CDS3.0 Composite Design and Simulation Software

Composite Design and Simulation Software
Version 3.0

John J. Tierney
Center for Composite Materials
University of Delaware, Newark, DE 19716, U.S.A

© 2010 University of Delaware All rights reserved

© 2010 University of Delaware
All rights reserved

Evolution of Analytical Code Development at CCM
Consider CDS as an advanced scientific calculator for
composites with additional capabilities for processing and loading
CDS v3.0
laminated plates and tube structures

Useful if you have a design problem with a wide range of usable
materials and problems without a full set of material property CDS2.0
inputs CDS 1.0

Web Interface CDS Suite Parametric Modeling
1997
Expanded Functionality
2010
CAST

Unified Environment
CMAP Structural and Process Simulation
LAM3D 2008
LAMPAT Initial GUI Development
MICRO 1999
PIRSA

The CDS: Composite Design and Simulation Suite is a continuously evolving
environment for real time design and analysis of composite laminates

DOS Based Programming
1989
John. J. Tierney © 2009 University of Delaware, All rights 2010
reserved
© University of Delaware, All Rights Reserved 2008

Composite Design and Simulation Software: Core Solvers

Materials Database Management & Generation
(CDS-MAT, DART, MAT162)

Thin Plate Mechanics
(CMAP)
Thermal Modeling
(COMPROSOFT, PIRSA4 CCDS, FEA IMPORT)

Thick Section Mechanics
(LAM3D, LAM3DNL)

Cure Kinetics Micromechanics Cylinder Design
(PIRSA4) (MICRO,MICRO2, TEXCAD) (CCDS)

Crystallization Kinetics SLS Viscoelastic Progressive Failure
(COMPROSOFT) (PIRSA, COMPROSOFT) (CMAP,LAM3D,LAMPAT)

Moisture Diffusion Quality Development Specialized Codes
(MDS) (PIRSA, COMPROSOFT) (CST)

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CDS3.0 Available Online

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Downloading CDS3.0

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CDS Version Releases
Demo Version Academic Release Standard Release Professional Release (ARL)

Example Materials Only Full Material Control Full Material Control Full Material Control

Thin, Thick and Cylindrical
Thin Laminates Only Thin Laminates Only Thin and Thick Laminates
Structures

Unidirectional Unidirectional
Full Micromechanics Full Micromechanics
Micromechanics Micromechanics

No Load/Save Capabilities Load/Save Available Load/Save Available Load/Save Available

Simple Plate Heat Transfer Simple Plate Heat Transfer Plate and ATP Heat Transfer Plate and ATP Heat Transfer
w/limits, Time Domain only w/limits, Time Domain only Time and Length Domain Time and Length Domain

Moisture Analysis Moisture Analysis

Cure Kinetics Cure Kinetics

ATP Processing ATP Processing

Progressive Failure Analysis FEA Export

Progressive Failure
FEA Export Analysis

Custom Analysis Available
CST Modules

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Starting CDS3.0
• When CDS3 is started this window
will first appear

• Upon first use, click the request key
button and fill out the form and select
the version requested. Additional
comments can be added on the right

• Click the “Save Request to File” to
save the license request to a file on
your PC.

• Click “Close” to close the license key
request form.

• You can still click “Start” to begin
using CDS3 but it will only work in
demonstration mode

• Email the key request file to
jtierney@udel.edu

• A license key is emailed back and
then restart the software and click the
“Import Key” button.

• The software will start in the
appropriate mode

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CDS v3.0 Interface
GUI divided into
three sections

The Menu Tree Input area

Results area

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The Menu Tree
• The menu tree is where all user data is created, loaded and
saved.
• Right clicking on any existing entity will bring up a series of
options such as new, load, save, export etc.

• The right click menu adapts to the selection clicked.

• The user can click on one or more entities which will also
change the right click options available. For example right
clicking on a list of materials (selected with the shift key) and
selecting the duplicate function will duplicate these materials.
Right clicking on the Materials entry will duplicate the entire set
of materials.

