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The Society of Engineering Science Establishes the James R. Rice Medal

Submitted by Society of Eng… on
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Award

On behalf of the 2015 Board of Directors of the Society of Engineering Science (SES), I am pleased to announce the establishment of a new SES award: The James R. Rice Medal. The creation of the new award is motivated by the recognition that while several societies, including the SES, have young-investigator awards as well as others that primarily (although not exclusively) target senior scientists, there are relatively few that are suitable for those who are in the typical mid-career age of 40-55. The award, named after Professor James R.

Strain calculation in ABAQUS

Submitted by cclemen on
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strain
ABAQUS
linear elastic

Hello,

I have some troubles in calculating the strain in ABAQUS. I have the following Model with one element (see picture) and a linear elastic isotropic Material (Steel), which is sheared in the x-direction. The analytical result of the strain tensor gives me in xz-direction 0.25 (see picture). The result in ABAQUS is 0.5. I ran the same simulation in CalculiX CrunchiX and got the expected strain of 0.25 in the xz-direction

Can anyone tell me how ABAQUS calculates the strain for a linear static analysis? Why is the ABAQUS result exactly 50% higher?

State of the Art - Novel InFlow Tech - Featured Project Development; 1-Gearturbine, 2-Imploturbocompressor

Submitted by retrodynamic on
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1-GEARTURBINE PROJECT

Rotary-Turbo-InFlow Tech

Atypical InFlow Thermodynamic

Technology Proposal Submission

Novel Fueled Motor Engine Type

*State of the art Innovative concept Top system Higher efficient percent.*Power by bar, for Air-Planes, Sea-Boats, Land-Transport & Dynamic Power-Plant Generation.

-Have similar system of the Aeolipile Heron Steam device from Alexandria 10-70 AD. -New Form-Function Motor-Engine Device. Next Step, Epic Design Change, Broken-Seal Revelation. -Desirable Power-Plant Innovation.

Abaqus DISP Subroutine

Submitted by SavanRGowda on
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Abaqus 6.12
Abaqus/Fortran
DISP
abaqus subroutine

Hi everyone!! 

I am a student studying in Hamburg University of Technology. I am currently doing my thesis and want some help in finishing it. I am finding it a bit difficult to do subroutine in Fortran as I am new to it. I have tried learning from Abaqus Documentation but I didn't get answer to my needs. 

I already have a text file that contains Nodes, X,Y,Z coordinates and the displacement values to be assigned. 
For Example: Nodes  X_coord  Y_coord  Z_coord  U 

Details about hydrogel mechanical test

Submitted by Linlin Cao on
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Dear all,

I have some questions about hydrogel mechanical test. After curing, should i put samples in water (submerge in water) or not? I found there's big difference between same samples with different water content. Also, I can't get the tentile strength similar with literature with same materials. My tensile stress is more than 10 times smaller. I really don't know what did I miss.

I would greatly appreciate any help. Thank you!

 

JAM Special Issue on New Frontiers in the Mechanics of Materials

Submitted by benzerga on
mechanician
void growth
Crystal plasticity
discrete dislocations
computatinal solid mechanics
 
A meeting was held in Paris last summer on the occasion of Prof. Alan Needleman’s 70th birthday
 
 
The corresponding special issue in the Journal of Applied Mechanics is now online

Potential surface and yield surface

Submitted by shivanirani on
mechanician
Plasticity

Hello,

Would you please tell me the basic difference between potential plastic surface and yield surface with a physical meaning, if possible. I know that if both the surfaces match, then it is associated flow-rule, otherwise it is a non-associative flow rule.

I know that this is a very basic question, but I am facing difficulty in completely understanding it.

 

Thanks in advance.

-Shivani

[Help] How to define a variation of volume during a phase change in Abaqus?

Submitted by qieasa on
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ABAQUS

Dear friends,

I am a beginner in using Abaqus. Now I am doing a project which calls for a simulation of the phase change probleme (two demensional Stephan problem).

I did a simple simulation with water, more prescisely a water slab of 10 C at the left I impose a temperature -10 C, so I got the results of the profils of temperature in every increment of time. 

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