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damage evolution

Submitted by hale on

Hi, everybody,

I am new in modeling of damage initiation and evolution. my job is modeling damage evolution during castingrion deformation which includes two phases: matrix and graphite. Now I developed a 2D plane strain model and trie to model damage evolution. however, when I defined the damage criterion in material propertis under ABAQUS 6.10 and submitted job, the following error occurs:   

Method for Simulation of Universal Joint

Submitted by Prahel on
FEM
splines
universal joint

Hello Everyone,

I have to simulate and find the pressure on the splines in the universal joint. I have to define contact surface and to find a simple method to run analysis on this joint. I am finding it very difficult to select all the surface on every spline. Also, it will make the simulation very big.

Could anyone please help me to find a method or an easy way out. Any kind of suggestions are most welcome.

 Regards

Prahel 

regarding Microstructure analysis in ABAQUS

Submitted by deepumaj on
research
Plasticity
anisotropy
euler angle
orient

Hi all,

 I am doing microstructure analysis in 3D. To implement anisotropy, i need to give the orientation data. Does anyone know, how to give the orientation in ABAQUS?

The data i have in hand is Euler Angles... Can i give the data manually for four of five grains?

Also, please tell me about the ORIENT subroutine in ABAQUS... 

Charge localization instability in a highly deformable dielectric elastomer

Submitted by tongqing.lu on
research
electromechanical instability
dielectric elastomer
localization

A highly deformable capacitor made of a soft dielectric and two conformal

electrodes can switch between two states discontinuously, by a first-order transition, as the total

charge varies gradually. When the total charge is small, it spreads evenly over the area of the

capacitor, and the capacitor deforms homogeneously. When the total charge is large, it localizes in

a small region of the capacitor, and this region thins down preferentially. The capacitor will

How to get nodes from a list of nodelabel in abaqus

Submitted by Aswathi Sudhir on
ABAQUS
pythonscripting

 Hi everyone,

I am a working on a cube in abaqus. I had to remove some nodes from the face node sets. To be specific edge nodes. I have defined a function in such a way that after removing them what I have is a list of node labels. I am scripting in python. Can anyone help me in extracting nodes back from nodelabels? 

Or is there any better way to remove some nodes from nodelist and get the modified nodelist ? 

Thanks 

Why am I getting a messy signal FFT instead of a smooth one?

Submitted by r_1159 on
research

Hi

I am doing wave simulation on plates with various damages. Guided sinusoidal waves are generated and scattered throughout the plate. To compare the results I am getting FFt of displacement (frequency domain). The one without damage gives me a very smooth FFT while the ones with damage give me a messy FFT ( Please see the attached photo). Is it something to do with filtering or is any thing wrong with my results ?

 

Damages model

http://oi42.tinypic.com/zo6ty9.jpg



Undamaged model

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