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How to solve global stiffness problem using FEA in Ansys?

Submitted by phamduyhai0201 on
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 HI EVERY BODY!
 
      I'm studying about composite pressure vessel type 3 (that 's with liner inside) . I use Ansys to simulate my object, but i have a problem, i can't solve stress and strain for Solid64 (global stiffness). I don't know how can combine Matlab with Ansys to solve that problem.
 
      I hope some one have some experience in this field can help me. May be show me some simple example how to solve that problem.  

swiching Nodal Result output to Integration Points in ANSYS

Submitted by saeedspace on
research

Hi every body

i modeled a plane with a notch with elastic-perfect plastic material. somewhere in model the stress reaches above the yield stress

so i think the reason is that ANSYS reports the nodal result output by default wish they interpolated from integration points results.

i want to see the integration points results but i dont know where to finde them.

Shape memory alloy

Submitted by adi_rvce on

In shape memory alloy, Recovery strain is the strain at the start of the martensite to austenite transformation to finish of the same transformation.if we assume the material is initially in the austenite state. is it right about wat i thought about recovery strain???

 

Help with curved specimen and mechanical loading

Submitted by tom_biomech on
research
Background:

Rib fractures in infants are highly suggestive of child abuse. I am performing mechanical testing and finite element analysis on pig ribs with the aim of characterising the behaviour of ribs under anterior-posterior (from end to end rather from the side) loading.



Help needed:


Large electric field induced strains in ferroelectric islands

Submitted by jzz108 on
research

An effective mechanism that generates large recoverable electric field induced strains in ferroelectric islands is studied by phase-field modeling. The large strains originate from the reversible 90° domain switching between a1 (a2) domains and c domains, driven by an applied electric field and an internal stress field. The electric field induced strains could be effectively controlled by the magnitude of island-substrate misfit and the aspect ratio of islands.

The paper could be download in the following link:

Is peridynamics a superset of Continuum Mechanics?

Submitted by Mario Juha on
opinion
fracture mechanics
continuum mechanics
peridynamics

Recently, I have found a new theory, called Peridynamics, used to solve, mainly, fracture mechanics problems in materials. But, I am confused about the issue if it is a superset of continuum mechanics or is it a totally new theory that reformulate our previous understanding of continuum mechanics? How do you measure material properties with this theory? Do we need to reformulate our theories to deal with fracture mechanics problems? Is it a totally accepted scientific theory?

 

cordially,

 

Mario J. Juha

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