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PhD student recruit (Composite materials, Korea)

Submitted by mekchu on
education
FEM
composite

It is pleasure to announce that there is an
opening for students who want to join a PhD course or combined master + PhD
course (Going to directly Ph.D. course without master thesis after B.S.) in
Department of Aerospace Engineering, GyeongsangNational University, South
Korea.

 

The successful candidate will do research
under the advise of Prof. Jin-Hwe Kweon in Structures and Composites Lab. Research areas include testing and finite element analysis of:

 

1. Composite Cylinder under hydrostatic
pressure,

draw mode shape with matlab

Submitted by hrbeu221 on
research

if M is your mass matrix and K is the stiffness matrix, use

[phi w2]=eig(K,M);

  phi contains the eigenvectors (each column is a modeshape)

 w2 is a diagonal matrix, each diagonal entry contains wn(i)^2

 (i.e. the i'th natural frequency squared).

Then how to draw the mode shape with eigenvectors?

 Thank you.

Overclosure and distortion

Submitted by vileez1 on
Overclosure and distortion problem

hi

I am doing a structural analysis in Abaqus

A pipe with side walls

Loadings are : Internal pressure , concentrated force on the wall and bending moment

The problem has to be solved such that the cylinder slides on the side walls.

 with internal pressure it works but when i bring the side force or moment there is an error massage of overclosure...

 I am not understanding what is it.

?

can any body help me.......

Delamination using cohesive interaction

Submitted by abhishekaran on
software

Hello,

Im trying to simlate delamination in abaqus and after going through the documentation i decided to go for the cohesive element approac. In the documentation it is mentioned that we use a general contact(explicit) for the interation but when i do that i am unable to use general, static step. So which step do i go for if i i want to simulate a static delamination ?

Define crack when using cohesive surfaces in abaqus

Submitted by abhishekaran on
software

Hello,

Im trying to model Delamination in abaqus using cohesive surfaces. I did the following :

-created a cohesive intertaction property, defined damage initialisation and evolution in this and then used general contact between 2 surface and used the interaction property for it.

-For the initial crack i left a certain region unbounded and used a double cantilever model.

PDF and PhD Positions at Simon Fraser University

Submitted by Nimal Rajapakse on
research

I am looking for a post-doctoral fellow and two PhD students. The research projects are concerned with electromechanical performance of PZT actuators in hydrogen-based fuel injectors (PDF), modeling of fuel cell membrane durability (one PhD) and nanoscale mechanics (one PhD). Interested applicants are asked to send their CV and transcripts to: Dr. Nimal Rajapakse, Dean, Faculty of Applied Sciences, Simon Fraser University, Burnaby, Canada.

Hassan Aref died this weekend

Submitted by Anonymous (not verified) on
mechanician

With deep sorrow we write to  convey the sad news that Hassan Aref has just passed away.  According to an email from Ishwar Puri, Head of the Department of Engineering Science and Mechanics, of Virginia Tech, Professor Hassan Aref went on an extended weekend visit to his home in Illinois on Thursday night.  He died there on Friday, sitting in his chair.

Extracting boundary conditions from output database (odb) file using ABAQUS scripting

Submitted by Suman.Guha on
ABAQUS
Boundary conditions
Python
scripting

Hi,

I am familiar with abaqus python scripting to create odb files and to extract nodal data from an output database (odb) file in ABAQUS. I would like to know whether it is possible at all, to extract the boundary conditions from an odb file. I guess that the boundary conditions are not stored in an odb file. But I am not sure. Any help in this regard ??

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