361785406-Manufacturing-of-composites.ppt
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This document is a presentation by seven students from the Department of Mechanical and Industrial Engineering at Concordia University about manufacturing composites. It discusses different composite materials like carbon fiber reinforced polymer and Nomex honeycomb. It also covers topics like preventing defects, mitigating thermal stresses through laminate design, and sources of voids and their mitigation. Furthermore, it compares autoclave and out-of-autoclave composite curing methods. The presentation includes steps for manufacturing a sandwich composite panel using prepregs, adhesive films and a Nomex honeycomb core.
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Historically, mechanical engineering has relied heavily on human expertise and empirical methods to solve complex problems. With the introduction of computer-aided design (CAD) and finite element analysis (FEA), the field took its first steps towards digitization. These tools allowed engineers to simulate and analyze mechanical systems with greater accuracy and efficiency. However, the sheer volume of data generated by modern engineering systems and the increasing complexity of these systems have necessitated more advanced analytical tools, paving the way for AI.
AI offers the capability to process vast amounts of data, identify patterns, and make predictions with a level of speed and accuracy unattainable by traditional methods. This has profound implications for mechanical engineering, enabling more efficient design processes, predictive maintenance strategies, and optimized manufacturing operations. AI-driven tools can learn from historical data, adapt to new information, and continuously improve their performance, making them invaluable in tackling the multifaceted challenges of modern mechanical engineering.
cnn.pptx Convolutional neural network used for image classication
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AI assisted telemedicine KIOSK for Rural India.pptx
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Rainfall intensity duration frequency curve statistical analysis and modeling...
Using data from 41 years in Patna’ India’ the study’s goal is to analyze the trends of how often it rains on a weekly, seasonal, and annual basis (1981−2020). First, utilizing the intensity-duration-frequency (IDF) curve and the relationship by statistically analyzing rainfall’ the historical rainfall data set for Patna’ India’ during a 41 year period (1981−2020), was evaluated for its quality. Changes in the hydrologic cycle as a result of increased greenhouse gas emissions are expected to induce variations in the intensity, length, and frequency of precipitation events. One strategy to lessen vulnerability is to quantify probable changes and adapt to them. Techniques such as log-normal, normal, and Gumbel are used (EV-I). Distributions were created with durations of 1, 2, 3, 6, and 24 h and return times of 2, 5, 10, 25, and 100 years. There were also mathematical correlations discovered between rainfall and recurrence interval.
Findings: Based on findings, the Gumbel approach produced the highest intensity values, whereas the other approaches produced values that were close to each other. The data indicates that 461.9 mm of rain fell during the monsoon season’s 301st week. However, it was found that the 29th week had the greatest average rainfall, 92.6 mm. With 952.6 mm on average, the monsoon season saw the highest rainfall. Calculations revealed that the yearly rainfall averaged 1171.1 mm. Using Weibull’s method, the study was subsequently expanded to examine rainfall distribution at different recurrence intervals of 2, 5, 10, and 25 years. Rainfall and recurrence interval mathematical correlations were also developed. Further regression analysis revealed that short wave irrigation, wind direction, wind speed, pressure, relative humidity, and temperature all had a substantial influence on rainfall.
Originality and value: The results of the rainfall IDF curves can provide useful information to policymakers in making appropriate decisions in managing and minimizing floods in the study area.
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Software Engineering and Project Management - Introduction, Modeling Concepts...
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
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Unit-III-ELECTROCHEMICAL STORAGE DEVICES.ppt
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361785406-Manufacturing-of-composites.ppt
- 1. PRESENTED BY: Harprek Singh ID # 40010706 Deepack Baboria ID # 40011256 Cedrick Thomas ID # 40001435 Samuel Ste Marie ID # 40016949 CarolineCollins ID # 40042958 Oscar Guzman ID # 40025949 Laura Robayo ID # 40026816 DEPARTMENT OF MECHANICAL AND INDUSTRIAL ENGINEERING CONCORDIA UNIVERSITY MECH 6521. MANUFACTURING OF COMPOSITES
- 2. MECH 6521. MANUFACTURING OF COMPOSITES Carbon fiber reinforced polymer (CFRT) Nomex honeycomb
- 3. • Resin degradation • Moisture Prevent defects in the final part • Design a symmetrical laminate Mitigate residual thermal stresses MECH 6521. MANUFACTURING OF COMPOSITES Voids Ply orientation
- 4. MECH 6521. MANUFACTURING OF COMPOSITES OUT-OF- AUTOCLAVE AUTOCLAVE The pressure from the autoclave helps to consolidate the composite lamina and collapse voids created from entrapped gases. The available pressure is significantly reduced, so other means of evacuating air must be exploited
- 5. MECH 6521. MANUFACTURING OF COMPOSITES simultaneous cure of a stiffener and a skin The interface between the two parts may or may not have an adhesive layer increase fatigue and peel resistance Co-cured skins poorer mechanical properties poor panel surface quality
- 6. MECH 6521. MANUFACTURING OF COMPOSITES Personal protective equipment Cleaning tool Preparation of the tool plate
- 7. MECH 6521. MANUFACTURING OF COMPOSITES Bag contains: Let the material thaw for a couple of hours ! CFRT Pre-pregs Adhesive films Kit of thawed CFRT prepreg and adhesive films Stored in a freezer below 0°F
- 8. MECH 6521. MANUFACTURING OF COMPOSITES Adhesive films Pre-preg plies 1 2 Removal of backing material from the CFRT prepreg layer
- 9. MECH 6521. MANUFACTURING OF COMPOSITES 1sT CFRT layer on the metal mold 3 1St Adhesive film over the pre-preg 4
- 10. MECH 6521. MANUFACTURING OF COMPOSITES Nomex core over the adhesive film 5 2nd Adhesive film over the honeycomb 6
- 11. MECH 6521. MANUFACTURING OF COMPOSITES Final sandwich panel construction 7
- 12. MECH 6521. MANUFACTURING OF COMPOSITES 7 Placing dams 8 Fixing dams 9
- 13. MECH 6521. MANUFACTURING OF COMPOSITES 10 Putting the sealant tape into the tool plate
- 14. MECH 6521. MANUFACTURING OF COMPOSITES 10 Release film
- 15. MECH 6521. MANUFACTURING OF COMPOSITES 11 12 Bleeder cloth Breather cloth Seat for the Vacuum Valve
- 16. MECH 6521. MANUFACTURING OF COMPOSITES 13 14 Vacuum bag Pleats in the vacuum bag material
- 17. MECH 6521. MANUFACTURING OF COMPOSITES 16 Sealing the vacuum bag to the tool plate
- 18. MECH 6521. MANUFACTURING OF COMPOSITES 17 Fixing the vacuum valve
- 19. MECH 6521. MANUFACTURING OF COMPOSITES The bag was checked for leaks 18 Final assembly
- 20. MECH 6521. MANUFACTURING OF COMPOSITES Temperature Time Pressure cycle 19 Sandwich panel inside the oven
- 21. MECH 6521. MANUFACTURING OF COMPOSITES