Dr. Joycelyn S. Harrison presents an overview of her program, Low Density Materials, at the AFOSR 2013 Spring Review. At this review, Program Officers from AFOSR Technical Divisions will present briefings that highlight basic research programs beneficial to the Air Force.
Dr. Frederica Darema presents an overview of his program, Dynamic Data Driven Applications Systems (DDDAS), at the AFOSR 2013 Spring Review. At this review, Program Officers from AFOSR Technical Divisions will present briefings that highlight basic research programs beneficial to the Air Force.
Dr. Charles Lee presents an overview of his program, Organic Materials Chemistry, at the AFOSR 2013 Spring Review. At this review, Program Officers from AFOSR Technical Divisions will present briefings that highlight basic research programs beneficial to the Air Force.
Dr. Mitat A. Birkan presents an overview of his program, Space Propulsion and Power, at the AFOSR 2013 Spring Review. At this review, Program Officers from AFOSR Technical Divisions will present briefings that highlight basic research programs beneficial to the Air Force.
Dr. Jim Hwang presents an overview of his program, GHz-THz Electronics, at the AFOSR 2013 Spring Review. At this review, Program Officers from AFOSR Technical Divisions will present briefings that highlight basic research programs beneficial to the Air Force.
Dr. Frederica Darema presents an overview of his program, Dynamic Data Driven Applications Systems (DDDAS), at the AFOSR 2013 Spring Review. At this review, Program Officers from AFOSR Technical Divisions will present briefings that highlight basic research programs beneficial to the Air Force.
Dr. Charles Lee presents an overview of his program, Organic Materials Chemistry, at the AFOSR 2013 Spring Review. At this review, Program Officers from AFOSR Technical Divisions will present briefings that highlight basic research programs beneficial to the Air Force.
Dr. Mitat A. Birkan presents an overview of his program, Space Propulsion and Power, at the AFOSR 2013 Spring Review. At this review, Program Officers from AFOSR Technical Divisions will present briefings that highlight basic research programs beneficial to the Air Force.
Dr. Jim Hwang presents an overview of his program, GHz-THz Electronics, at the AFOSR 2013 Spring Review. At this review, Program Officers from AFOSR Technical Divisions will present briefings that highlight basic research programs beneficial to the Air Force.
Probing Molecular Electronic Structure Using High Harmonic Generation TomographyChelsey Crosse
The structure of valence electronic orbitals of a molecule determines the majority of chemical properties. Generation of high-order harmonic frequencies from atomic sources has been directly related to the electronic structure of the atom, (1) and extended as far as tomographic reconstruction of linearly symmetric polyatomic molecular systems with some success. (2,3,4)
However, because of the increased resolution of these reconstructions, discrimination of fine details of the orbital reconstructions reveals some inconsistencies in the orbital shapes when compared with past models & theoretical calculations. (2) There are several proposed corrections to the Strong Field Approximation (SFA) that currently underlies tomographic reconstruction as well as all other experiments that use high harmonic generation (HHG) to probe molecular systems. (5,6,7)
---------------------------------------------------------------------
1. Lewenstein et al. Phys Rev A 49 (3) 1994.
2. Salieres, Maquet, Haessler, Caillat, Taieb. Rep. Prog. Phys. 75 (2012) 062401.
3. Li, Liu, Yang, Song, Zhao, Lu, Li, Xu. Opt. Ex. 21 (6) 2013. 7599.
4. Torres et al. Phys Rev. Lett. 98 (2007) 203007.
5. Diveki et. al. J. Chem Phys. 414 (2013) 121.
6. Yip, Palacios, Rescigno, McCurdy, Martin. J. Chem Phys 414 (2013) 112.
7. Spanner, Patchkovskii. J. Chem. Phys. 414 (2013) 10.
Quantum dots for optoelectronic devices - phdassistancePhD Assistance
Nanometre-scale semiconductor chips have been imagined as next-generation technology with high functionality and convergence. Quantum dots, also known as artificial atoms, have special properties owing to their quantum confinement in all three dimensions. Quantum dots have a lot of interest in optoelectronic systems because of their special properties.
For decades, self-assembled nanostructures have been a topic of considerable concern and significance.