• This functionality is common throughout the CDS3.0 menu
environment allowing easy creation of materials, laminas,
laminates etc.

• You can select multiple items in a row by holding the shift key
or discrete items with the control key pressed when selecting
items.
• Note that you can only multi select items on the same level and
sub menu.
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Material Database Input: Single Material View
• Over 170 material properties with • User can modify properties within an
additional source Information analysis without loss of data

• Each material includes attachment of source, user and date information
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Temperature Dependent Material Input
• Right clicking on the material input table allows the user to assign temperature dependent
properties to any single property.
• Temperature dependent material properties are available for mechanical, physical and
transport properties.

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Material Database Input: Selected Materials View
• Select “Materials” on the menu tree to look at all materials.
• Hold the <Shift> key while selecting to look at specific materials

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Material Properties Summary: Ashby Chart
• Click the “Materials Summary” Tab to look at various properties with an Ashby or bar chart
• Use the cursor to identify each material

• Select which material to view using these drop down options
• You can compare any property directly with any other property
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Material Properties Summary: Bar Chart
• Up to three material properties can be compared with the bar chart
• Use the <shift> select on the menu tree to look at specific properties

• The table on the right shows the properties of the selected materials
• The material selected with the cursor is highlighted on this table

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Lamina Input: Micromechanics
• Models include continuous and short fiber micromechanics, Filled Resin Systems, SMC and
particulate systems

• Right click table to add, change or fill materials
• Use the materials table to edit properties directly (note that this edits material properties stored
in the database.
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Predicted Lamina Properties
• Predicted lamina properties include axial and stiffness, Poisson’s ratio, thermal expansion for:

• Continuous Fiber Laminas • Platelet Reinforcement
• Planer Fiber Reinforcement (SMC) • Porous Composite
• Axial Fiber Reinforcement (Extrude) • Random Fiber Composite
• Particulate Reinforcement • 3D Fiber Reinforcement (General)

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Predicted Lamina Properties
• Lamina properties are predicted in real time and can be viewed in a table, Ashby chart or bar
graph
• Lamina properties can be used in laminates or saved as new materials

• Select which material to view using these drop down options

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Stacking Input
• Clicking on the Stacking Tab (or selecting a laminate in the menu tree) opens the Stacking
section were laminates are created and edited. Like the materials section the user can view
a single laminate in standard view or observe and edit laminates in the global table view.

• The standard view table includes a table showing the current laminate and offers a number
of right click options

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Stacking <Right Click> Options

 Populate Laminate: Use this function to quickly populate a laminate by populating a laminate with the
selected Number of plies. The best approach is to first select a material (by right clicking the table) and
assigning it to the first ply. Then use the populate laminate function to add N plies to the laminate.
 Assign Material: Use this function to assign a material to a ply. The materials are filtered by type in the
selection for ease of selection.
 Add Ply (Plies): The selected ply (or plies by selecting and holding the shift key) on the table can be
added to the laminate to quickly add plies.
 Delete Ply (Plies): The selected ply (or plies by selecting and holding the shift key) on the table are
deleted. If all plies are deleted then the laminate resets to 1 ply and asks for a material to be selected.
 Symmetry: Right clicking this option makes the laminate symmetric. If one ply is selected then the
entire laminate is made symmetric. If two or more plies are selected (using the shift key) then those plies
are made symmetric
 Common Ply Orientations: Depending on the number of plies in the laminate the user can select a
series of common laminate orientations to populate the laminate. The common angle input at the top of
the table is used to assign less common +/- orientations to this function. Note the laminate is populated
with integer cells of these common ply orientations and the laminate may not be symmetric after picking
this function. (Click the Symmetry button to restore symmetry after this operation)
 Fill Column: Fills the selected column with data from the row selected. This works for all columns
including material selection.
 Invert Selection: If one ply is selected then the laminate is inverted, if more than one ply is selected
then the selection is inverted.
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Stacking Input: Multiple Laminates
• Click “Laminates” on the menu tree to look at all laminate in CDS3.0
• Allows user to quickly view, compare and edit multiple laminates

