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  1. 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...

  2. Adaptive Sampling Assisted Surrogate Modeling of Initial Failure Envelopes of Composite Structures

    10 Nov 2020 | Contributor(s): Su Tian, Wenbin Yu

  3. 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...

  4. 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....

  5. Liberty

    15 Oct 2020 | Contributor(s): Ilya Shunko

    test video

  6. 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...

  7. 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...

  8. 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...

  9. 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,...

  10. SwiftComp Executable

    01 Oct 2016 | Tools | Contributor(s): Wenbin Yu

    This is the SwiftComp executable which can be invoked by any tools on cdmHUB.

  11. 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...

  12. Ove Schuett Dassault Systemes Americas CDM Hub

    18 Jul 2019 | Online Presentations | Contributor(s): Michael Texeira

  13. Simulation of prepreg platelet compression molding: Method and orientation validation

    18 Jul 2019 | Publications | Contributor(s): Sergey Kravchenko

    Prepreg platelet molding compounds (PPMCs) offer improved performance potential as compared to short-fiber composites and increased geometrical complexity as compared to continuous fiber composites. The increased adoption of PPMCs in automotive and aerospace applications necessitates the...

  14. Fiber orientation measurement from mesoscale CT scans of prepreg platelet molded composites

    18 Jul 2019 | Publications | Contributor(s): Sergey Kravchenko

    X-ray computed tomography (CT) analysis is used to measure the heterogeneous fiber orientation fields in a 20 cm3 composite bracket made from prepreg platelet-based molding compound (PPMC). The as-molded mesostructure of the complete geometry is captured using...

  15. Tensile Properties of a Stochastic Prepreg Platelet Molded Composite

    17 Jul 2019 | Publications | Contributor(s): Sergey Kravchenko, Drew Sommer, Benjamin Denos, Tony Favaloro, Byron Pipes, William Avery, Clark Tow

    The stochastic prepreg platelet molded composite (PPMC) occurs when the orientation and arrangement disorder of platelets are determined by the uncontrolled molding conditions. The understanding of composite structure-property relationship is essential for the engineering applications of PPMCs....

  16. Structure-property relationship for a prepreg platelet molded composite with engineered meso-morphology

    17 Jul 2019 | Publications | Contributor(s): Sergey Kravchenko, Drew Sommer, Benjamin Denos, William Avery, Byron Pipes

    The objective of this work was to develop a finite-element based computational model to investigate the complex three-dimensional load transfer from the known meso-structure of a prepreg platelet molded composite (PPMC) system with a layered planar morphology and...

  17. Uniaxial strength of a composite array of overlaid and aligned prepreg platelets

    17 Jul 2019 | Publications | Contributor(s): Sergey Kravchenko, Drew Sommer, Byron Pipes

    The tensile strength of a discontinuous composite system consisting of aligned, unidirectional prepreg platelets is predicted by performing progressive damage analyses in a periodic representative volume element. Interlaminar and in-plane damage mechanisms are combined to...

  18. Structure-property relationship for a prepreg platelet molded composite with engineered meso-morphology

    17 Jul 2019 | Publications | Contributor(s): Sergey Kravchenko, Drew Sommer, Benjamin Denos, William Avery, Byron Pipes

    The objective of this work was to develop a finite-element based computational model to investigate the complex three-dimensional load transfer from the known meso-structure of a prepreg platelet molded composite (PPMC) system with a layered planar morphology and...

  19. MSG-based Multiscale Modeling for Beams

    05 Jul 2019 | Downloads | Contributor(s): Wenbin Yu

    Presentation given in Summer 2019 at Wuhan University of Technology. 

  20. Data: Physics-informed artificial neural network approach for axial compression buckling analysis of thin-walled cylinder

    20 Jun 2019 | Publications | Contributor(s): Fei Tao

    Buckling leads the failure of thin-walled cylinders under axial compression. Due to the manufacturing imperfection, a significant variation was observed between experimental and theoretical buckling load. The current design criteria use knockdown factor to estimate the buckling of thin-walled...