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Material Properties on Different Elements with Common Node

Submitted by shrimad on
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Hi,

 

I am having a conceptual doubt regarding the following case. Any suggestions are appreciated. We are here assuming linear elastic material.

 

 Let's say I have two bodies with different properties, and they share a common node (as in the attachment). However, I want to perform an analysis without any coupling or contact phenomena. Let's say thermal expansion of the bodies.So while doing the FEA analysis, I can assign the material properties in the element stiffness according to the body elements and solve.

 

free autoCAD software compatible with Abaqus ?

Submitted by Yasheng Chen on
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Dear all,

 I need a free autoCAD software to model the complex 3D geometry of human brain.  It is desirable that this software should generate output files readable to Abaqus/CAE for mesh generation.  I wonder whether these is such a software available.  An alternative way is to handle the geometrical modeling myself but I need to know the details of the file format used by Abaqus/CAE.  Does anyone have a clue?

Thank you very much!

Yasheng

Trouble with linear elastic theory of strength

Submitted by Zhigang Suo on

A body is subject to a load. What is the magnitude of the load that will cause the body to fracture? Let us begin with a body made of a glass, which deforms elastically by small strains. A procedure you have been taught before probably goes as follows. You first determine the maximum stress in the body. You then determine the strength of the material. The body is supposed to fracture when the maximum stress in the body reaches the strength of the material.

Critical Experimental and Theoretical Tests for Failure Criteria

Submitted by Richard M. Chr… on

 A new section has been added to the website http://www.failurecriteria.com/.  This is on critical tests for failure criteria.  It summarizes most of the previous entries to the website and provides evaluations of the most salient of the failure criteria by comparing with high quality experimental data.