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The Challenges of Determining the Strength of Composites
24 Nov 2020 | Contributor(s):: Michael R Wisnom
Why are there such large differences in reported strengths of composites? Some of the reasons are the definition of strength, material variability, poor test methods, and subtle variations in carrying out the tests. But there are other important factors that affect strength that are not...
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iVABS
19 Nov 2020 | Contributor(s):: Haodong Du, Su Tian, Fei Tao, Wenbin Yu
iVABS, meaning integrated VABS environment, is pre-packaged PreVABS + VABS + gmsh + Dakota to facilitate design and optimization of composite airfoils, blades, or general beam cross-sections.Installer and a portable package are provided. For installer, everything will be set with the...
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Adaptive Sampling Assisted Surrogate Modeling of Initial Failure Envelopes of Composite Structures
10 Nov 2020 | Contributor(s):: Su Tian, Wenbin Yu
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Automating the Lay-up of Geometrically Complex Composite Structures Made from Preimpregnated Reinforcements: a Route to a Roadmap
04 Nov 2020 | Contributor(s):: Kevin Potter
A significant amount of research and industrial effort has been expended on the development of equipment such as automated fibre placement machines to lay-up prepregged reinforcements into structures of relatively simple geometry such as wing skins and spars, and fuselage structures. These...
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Defect Coupling Predicting the Strength and Life of Fiberous Composite Laminates
16 Oct 2020
After more than 30 years of careful experimental investigation and exhaustive development of discrete damage analysis methods including integrated computational mechanics methods, our community knows a great deal about how discrete defects such as matrix cracks and defect growth (e.g....
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Liberty
15 Oct 2020 | Contributor(s):: Ilya Shunko
test video
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A Manufacturing Sensitive Design Strategy for Composite Materials Using Physical Modeling and Stochastic Simulation of Defects
02 Oct 2020 | Contributor(s):: Ramesh Talreja
This presentation outlines a strategy for designing composite structures accounting for the presence of defects that are inevitable in a practical manufacturing process. The essential ingredients of the strategy are incorporation of defects in physical models for assessment of composite...
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Digital Disruption of Composites Manufacturing and Design
18 Sep 2020 | Online Presentations | Contributor(s):: Anoush Poursartip
Composite materials and structures are an excellent example of how engineering practice often outpaces scientific knowledge. Born in the analog world of the 1960s, carbon-fibre composites manufacturing and design practice is a complex and often fragile construct that is primarily driven by the...
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Global Composites Experts Webinar Series
12 Aug 2020 | Series
The webinars examine the history, present capabilities, and future of composites science and technology. The goal of the series is to accumulate the vast knowledge of composites that has been developed over the past 50 years and to make it available to the global composites community. Each...
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Charles Tucker Lecture Series on Orientation Modeling at Purdue University
18 Jun 2020 | Series | Contributor(s):: Charles Tucker
This series contains the 7-day lectures delivered by Prof. Charles Tucker for Composites Manufacturing and Simulation Center at Purdue University. Abstract Composites with discontinuous fibers are frequently processed by injection or compression molding, extrusion, 3-D printing,...
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SwiftComp Executable
01 Oct 2016 | Tools | Contributor(s):: Wenbin Yu
This is the SwiftComp executable which can be invoked by any tools on cdmHUB.
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Constitutive modeling for time- and temperature-dependent behavior of composites
08 Jan 2020 | Publications | Contributor(s):: Orzuri Rique, Xin Liu, Wenbin Yu, Byron Pipes
Structural integrity, durability, and thermal stability represent critical areas for adequately modeling the behavior of composite materials. Polymeric matrices are prone to have time-dependent behavior very sensitive to changes in temperature that influence the effective properties of the...