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Doctorate student position in Mechanical Engineering - Lamar University, Texas, USA

Submitted by ali_beheshti1 on
job

A Doctorate of Engineering (DE) student positions is available for Summer/Fall 2016 in Mechanical Engineering. The applicants are required to have master degree. The positions are directed by Multiscale Contact Mechanics and Tribology Laboratory and Optoelectronic Laboratory at Lamar University, Beaumont, TX, USA. Interested applicants may find more information at http://engineering.lamar.edu/mechanical/ and are encouraged to apply ASAP. 

Conversion to particles formulation (SPH) using user subroutine–based criterion

Submitted by Alessandro Abena on

Hello to everybody,

I wrote a VUMAT subroutine for a linear elastic orthotropic material.

In it I defined a state variable controlling the element conversion. When the condition for the conversion is satisfied, the SDV variable is set to be zero.

The subroutine works fine until the conversion criterion is reached. When that happens I get the following error: Abaqus Error: The executable explicit_dp.exe aborted with system error code 1073741819.

Problem in understanding table in VUHARD

Submitted by abhime07 on
research

 Hello all,

I am trying to write damage model using isotropic hardening given in Abaqus example. But in VUHARD section some table is given like "syield=table(1, nvalue)" and eqpl1=table(2,k1+1). I dont understand what does it mean and where to put these values? If anyone can explain, it will be a great help.

Thanks 

Abhishek

Simple Physics concepts

Submitted by BOBBY RENJAN MATHEW on
education

Hello......

    I have a small doubt. It may feel silly, but please reply.. 

   Suppose I have a pendulum and it is impacting onto a structure. The mass of pendulum is 'm' and the intiial velocity is 'v'. The condition is that the KE at the time of impact should be 'E'. E= 0.5*m*v2 . 

  Now i change the mass of the pendulum to m1 correspondingly velocity should be changed to v1 so that E1=E.

 Now i need to compare the force transmitted to the structure. F = ma. 

Molecular dynamics modeling of NiTi superelasticity in presence of nanoprecipitates

Submitted by Piyas Chowdhury on
research

The presence of nano-sized coherent precipitates is well known to have crucial impact on the mechanical behaviors of a broad class of shape memory alloys. The local stress gradient at the matrix-precipitate interface is predicted as induced by inter-lattice atomic disregistry. Due to the presence of the local disturbance fields, the preference for activating different martensitic variants, given the uni-directionality thereof, is influenced substantially.

7th Summer School on Biomechanics of Soft Tissues: Multiscale Modeling, Simulation and Applications

Submitted by Gerhard Holzapfel on
conference

7th Summer School on Biomechanics of Soft Tissues: Multiscale Modeling, Simulation and Applications
Graz University of Technology, Austria
July 4 - 8, 2016

coordinated by:
Gerhard A. Holzapfel, Graz University of Technology, Austria
Ray W. Ogden, University of Glasgow, UK

7th Summer School on Biomechanics of Soft Tissues: Multiscale Modeling, Simulation and Applications

Submitted by Gerhard Holzapfel on
education
biomechanics
summer school

7th Summer School on Biomechanics of Soft Tissues: Multiscale Modeling, Simulation and Applications
Graz University of Technology, Austria
July 4 - 8, 2016

coordinated by:
Gerhard A. Holzapfel, Graz University of Technology, Austria
Ray W. Ogden, University of Glasgow, UK

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