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Hi, Everyone,

A postdoctoral research position is available at the Earth Sciences Institute, at the Hebrew University, Jerusalem, Israel, focusing on understanding basic processes of submarine landslide triggering, with applications to the Eastern Mediterranean Sea, offshore Israel. The work will involve numerical and/or physical modeling, analyzing the mechanisms of submarine slope-failure. Applicants should send their CV and intention letter including names of 3 referees, directly to the PIs: Prof.

Hi All,

I want to model underground circular pipe embedded inside ground/earth for transient structural analysis in ANSYS Classic.

I am using shell element for pipe structures. To represent surrounding ground/earth,

I want to use Springs of appropriate stiffness on outer periphery of pipe structures.

Can anybody guide/help how to represent this springs? Which element to use in ANSYS Classic.

Or can somebody show me any another way of solving this problem.

Thankyou,

While reading the article

"An alternative approach to finite plasticity based on material isomorphisms " (1999) by Prof. Bertram, the first thing that attracted my attention was the quote [by Prof. Naghdi (late)]:

 “there is some degree of disagreements on nearly all of the main constitutive ingredients and features of plasticity in the presence of finite deformation... Some of the issues of disagreements are of basic and fundamental importance.”

I am trying to model flexure of a material with softening stress-strain response. How can I model that! I know Abaqus can not handle negative tangent modulus. And, how do I simulate damage in the beam!

Any help/suggestion is highly appreciated!

Hi, everybody. I recently do some reserch on MLPG using in 3D problems, and I have modified the program in G.R. Liu's book.

But what makes me crazy is that I  must  always run the program many times to idenetifiy the proper quardrature sub-domain size to get the right result.

So I confused here, then I did a comparision of the various sub-domain size to examinate the effect of them in G.R. Liu's MLPG2D program. This time, sub-domain size seems have liittle effect on the result. I tried 0.1*nodalspace situation, and results has a about 20% error.

Dear All:

Greetings. I’m Dr. Md Ershadul Alam, got PhD from National University of Singapore (NUS) in Materials Science of Mechanical Engineering Department in 2010. Currently I’m working at Qatar University, Qatar in a collaborative project (with NUS) titled: “Development of Lightweight Magnesium based nanocomposites”.

Hi,

I'm presently working on implementing anisotropic yield criteria in LSDYNA as UMAT.

I understand from the LSDYNA documents that effective plastic strain is a default history variable.  So when we code, can we omit the update of effective plastic strain as a history variable? If so, where is it stored and how is it retrieved during post-processing ?

Hi,

I'm presently working on implementing anisotropic yield criteria in LSDYNA as UMAT.

I understand from the LSDYNA documents that effective plastic strain is a default history variable.  So when we code, can we omit the update of effective plastic strain as a history variable? If so, where is it stored and how is it retrieved during post-processing ?

Hi everyone,

I’m looking for a postdoc in mechanics of granular materials.

Hello, I am trying to solve structural problem of loaded pipe structure in ANSYS.

I tried two method/way.

First I modelled pipe structure as BEAM element and defined the cross-section.

Secondly, I modelled the pipe structure as Shell element and defined thickness. 

Now during post-processing, I noticed very large deviation in shear force, axial force and bending moment (nearly 3 times more in BEAM model cmpr to SHELL model) 

Can anybody guide/help to rectify model and bring this deviation down? I dont want to go for Pipe element of ANSYS.

Hello Abaqus Users,

I need to plot deflection (U3) along y axis when x = 0. How to achieve this in Abaqus?

Thanks and Regards,

Somu