Learn More:https://bit.ly/3xJJAiZ
Contact Us:
Website: https://www.phdassistance.com/
UK: +44 7537144372
India No:+91-9176966446
Email: info@phdassistance.com
This Presentation is based on our Research work carried out in GNDU Amritsar and DAVIET, Jallandhar. We fabricated Ion track filters; nanowires and some Exotic Patterns for the first time in India using simple Techniques.
Dr. Jeffrey Owrutsky presents an overview of Dr. Michael Berman's program - Molecular Dynamics and Theoretical Chemistry - at the AFOSR 2012 Spring Review.
Ion Beam Analytical Technique PIXE for Pollution Study at Dhaka Van de Graaff...iosrjce
IOSR Journal of Applied Physics (IOSR-JAP) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of physics and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in applied physics. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Dr. Patrick Bradshaw presents an overview of his program, Sensory Information Systems, at the AFOSR 2013 Spring Review. At this review, Program Officers from AFOSR Technical Divisions will present briefings that highlight basic research programs beneficial to the Air Force.
Probing Molecular Electronic Structure Using High Harmonic Generation TomographyChelsey Crosse
The structure of valence electronic orbitals of a molecule determines the majority of chemical properties. Generation of high-order harmonic frequencies from atomic sources has been directly related to the electronic structure of the atom, (1) and extended as far as tomographic reconstruction of linearly symmetric polyatomic molecular systems with some success. (2,3,4)
However, because of the increased resolution of these reconstructions, discrimination of fine details of the orbital reconstructions reveals some inconsistencies in the orbital shapes when compared with past models & theoretical calculations. (2) There are several proposed corrections to the Strong Field Approximation (SFA) that currently underlies tomographic reconstruction as well as all other experiments that use high harmonic generation (HHG) to probe molecular systems. (5,6,7)
---------------------------------------------------------------------
1. Lewenstein et al. Phys Rev A 49 (3) 1994.
2. Salieres, Maquet, Haessler, Caillat, Taieb. Rep. Prog. Phys. 75 (2012) 062401.
3. Li, Liu, Yang, Song, Zhao, Lu, Li, Xu. Opt. Ex. 21 (6) 2013. 7599.
4. Torres et al. Phys Rev. Lett. 98 (2007) 203007.
5. Diveki et. al. J. Chem Phys. 414 (2013) 121.
6. Yip, Palacios, Rescigno, McCurdy, Martin. J. Chem Phys 414 (2013) 112.
7. Spanner, Patchkovskii. J. Chem. Phys. 414 (2013) 10.
Quantum dots for optoelectronic devices - phdassistancePhD Assistance
Nanometre-scale semiconductor chips have been imagined as next-generation technology with high functionality and convergence. Quantum dots, also known as artificial atoms, have special properties owing to their quantum confinement in all three dimensions. Quantum dots have a lot of interest in optoelectronic systems because of their special properties.
For decades, self-assembled nanostructures have been a topic of considerable concern and significance.
Learn More:https://bit.ly/3xJJAiZ
Contact Us:
Website: https://www.phdassistance.com/
UK: +44 7537144372
India No:+91-9176966446
Email: info@phdassistance.com
This Presentation is based on our Research work carried out in GNDU Amritsar and DAVIET, Jallandhar. We fabricated Ion track filters; nanowires and some Exotic Patterns for the first time in India using simple Techniques.
Dr. Jeffrey Owrutsky presents an overview of Dr. Michael Berman's program - Molecular Dynamics and Theoretical Chemistry - at the AFOSR 2012 Spring Review.
Ion Beam Analytical Technique PIXE for Pollution Study at Dhaka Van de Graaff...iosrjce
IOSR Journal of Applied Physics (IOSR-JAP) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of physics and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in applied physics. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Dr. Patrick Bradshaw presents an overview of his program, Sensory Information Systems, at the AFOSR 2013 Spring Review. At this review, Program Officers from AFOSR Technical Divisions will present briefings that highlight basic research programs beneficial to the Air Force.
James Fillerup, PE, Director, presents an overview of his program, SOARD Research Portfolio, at the AFOSR 2013 Spring Review. At this review, Program Officers from AFOSR Technical Divisions will present briefings that highlight basic research programs beneficial to the Air Force.
Dr. Chiping Li presents an overview of his program, Energy Conversion and Combustion Sciences, at the AFOSR 2013 Spring Review. At this review, Program Officers from AFOSR Technical Divisions will present briefings that highlight basic research programs beneficial to the Air Force.
