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Adaptive Multi-Scale & Multi-Fidelity Progressive Failure Analysis of Composites
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...
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Practical Developments in Multiscale Modeling of Composites
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...
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MSC.Patran/Nastran-SwiftComp GUI
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...
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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...
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Injection Overmolding Manufacturing Process Simulation
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...
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TexGen4SC Tutorial #1: Homogenization Analysis of Textile Composites with Arbitrary Inter-ply Shifts
03 Jan 2017 | Downloads
This tutorial shows how to use TexGen4SC to perform homogenization analysis of textile composites with arbitrary inter-ply shifts. A companion video is available on YouTube. TexGen4SC can be launched directly from https://cdmhub.org/tools/texgen4sc. A python script for the...
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TexGen4SC
14 Feb 2014 | Tools
Modeling of woven fabric composites generated by TexGen using SwiftComp
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Demystifying Composites Simulation for Performance
27 Aug 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.
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A Unified Theory for Constitutive Modeling of Composites
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...
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2015 cdmHUB Workshop
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.
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2015 cdmHUB Workshop
14 Feb 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.
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2015 cdmHUB Workshop
27 Aug 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.
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Skill of Using Surface Element in ANSYS
14 Feb 2014 | 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...
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CATIA Composites Braiding
27 Aug 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.
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Structure Genome: Fill the Gap between Materials Genome and Structural Analysis
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...
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DiBenedetto Equation: Tg and DOC
23 Jul 2014 | Tools
DiBenedetto Equation: Glass Transition Temperature Dependence on Degree of Cure
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The Mission, Vision and Programs of the Composites Design and Manufacturing HUB
23 Jul 2014 | Teaching Materials
The presentation outlines the mission, vision and programs of the Composites Design and Manufacturing HUB as of October 2014.
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Composite Materials and Structures 1972-2012: Grand Challenges
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.
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Effective Lamina and Laminate Properties
14 Feb 2014 | Tools
Calculate effective lamina and laminate properties from phase properties and layup.
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Halpin-Tsai Micromechanics Model
14 Feb 2014 | Tools
Calculate homogenized lamina properties from fiber and matrix properties