composite materials

Modelling of fiber failure in Abaqus

Submitted by parthchoksi on Sun, 07/01/2012 - 08:10

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Fracture Mechanics Forum

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Fiber Modelling of fiber failure in Abaqus ABAQUS, Fiber failure, failure criteria , Fiber Composite , composite I am presently working on modelling of fiber failure inof a composite lamina on ABAQUS. After researching a lot, Even after researching a lot, I haven't been able to find a damage criteria which can depict natural failure in of a fiber. I do not want to induce a crack in it and break it or put in a cohesive layer. I want to break it as it breaks naturally.

Postdoc and PhD positions at Arizona State University

Submitted by Yongming Liu on Tue, 05/08/2012 - 02:37

job

micromechanics

computational mechanics

Fatigue

composite materials

One postdoc and several PhD student positions are available at Arizona State University for fall 2012. Research background in at least one of the following areas is preferred.

1. Fatigue and fracture of materials and structures

2. Computational mechanics and micromechanics

3. Damage detection for composite materials

Determination of residual stresses by ESPI-HD method

Submitted by ViktorSavitsky on Fri, 05/04/2012 - 07:57

We have an equipment and technology for determination of residual stresses. They are based on the hole-drilling method and electron speckle
interferometry (ESPI-HD method).

New Release of General Purpose Micromechanics Code: VAMUCH 3.0

Submitted by Wenbin Yu on Sat, 02/11/2012 - 21:12

I am writing to let you know the release of VAMUCH 3.0, the 3rd version of our general-purpose micromechanics code. The main new features are:

VABS 3.6 Reduces Realistic Composite Blade Modeling to Seconds

Submitted by allanwood on Fri, 01/13/2012 - 23:45

software

analytical models

Constitutive modelling

variational techniques

WIND

AnalySwift, LLC, a leading provider of efficient high-fidelity modeling software for aerospace and energy composites and other advanced materials, announced today the release of VABS 3.6. This is the latest version of VABS, which is the tool of choice for efficient and accurate modeling of composite slender structures such as wind turbine blades, helicopter rotor blades, high aspect ratio wings, composite bridges, and other slender structural components.

WCCM 2012 - Mini symposium on Computational Damage Mechanics of Composite Materials

Submitted by malfano on Wed, 12/21/2011 - 15:58

conference

fracture

computational mechanics

damage

composite materials

I am co-organizing a mini-symposium on « Computational damage mechanics of composite materials » in the World Congress on Computational Mechanics (WCCM 2012) with Dr. Gilles Lubineau at King Abdullah University of Science and Technology (KAUST) and Dr. Glaucio H. Paulino at the University of Illinois at Urbana-Champaign.

Image-Based Simulation Workshop

Submitted by Simpleware on Tue, 10/18/2011 - 15:13

biomechanics

finite element analysis

composite materials

non destructive evaluation (NDE)

WORKSHOP: Image-based Simulation for Biomechanics, Materials Applications, and Reverse Engineering

This workshop is aimed at those interested in 3D reconstruction from radiology images, and in using 3D image data (as obtained from CT, Micro-CT, MRI and Ultrasound) to generate Rapid Prototyping, CAD, and Finite Element models.

Participants will learn:

• how to generate computer models from your 3D image data

• how to import and position CAD files in the image data

flexural rigidities of orthotropic composite laminates

Submitted by kaizen on Tue, 08/09/2011 - 12:47

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Materials Forum

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Dear all,

Iam working in composite orthotropic laminates consists of many plies having different material properties in each ply. How to determine or calculate the flexural rigidity (D) of this laminate by transforming these composite into an isotropic model. The idea is that flexural rigidity of the orthotropic laminate is being smeared into a single isotropic formulation.

For instance: if I have three plies:

Ply1 : D1x and D1y

Ply2: D2x and D2y

Ply3: D3x and D3y

energy balance of surface-based cohesive of composite under impact in Absqus 6-10

Submitted by moustachiio on Sun, 07/03/2011 - 21:58

Interface debonding; Size effect; Homogenization; Particulate composites; Constitutive equation

composite delamination

Hi there! I am really new to Abaqus and I need to model a composite
laminated crash cone under impact to a flat solid wall (analytical
surface is used). I modelled a cone with a layers of conventional shell
elements with hashin failure criteria and surface-based cohesive
behaviour as interaction between layers representing the interface of
composite laminates. The model runs successfully but once I checked the
energy balance, the damage dissipation energy from the cohesive, it
turned out to be NEGATIVE (I think this is wrong).