Dr. Michael Berman presents an overview of his program, Molecular Dynamics & Theoretical Chemistry, at the AFOSR 2013 Spring Review. At this review, Program Officers from AFOSR Technical Divisions will present briefings that highlight basic research programs beneficial to the Air Force.
Dr. John D. Schmisseur presents an overview of his program, Aerothermodynamics & Turbulence, at the AFOSR 2013 Spring Review. At this review, Program Officers from AFOSR Technical Divisions will present briefings that highlight basic research programs beneficial to the Air Force.
Study of Materials Properties Made of Steel, Stainless Steel, Aluminium, and ...ijtsrd
The number of areas in units is currently reducing daily due to the large population. Earlier, when populations werent as large, they continued to employ the horizontal arrangement due to the large area available per person . However, individuals today choose the vertical system tall building due to scarcity of area . All of the forces acting on the structure, including its own weight and the grounds ability to support it, must be taken into consideration. STAAD PRO will facilitate the process. Static analysis, seismic analysis, and natural frequency are examples of problems that STAAD PRO can address with IS CODE. Mohammed Uvaish Mansoori | Rajesh Misra "Study of Materials Properties Made of Steel, Stainless Steel, Aluminium, and Concrete While Applying the Total Load to the Geometry" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-7 | Issue-1 , February 2023, URL: https://www.ijtsrd.com/papers/ijtsrd52787.pdf Paper URL: https://www.ijtsrd.com/engineering/civil-engineering/52787/study-of-materials-properties-made-of-steel-stainless-steel-aluminium-and-concrete-while-applying-the-total-load-to-the-geometry/mohammed-uvaish-mansoori
Damping Of Composite Material Structures with Riveted JointsIJMER
Vibration and noise reduction are crucial in maintaining high performance level and
prolonging the useful life of machinery, automobiles, aerodynamic and spacecraft structures. It is
observed that damping in materials occur due to energy release due to micro-slips along frictional
interfaces and due to varying strain regions and interaction between the metals. But it was found
that the damping effect in metals is quite small that it can be neglected. Damping in metals is due to
the micro-slips along frictional interfaces. Composites, however, have better damping properties
than structural metals and cannot be neglected. Typically, the range of composite damping begins
where the best damped metal stops.In the present work, theoretical analysis was done on various
polymer matrix composite (glass fibre polyesters) with riveted joints by varying initial conditions.
Strain energy loss was calculated to calculate the damping in composites. Using FEA model, load
variation w.r.t time was observed and the strain energy loss calculated was utilised in finding the
material damping for Carbon fibre epoxy with riveted joints. Various simulations were performed in
ANSYS and these results were utilised to calculate the loss factor, Rayleigh‘s damping constants
and logarithmic decrement.
Impact of RoHS Legislation on the High Performance Industry
In 2006 the European Union issued a Directive on the Restriction of Hazardous Substances (RoHS) which among other materials banned the use of lead in electronics. The Aerospace and Defense (A&D) industry in the US designs and manufactures products that carry more than three billion passengers worldwide on any given day as well as systems which are vital to our national security. In order to transition to lead-free electronics the A&D industry demands careful analysis and research into the performance, reliability and safety of these materials in order to maintain public safety and assure our war-fighters’ mission success is not compromised or risked. In this effort the College of Engineering at Tuskegee University and the Boeing Company has teamed to fill some of the many knowledge gaps that surround this new technology. Researchers at Tuskegee are undertaking an effort to understand the growth mechanism associated with the formation of tin whiskers and how to mitigate these risks. Since the formation of binary compounds are suspected of causing fractures in these new Pb-free solder alloys, Tuskegee is studying the migration of binary compounds in a root cause investigation. Also Tuskegee is studying the effects tin whiskers may have on the ability of conformal coatings to protect Circuit Boards from corrosion.
tA composite material can be defined as a combination of two or more materials that gives better properties than those of the individual components used alone. In contrast to metal-lic alloys, each material retains its separate chemical, physical, and mechanical properties.The two constituents are reinforcement and a matrix. The main advantages of compositematerials are their high strength and stiffness combined with low density when comparedto classical materials. Micromechanical approach is found to be more suitable for the anal-ysis of composite materials because it studies the volume proportions of the constituentsfor the desired lamina stiffness and strength.It is found that the manufacturing processes are responsible of many defects which mayarise in fibers, matrix and lamina. These defects, if they exist include misalignment of fibers,cracks in matrix, non uniform distribution of the fibers in the matrix, voids in fibers andmatrix, delaminated regions, and initial stress in the lamina as a result of its manufactureand further treatment.The above mentioned defects tend to propagate as the lamina is loaded causing an accel-erated rate of failure. The experimental and theoretical results in this case tend to differ.Hence, due to the limitations necessary in the idealization of the lamina components, estimated should be proved experimentally.
