I am carrying out spring back analysis using LS-dyna and hyperform. The procedure as follows: forming is carried  using LS-dyna and then the spring back  is included in to the result file using hyperform and .k files are created using hyperform itself. While running the analysis, after certain number of iterations, the analysis aborts with message equilibrium can’t be achieved.  I have included the both the input files (with and without spring back).

Please point out what could be the mistakes inthe input file and advice me for any additional inputs.

Hi All,

I am analysing a fiber composite solid plate with a large and small holes. The model is meshed with C3D8R elements. The output has U and RF in global CSYS and S, E in local CSYS. I have problem in reading  S and E written in local CSYS. I know it is very simple, but I cant able to figure it out. Those who know, how to read the S and E in local CSYS, please help me. Tks in advance for your time and advice.

Regrads

Jacob 

Hello Everybody,

As researcher, eventhough we know all the theoretical background of our research, some time it is really very difficult task to write an attractive research proposal. Is there any standard format to write a proposal? Your advice may be helpful to few of the research guys like me.

Jacob

Dear All 

Williams analysis is well known for stress singularity. Actually when we are analysing the stress distributions between two diffrent configuration which is given below ,based on the stress singularity, I got a doubt...how the order of stress singularity is directly related with the stress. (we can get the relationship using equation) however if i want to explain to a student who never come across with applied mechanics. How can we explain to him in very simple and understandable manner.   

 If any one can define the relationship between the order of stress singularity with the stress tensor

1. At the crack edge

2. At the contact edge 

I am new to parralel computing and trying learn basic. wat are the languages can we use for coding in parallel computing. Can any one give me an example for this. Any resource link will do?

Tks in advance

I want to get the stress value in the roller of a hot/cold worked plate. Both the roller and the plate are defrormable 2D shell model. The change in the thickness of the plate is 0.05mm once the plate  passes throguh the rolees.I am trying to use dynamic explicitt in the step process. PLease advice me wat are the other factors i have to input for the dynamic explicit process. I am having some more input for the roller and the plate velocity.

Please advice me or just ask me for further input. Thanks for your mehaniciams feed back.

Jacob