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...

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...

MSG-based Multiscale Modeling for Beams

05 Jul 2019 | Downloads | Contributor(s): Gerhard Klimeck

Presentation given in Summer 2019 at Wuhan University of Technology. 

MSC.Patran/Nastran-SwiftComp GUI

01 Apr 2019 | Downloads

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...

Woven fabrics UMAT- a coupled material model

02 Aug 2017 | Downloads | 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...

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

06 Jan 2017 | Downloads

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. 

Demystifying Composites Simulation for Performance

28 Jul 2016 | 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. 

A Unified Theory for Constitutive Modeling of Composites

18 Apr 2016 | 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...

2015 cdmHUB Workshop

05 Jan 2016 | Series

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

2015 cdmHUB Workshop

05 Jan 2016 | 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.

ANSYS-VABS Graphic User Interface (GUI)

03 Aug 2015 | Downloads | Contributor(s): Gerhard Klimeck

This resource contains the release package of ANSYS-VABS GUI.VABS code is NOT included. Manual and the source scripts for the interface can be found in the Supporting Documents.This GUI was developed based on ANSYS Release...

CATIA Composites Braiding

09 Mar 2015 | 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.

NAFEMS Invitation to Tender: How to Obtain Material Properties for Structural Analysis of Composites

13 Feb 2015 | White Papers/Research Documents

The NAFEMS Composites Working Group wishes to commission a new document with the suggested title "How to Obtain Material Properties for Structural Analysis of Composites". The book will be a companion volume to the existing NAFEMS publications "An introduction to the use of material models in...

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

29 Nov 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...

2013 Composites Design and Manufacturing HUB Kickoff Workshop

04 Sep 2014 | Series

The Composites Design and Manufacturing HUB held a kick-off workshop at Purdue University on May 29-30, 2013 with over 100 attendees from industry, academia and government.  Select presentations from the workshop are included in this series.

PostGEBT

15 Aug 2014 | Downloads | Contributor(s): Gerhard Klimeck

PostGEBT is a post-processing code which can effectively visualize mass data generated by the nonlinear beam solver GEBT. PostGEBT reads and visualizes the results produced by GEBT for static, steady-state, transient dynamic, and eigenvalue analyses. More details can be found in the PostGEBT...

Geometrically Exact Beam Theory

30 May 2014 | Tools | Contributor(s): Gerhard Klimeck

A General-Purpose Nonlinear Analysis Tool for Composite Beams Considering All Elastic Couplings

Geometrically Exact Beam Theory

11 Jul 2014 | Downloads | Contributor(s): Gerhard Klimeck

Geometrically Exact Beam Theory (GEBT), is a general-purpose tool for nonlinear analysis of composite slender structures, meeting the design challenges associated with future engineering systems featuring highly-flexible slender structures made of composites. GEBT is based on the mixed...