EXPERIMENTAL STUDY ON STRENGTH BEHAVIOUR OF SELF COMPACTING CONCRETE USING RE...AM Publications
The construction of modern structures alarming the attention of use of materials with improved properties
in respect of strength, stiffness, toughness and durability. Concrete is one of the most widely used construction material
having several advantages such as high strength, good mould ability and high durability. The major disadvantages of
concrete are its poorer tensile strength and lesser ductility (toughness). Conventional concrete used in building
construction and engineering applications requires compaction to attain strength, durability and homogeneity. The
typical method of compaction, by vibration, generates delays and additional costs in projects and could pose a serious
health hazard due to noise pollution in and around construction sites. Self Compacting Concrete (SCC) is a concrete
which is highly flowble, can flows readily into place, fill the formwork without any compaction and without undergoing
any significant segregation. Recycling is the act of processing the used material for creating a new useful product.
Construction and Demolished waste also generate Recycled Aggregate (RA). Such a Recycled Aggregate proved to be a
reliable alternative to Natural Aggregates (NA) in concrete. There is a growing need for renovation from a usual
consumption based society to a sustainable society owing the natural environment pollution, exhaustion of natural
resources and as decreasing capacity of disposal facilities for final waste. Use of aggregates from Building Demolished
Waste (BDW) in structural concrete is definitely an important stride. Use of RA in developing SCC is certainly a novel
thought towards achieving a sustainable concrete. There is a pressing demand for the use of Recycled Aggregate in
recent concretes, as sustainability is given the highest importance in today’s world. This has necessitated the make use
of Recycled Aggregates in SCC and fibre based SCC. Hence Reinforced Self Compacting Concrete using Recycled
Aggregate with fibres may be a potential material in construction. In order to clearly understand the performance of
such a concrete, there is a call for to study the stress-strain and flexural strength behaviour. The present study focuses
on flexural bond strength behaviour of Fibre Reinforced Self Compacting Concrete by replacing the natural Aggregate
with Recycled Aggregate. BDW is used as coarse aggregate in the concrete, with an aim to achieve sustainable concrete.
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Harrison - Low Density Materials - Spring Review 2013
1. 1DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution7 March 2013
Integrity Service Excellence
Joycelyn S. Harrison
Program Officer
AFOSR/RTD
Air Force Research Laboratory
Low Density Materials
Date: 03 07 2013
2. 2DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
2013 AFOSR SPRING REVIEW
NAME: Low Density Materials
PORTFOLIO DESCRIPTION :
Transformative research targeting advanced materials that enable
substantial reductions in system weight with enhancements in
performance and function.
INCREASING SPECIFIC PERFORMANCE
(performance/pound)
PORTFOLIO SUB-AREAS:
Structural Lightweighting
Multifunctionality
Materials By Design
Increased emphasis on forging interdisciplinary
teams to address broad-base challenges
3. 3DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
Why Low Density Materials?
If it has structure and rises above the ground,
material density is important!
Material density impacts: payload capacity, range, cost,
agility, survivability, environmental impact….
