VABS: Modeling Composite Beam-like Structures with 3D FEA Fidelity

06 Feb 2021 | Contributor(s): Nikki Huang

This presentation was given at Altair Virtual ATCx Composites: https://atcxcomposites.virtual.altair.com/. Variational asymptotic beam section (VABS) is a unique technology continuously funded by the US Army since 1988 and it has become a tool of choice in the helicopter and wind turbine...

iVABS

19 Nov 2020 | Contributor(s): Nikki Huang

iVABS (namely integrated VABS), is a design framework for composite slender structures (also called composite beams) such as helicopter rotor blades, wind turbine blades, high aspect ratio wings, bridges, shafts, etc. This framework bundles PreVABS, VABS, GEBT, Dakota, along with msgpi for...

PreVABS

16 Nov 2017 | Contributor(s): Nikki Huang

PreVABS is a pre-processing tool for VABS and SwiftComp. This tool is designed to reduce the workload of preparing input files of beam cross sections for VABS and SwiftComp, and to make the process automatic for the design and optimization purpose. Cross sections with general and...

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...

Puck Failure Criteria

31 Jul 2017

Composite materials have been established as competitive materials during the last few decades due to their high strength to l ow weight ratio among other advantages and are widely used in many industries. A recent study has found that the industrial usage of composite failure...

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

26 Jul 2017

Micromechanical investigations of polymer matrix composites with shape memory alloy reinforcement

18 Jul 2017

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

18 Jul 2017

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...

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...

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. 

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

06 Jan 2017 | Contributor(s): Nikki Huang

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. 

TexGen4SC Tutorial #1: Homogenization Analysis of Textile Composites with Arbitrary Inter-ply Shifts

03 Jan 2017

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...

TexGen4SC

14 Feb 2014 | Tools

Modeling of woven fabric composites generated by TexGen using SwiftComp

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. 

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.

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.

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...

ANSYS-VABS Graphic User Interface (GUI)

03 Aug 2015 | Downloads | Contributor(s): Nikki Huang

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...

ABAQUS-VABS GUI

29 Jun 2015 | Downloads | Contributor(s): Nikki Huang

A Python script used to convert the input file generated by ABAQUS for VABS, a detailed step-by-step instruction using ABAQUS CAE to generate a simple beam section (composite anisotropic pipe)  is also given. Python scripts for generating more complex sections such as real...