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  1. Composite Stiffness Property Prediction

    07 Aug 2017

    Micromechanical models for the composite axial tensile, transverse tensile, and axial shear are combined into one tool with the objective of comparing their effectiveness as property prediction methods.  Rule of mixtures models (ROM) and the composite cylinder model (CCM) results for...

  2. Woven fabrics UMAT- a coupled material model

    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...

  3. Finite element unit cell model based on ABAQUS for fiber reinforced composites

    26 Jul 2017

  4. Micromechanical investigations of polymer matrix composites with shape memory alloy reinforcement

    18 Jul 2017

  5. Numerical characterization of effective fully coupled thermo-electro-magneto-viscoelastic-plastic response of smart composites

    18 Jul 2017

  6. Computational evaluation of effective stress relaxation behavior of polymer composites

    11 Jul 2017

    This paper presents a micromechanics model to characterize the effective stress relaxationstiffness of polymer composites. The linear viscoelastic behavior of polymer material wasmodeled by hereditary integral. The proposed model was established based on thevariational asymptotic method for unit...

  7. MUL2-UC Beam modeling of periodically heterogeneous composites

    13 Jun 2017

    The micromechanics code MUL2-UC is developed to work as an efficient and high-fidelity tool for the computation of the effective stiffness matrix and the recovering of the local fields of periodically heterogeneous composite structures. The main novelty is that higher-order beam theories are...

  8. VABS: Powering Simple Beam Elements with Detailed 3D FEA Fidelity

    06 Jan 2017

    This presentation gives a brief introduction to VABS, a general-purpose cross-sectional analysis, which can power conventional, simple beam elements with detailed 3D FEA fidelity. 

  9. Orthotropic Stress Concentration Factor

    25 Sep 2014 | Tools

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

  10. Demystifying Composites Simulation for Performance

    16 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. 

  11. Mechanics of Structure Genome: Fill the Gap between Materials Genome and Structural Analysis

    10 Oct 2013 | Downloads

    This is the presentation given as a Purdue Solid Mechanics Seminar on 5/18/2016. It summarizes the most recent devleopments up to the time of presentation. 

  12. 2015 cdmHUB Workshop

    10 Oct 2013 | Series

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

  13. 2015 cdmHUB Workshop

    16 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.

  14. Presentation of Micromechanics Simulation Challenge Level I Initial Results

    10 Oct 2013 | Downloads

    The attached slides summarize the Micromechanics Simulation Challenge Level I Initial Results in a presentation format. The complete report can be found at https://cdmhub.org/resources/948, and all the files supporting the results can be found...

  15. Skill of Using Surface Element in ANSYS

    10 Oct 2013 | Downloads

    Dear All, For those ANSYS users, please check the attached skill of using surface element, “Surface_Effect_Elements.pdf”, to apply the surface tangent traction. It works well for homogenization simulations, and also for some beams structure validations. This attached zip file also...

  16. CATIA Composites Braiding

    16 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.

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

    10 Oct 2013 | 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...

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

    25 Sep 2014 | Teaching Materials

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

  19. Plane-Stress Compliance Transform

    25 Sep 2014 | Tools

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

  20. Effective Lamina and Laminate Properties

    10 Oct 2013 | Tools

    Calculate effective lamina and laminate properties from phase properties and layup.