4. Research Thrusts
STRUCTURAL LIGHTWEIGHTING
- taking the weight out of traditional
composites
MULTIFUNCTIONALITY
- coupling structure + function
MATERIALS BY DESIGN
- bottoms-up materials design based on structural requirements
DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
5. 5DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
Structural Lightweighting Highlights
Translating the revolutionary properties of nanostructured
materials to macroscale load-bearing structures
• Signed Memorandum of Agreement with NASA LaRC
• Nanotube Assemblages for Structures Workshop, April 2012
• Established working group to develop coordinated interagency
roadmap for structural nanomaterials
Improved Fibers
& Resins
Nanoscale
Porosity
Nanotechnology Predictive Modeling
Nanomaterials for Aerospace Structures
6. 6DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
Materials By Design
Design the structure
based on limitations of
the material
7. 7DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
Discipline
MaterialsScience
PhysicsChemistryEngineering
pm nm µm mm
Length Scale
Electronic
Atomistic
Micro
Macro
Dr. Tim Breitzman
AFRL/RXBC
Dr. Rajiv Berry
AFRL/RXBN
Prof. Jim Moller
Connecting Atomistic & Microscale Behavior
-- Essential for Materials Design
8. 8DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
Fundamental Scientific Challenges
Limits - Current Practice Novel Approach
• Derive resin fracture toughness from
atomistic behavior
• Integrate atomic & molecular simulation
methods into materials system analysis
• Unrealistic methods used to represent
strain rate
• Bond scission not considered or
permitted via a force field
parameterized for other contexts
• Toughness properties in continuum
scale based on empiricism
• Strain-rate-controlled deformation
• Bond scission in covalently-bonded glassy
polymer systems via Quantum Mechanics
• Detailed post-processing
• No direct knowledge of fracture nucleation
(Morgan, Mones, Steele, Polymer, 1982)
Connecting Atomistic & Microscale Behavior
-- Essential for Materials Design
Goals
9. 9DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
AccomplishmentsTechnical Approach
Impact
• Improved understanding of the origins of
fracture: captured subatomic, molecular, &
nanoscale events at nucleation.
• Effect of resin formulation on nucleation.
• Information for micro-mechanics
• Quantum mechanical (QM) simulation of highly-
strained zones
• Bond scission during deformation
• Unique analysis of molecular re-conformation
dynamics & free volume development
Segments of molecular network
absorbing mechanical energy
Weak points of the
cross-linked network
Integrated Quantum Mechanics-based Bond
Scission with Molecular Dynamics
Chain backbone dihedral angle
associated to uncoiling
Free volume clusters in
molecular system
Strain
Cumulative
Scissions
Specificabsorption
energy
After
Scission
Before
Scission
Strained epoxy system
Strain
Strain
Angle
10. 10DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
Strength,σf(MPa)
100
10-1
101
102
103
104
0.1 0.3 1 3 10 30
Density, ρ (Mg/m3)
polymers
ceramics
polymer
composites
metal
alloys
Al Ti
Fe
Strength-Density
- metals/polymers:yield strength
- ceramics: compressive strength
BMG’s
molecular
hybrids
• Molecular hybrids exhibit the lowest densities
with the potential for significant increases in
strength and toughness properties
• Organic and inorganic components from
molecular to macro length scales enables
mechanically-robust materials with
multifunctional property sets
• Opportunity to tailor mechanical, thermal,
electrical, and optical properties
Prof. Reinhold
Dauskardt
• Fellow of ACerS and
ASM
• Recipient of Maso,
IBM, SIA, and TMS
Awards for
fundamental
contributions to
structural and
electronic materials
Bottom-Up Design of Multifunctional Hybrid Materials
100 nm 1 mm 100 mm 1 mmÅ 10 nm
200 nm
Molecular Hybrids
Porous Hybrids and
Nano-Composites Hybrid Laminates
Multifunctional Devices
11. 11DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
Molecular Hybrid Design:
High Performance Bonding
Atom%
Sputtering Depth, h (nm)
Si
HL
Epoxy-Rich
Zr-Rich
Sputteringa.)
SiO2
TiO2
SnO2
Al2O3
NiO
ITO
BMG
tune parameters:
sol-gel pH
composition
metal atoms
surface catalysis
Hybrids
20 30 40 50 60 70 80 90 100
10-11
10-10
10-9
10-8
10-7
10-6
10-5
10-4
CrackGrowthRate,da/dt(m/s)
Applied Strain Energy Release Rate, G (J m-2
)
With HL
85% RH
25˚C
Without HL
30% RH
Without
HL
85% RH
Hybrid Layer
Si Substrate
Hybrid Layer
Untoughened epoxy
(~50 μm)
Si Substrate
Hybrid Layer
Si Substrate
Untoughened epoxy
(~50 μm)
Si Substrate
Interphase RegionPerformance Laminates
Adhesive Joints
Hybrid Sol /Gel Film
Toughened Epoxy
Substrate
Polymer layer
Interphase
Interphase
Substrate Oxide
Hybrid Molecular
Hybrid Sol / Gel Layers
12. 12DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
1D
Carbon
Nanotubes
2D
Graphene
Nanostructured Carbon
0D
Fullerene
3D
?
