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  1. Adaptive Multi-Scale & Multi-Fidelity Progressive Failure Analysis of Composites

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    14 Nov 2022

    Although high-fidelity modeling of progressive damage has advanced our understanding of failure mechanisms in fibre-reinforced composites, such techniques are currently still too computationally intensive for direct application to composite structures. The multi-scale nature of damage in...

  2. Practical Developments in Multiscale Modeling of Composites

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    07 Apr 2021

    Validated models (be they data driven or physics based) can accelerate the design, certification, and ultimate deployment of novel materials and structures by allowing rapid iteration and virtual experimentation while at the same time minimizing the need for expensive and time consuming physical...

  3. MSC.Patran/Nastran-SwiftComp GUI

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    01 Apr 2019

    A graphical user interface (GUI) has been developed to integrate SwiftComp into MSC.Patran/Nastran for constitutive modeling and providing the automated conversion of the MSG plate and beam stiffness matrix into MSC.Nastran shell and beam element properties and materials. In order to reduce...

  4. Woven fabrics UMAT- a coupled material model

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    02 Aug 2017 | Contributor(s): Ali Roumani

    One of the advantages of woven fabrics over unidirectional prepregs is their superior formability thanks to the large shear deformation capability. There exists, however, a limit on the shear deformation of woven fabrics, namely the wrinkling. Applying tension to delay wrinkling during forming...

  5. Injection Overmolding Manufacturing Process Simulation

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    29 Jun 2017 | Online Presentations

    Injection over-molding or hybrid molding is a high-rate composites manufacturing process for fabrication of structural components with complex geometries.  The structural backbone is provided by a continuous-fiber woven prepreg while the geometric complexity is realized via injection...

  6. Orthotropic Stress Concentration Factor

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    25 Sep 2014 | Tools

    Calculates the stress concentration factor for a circular hole in an infinite orthotropic plate

  7. Demystifying Composites Simulation for Performance

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    15 Nov 2024 | Downloads | Contributor(s): Ali Roumani

    The presentation given in IACMI Tutorial session before the 2016 Summer Members Meeting. It tried to explain in layman terms modeling and simulation, and composites, pointed out the barriers we need to overcome to reap full benefits of simulation for composites innovation. 

  8. A Unified Theory for Constitutive Modeling of Composites

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    14 Aug 2014 | Publications

    A unified theory for multiscale constitutive modeling of composites is developed using the concept of structure genomes. Generalized from the concept of the representative volume element, a structure genome is defined as the smallest mathematical building block of a structure. Structure...

  9. 2015 cdmHUB Workshop

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    23 Jul 2014 | Series

    Composites Design, Analysis and Manufacturing Workshop held at Purdue University on November 3-5, 2015.  Both lectures slides and lecture videos are presented.

  10. 2015 cdmHUB Workshop

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    15 Nov 2024 | Series | Contributor(s): Ali Roumani

    Composites Design, Analysis and Manufacturing Workshop held at Purdue University on November 3-5, 2015.  Both lectures slides and lecture videos are presented.

  11. CATIA Composites Braiding

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    15 Nov 2024 | Animations | Contributor(s): Ali Roumani

    A tool developed with BMW for strong structural Composites parts. Composites braiding is for high output cylindrical parts with minimal waste.

  12. Structure Genome: Fill the Gap between Materials Genome and Structural Analysis

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    14 Aug 2014 | Publications

    A new concept, Structure Genome (SG), is proposed to fill the gap between materials genome and structural analysis. SG acts as the basic building block of the structure connecting materials to structures and the mechanics of SG governs the necessary information to link materials genome and...

  13. DiBenedetto Equation: Tg and DOC

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    23 Jul 2014 | Tools

    DiBenedetto Equation: Glass Transition Temperature Dependence on Degree of Cure

  14. The Mission, Vision and Programs of the Composites Design and Manufacturing HUB

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    25 Sep 2014 | Teaching Materials

    The presentation outlines the mission, vision and programs of the Composites Design and Manufacturing HUB as of October 2014.

  15. The Mission, Vision and Programs of the Composites Design and Manufacturing HUB

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    23 Jul 2014 | Teaching Materials

    The presentation outlines the mission, vision and programs of the Composites Design and Manufacturing HUB as of October 2014.

  16. Plane-Stress Compliance Transform

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    25 Sep 2014 | Tools

    Transforms 2D compliance terms by rotation about the 3-axis

  17. Composite Materials and Structures 1972-2012: Grand Challenges

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    23 Jul 2014 | Teaching Materials

    Professor R. Byron Pipes presents the Grand Challenges for Composite Materials for the next 40 years at the American Society of Composites Conference in Arlington, TX on October 2, 2012.