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Predicted Laminate Properties
• All laminate properties are predicted in real time
• Properties include average density, stiffness, Poisson’s ratio, shear modulus, thermal expansion

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Predicted Laminate Properties

• Compare up to three predicted properties from
all laminates
• View ABD, abcd matrix for selected laminates
• Use the <Shift> select option to view specific
laminates
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CDS Analysis Modules

• 1D Thermal
• Cylinder Transient Solution

• Thin Section

• Thick Cylinder

• Thick Section

• Discontinuous Tile
• Impact Model

• Automated Tape Placement
• Moisture • Compliant Interlayer
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1D Simple Plate Thermal Analysis Input
• Prescribe process inputs: velocity, time steps, initial temperature conditions
• Top and bottom boundary conditions, time, temperature and boundary conditions
• Right click boundary condition tables to change rate, and heat transfer coefficients

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1D Thermal Solution
• Boundary Condition Summary • Temperatures over time

• Time-Temperature-Thickness Contours • Through thickness temperatures

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Cylinder Transient Analysis
• Prescribe cylinder dimensions, initial temperature conditions, number of loading
cycles
• Right click boundary condition tables to change rate, and heat transfer coefficients

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Transient Thermal Response: Cylinder Solution
• Boundary Condition Summary • Temperatures over time

• Time-Temperature-Thickness Contours • Through thickness temperatures

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Laminate Response

• Laminate Principle and
Global Stresses and
Strains, Displacements
and factors of safety for
flat plates and cylinders.

• Right click any outputs
to save data to the
clipboard of directly to
Microsoft Excel

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Fastener Model-Thin Plate Bending Response
• The thin plate bending wave model can predict the static equivalent forces,
bending moments and resultant bolt pullout and shear stresses of a ballistic impact
on a plate.
• Model inputs include plate size and thickness. plate properties and boundary
conditions, number of bolts, bolt properties and dimensions. projectile inputs are
mass, dimension and velocity.

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Fastener Model-Thin Plate Bending Response
• This model is used to identify critical parameters for optimal design of a bolted
plate under high velocity impact.

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Fastener Design-Parametric Output
• Compare effect of any model input on static equivalent forces and stresses

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Experiments: Built in Data Reduction

Quickly generate material properties with curve
fitting and Statistics

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Source Information
• Material source information can be stored and assigned to any material within the
software

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Opening and Saving Data in CDS3.0

• Data is saved and loaded to the CDS Menu by right
clicking any item on the tree

• All files are saved to text (tab delimited) spreadsheet
format irrespective of what data is saved.

• When opening an spreadsheet the user is presented
with the contents of the file

• The user can then select some or all of the contents
to load into the current analysis.

• These files are generated locally so all propriety
content is protected.

• Databases have associative hierarchy, i.e. if you
save a laminate all materials within the laminate are
attached and stored for retrieval

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CDS3.0 Built in Searchable Help
• Help is available on the top
right of CDS3.0

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CDS3.0 Online Help and Pdf Files

www.ccm.udel.edu/CDS
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Summary

• In summary, CDS version 3.0 is an advanced software application for designing and analyzing
composite structures.

• CDS3.0 has built in database functionality, parametric analysis features and multi analysis
connectivity, i.e. thermal and structural analysis coupling.

• The new menu tree environment can be used to quickly store and retrieve data generated within
the software.

• CDS3.0 comes with example materials, laminates and analyses to quickly get started

• The new “Experiments” module provides built in data reduction capabilities directly within
CDS3

• Right clicking any data set saves to the clipboard or directly to Microsoft Excel.

• With this software, an designer engineer, process engineer or student can quickly determine
the effective properties and response of composite laminates, conduct micromechanics
calculations, as well as virtual process simulation and optimization.

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CDS3.0 Composite Design and Simulation Software

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