13. 13DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
Overarching Scientific Challenges
• Covalent junctions between building blocks leading to 3D networks
• Systematic characterization/modeling of the junctions and properties
• Development of scalable growth processes for 3D nanostructured solids
• Structure-property correlations of mechanical and transport properties
Potential Payoffs
• Translation of exceptional 1D and 2D properties of tubes and sheets to 3D
• High surface area for energy storage and conversion devices
• Orthogonal transport of phonons for thermal management
• Mechanical reinforcement
MURI 11: Nanofabrication of
3D Nanotube Architectures
14. 14DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
7-atom rings at the graphene-nanotube
junction creates a seamless conductor
Surface area > 2,000 m2/gm
Model prediction
Prof. James Tour
Prof. Boris
Yakobson
Towers of nanotubes sprout from graphene
(Futurity, Sci. and Technology, Nov. 27, 2012.)
(Nature Communications, 3:1225 doi: 10.1038/2234 (2012))
Rice U. MURI Team 2012 Highlights
Comparison of simulated and
experimental STEM images
illustrating covalent bonding
between CNTs and graphene
15. 15DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
Electrical properties of the 3D CNT/graphene nanostructures
(Nature Communications, 3:1225 doi: 10.1038/2234 (2012))
-1.0 -0.5 0.0 0.5 1.0
-1.0
-0.5
0.0
0.5
1.0
I(mA)
V(V)
I
II
III
SiO2
Graphene
CNT
Pt
SiO2
Graphene
CNT
Pt
SiO2
Graphene
CNT
Pt
I
II
III
Ohmic contact at CNT and
graphene junctions
Rice U. MURI Team 2012 Highlights
16. 16DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
3D Solids of Boron-Doped Nanotube Networks
(CBxMWNT sponges)
Covalent
junctions
established
via boron
doping led
to novel
properties
Hydrophobic Oleophilic
Prof. P. Ajayan
Rice Univ.
Prof. Mauricio
Terrones
Penn State Univ.
Rice U. MURI Team 2012 Highlights
17. 17DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
CSS, Inc. is a spin-off company out of
Rice University (Houston, TX)
founded in August 2012 (by student
Daniel Hashim) with a mission to
research, develop, and manufacture
patent protected 3-D nanosponge
products from the lab to the
marketplace. Exploiting the
nanomaterial’s unique combination
of multifunctional properties at both
the nano-scale and macro-scale,
many possible applications are
expected for the environment,
energy, and biomedical industries.
Carbon Sponge Solutions, Inc.
- Road to commercialization
MURI Discovery Leads to Tech Transition
18. 18DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
CNT Fiber Tech Transition
Prof. Matteo
Pasquali
“…high-performance multifunctional carbon nanotube (CNT) fibers that
combine the specific strength, stiffness, and thermal conductivity of carbon
fibers with the specific electrical conductivity of metals. “
(Science, 11 January 2013: Vol. 339 no. 6116 pp. 182-186.)
Tech Transition
- AFRL/RX
- Teijin Aramids
19. 19DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
AFOSR/NSF Joint Research Solicitation
Basic Research Initiative
Advance understanding of folding and unfolding of materials
structures across scales for design of engineered systems
ODISSEI: Origami Design for Integration of
Self-assembling Systems for Engineering Innovation
• Synthesizing Complex Structures from Programmable Self-Folding Active Materials, Richard Malak, Texas A&M U.
• Mechanical Meta-Materials from Self-Folding Polymer Sheets, Christian Santangelo, U. of Massachusetts Amherst
• Photo-Origami, Hang (Jerry) Qi, U. of Colorado at Boulder
• Externally-Triggered Origami of Responsive Polymer Sheets, Jan Genzer, North Carolina State U.
• Programmable Origami for Integration of Self-assembling Systems in Engineered Structures,
Daniela Rus, Massachusetts Institute of Technology
• Multi-field Responsive Origami Structures - Advancing the Emerging Frontier of Active Compliant Mechanisms,
Mary Frecker, Pennsylvania State U.
• Uniting Principles of Folding and Compliant Mechanisms to Create Engineering Systems, Larry Howell, Brigham
Young U.
• Multi-scale Origami for Novel Photonics, Energy Conversion, Max Shtein, U. of Michigan Ann Arbor
Jointly reviewed and funded 8 grants totaling approx. $16M
20. 20DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
Joint RX, RQ Labtask
Adaptive Origami for Efficiently Folded Structures
STRUCTURES MECHANISMS
Aeronautics Aerospace
Light and strong Compact, repeated pattern
Optics, Sensors, Energy Harvesting, Bio Research Team
http://www.origami-resource-center.com/origami-science.html
Origami Honeycomb
Shock absorbing
structures
Self folding sheet
Ultrathin, High-
Resolution Origami
Lens
Deployable Solar sails, Antennas
Solar origami
Expandable stents
Wing folding
James Joo Greg Reich Rich Vaia Tim White Loon-Seng Tan
21. 21DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
Research Community Leadership
DOD COMMUNITY
INTERNATIONAL
AFOSR
Low
Density
Materials
RX, RV, RQ, RW
LRIRs, STTRs,
MURIs,
Workshops,
Reviews, Visits
Lightweight
Structures
Nanostructured
Materials
AFRL
DIRECTORATES
OTHER AGENCIES
Origami
2D Beyond Graphene
US-India Tunable
Materials Forum
US-AFRICA
Initiative
Reliance 21 Board
Materials and
Processing COI
22. 22DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
Acknowledgements
Markus Buehler
MIT
Ashlie Martini
UC Merced
Robert Moon
Forrest Products Lab
Acknowledgements
Brandon Arritt
AFRL/RV
Ryan Justice
AFRL/RX
Benji Marayama
AFRL/RX
Chris Muratore
AFRL/RX
Rajesh Naik
AFRL/RX
Sharmila
Mukhopadhyay
Wright State U.
James Seferis
GloCal Network
Satish Kumar
Georgia Tech
Greg Odegard
Michigan Tech
Soumya Patnaik
AFRL/RX
Ajit Roy
AFRL/RX
Marilyn Minus
Northeastern U.
Yuris Dzenis
U. Nebraska
Stephen Cheng
U. Akon
Frank Harris
U. Akon
Samit Roy
U. Alabama
Alex Zettyl
UC Berkeley
Ben Wang
Georgia Tech
Cheol Park
Natl Inst Aerospace
Richard Liang
Florida State U.
Jeff Youngblood
Purdue U.
Changhong Ke
Binghamton U.
Mesfin Tsige
U. Akron
Rodney Priestley
Princeton U.
Henry Sodano
U. Florida
Micah Green
Texas Tech U.
Philip Bradford
NC State U.
Yuntian Zhu
NC State U.
Pulickel Ajayan
Rice U.
Liming Dai
Case Western
Reserve U.
Olesya Zhupanska
U. Iowa
24. 24DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
Prof. Pulickel Ajayan, Lead PI
Prof. James Tour
Prof. Boris Yacobson
Prof. Matteo Pasquali
Rice Univ.
Prof. Mauricio Terrones
Penn State Univ.
Prof. Ray Baughman
Univ. Texas Dallas
Prof. Jonghwan Suhr
Univ. Delaware
Rice Univ. MURI Team:
Strong Multidisciplinary Collaborations
25. 25
Hierarchical Organization
in Materials Design
Goals
- Develop fundamental understanding of the role of hierarchy in controlling properties
and functionality in material surfaces, interfaces and in cellular structures
- Analytical and predictive numerical models for studying the mechanical behavior of
hierarchical honeycombs, composite lattice structures and bonded joints with non-flat
interfaces
Self-similar Hierarchical Spiderweb
Honeycombs with 1st and 2nd order hierarchy
Prof. Ashkan Vaziri,
Northestern Univ.
• AFOSR YIP Award
Numerical simulations show significant increase in
the effective stiffness of spiderweb honeycombs
compared to regular honeycombs of the same
mass/density
DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
26. 26DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
Increasing Specific Performance
in Aerospace Platforms
27. 27
Self-Similar Hierarchical Honeycombs
A new class of self-similar (fractal-
appearing) hierarchical honeycombs with a
wide range of elastic, plastic and load-
induced expansion properties1
n=3
n=4
Maximumachievablestiffness
Order of hierarchy
Optimum topology of hierarchical honeycombs,
which approaches the fractal limit.
DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution
28. 28
Fiber reinforced composite panels with lattice
cores
Bonded joints with non-flat interface design.
Bioinspired Surface and Interfaces
DISTRIBUTION STATEMENT A – Unclassified, Unlimited Distribution