education

I have encountered a problem to calculate the stress at interfacial Guass point of each hexahedron element. Since the effective stress is needed to decide whether a cohesive element should be inserted when using the extrinsic cohesive element model, the stress at interfacial Guass point of each element is chosen to calculate effective stress. In the calculation process, the stress at Guass point of each hexaderon element can be obtained.Is there anyone who knows how to calculate the interfacial stress accurately? I would appreciate your comments.

Implementation of p-p Interactions in Molecular Dynamics Simulation

Submitted by Azadeh Sheidaei on Wed, 02/22/2012 - 04:26

Dear All,

I want to simulate polymer system that have pi-pi interaction between

chains and reinforcements. I know there is no implemention of pi-pi

interaction in lammps.

So, Is there another method to consider pi-pi interaction in lammps? or

I can't simulate these system by lammps.

Regards,

Azadeh

The root cause of strain rate sensitivity

Submitted by siwei on Sun, 02/19/2012 - 23:17

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Hi everyone:

We all know that materials may perform different strain rate sensitivity. Is there a root cause of this sensitivity?

how to model a 3D reinforced concrete model in ANSYS

Submitted by dipak_0639 on Sun, 02/19/2012 - 02:00

education

Hi everyone,

I am trying to model a 3D reinforced concrete beam in ANSYS. I got difficulties to put reinforcement in concrete. please help.

Thank you very much.

NSF Summer Institute Short Course on Materiomics @ MIT -- May 30-June 1, 2012

Submitted by Markus J. Buehler on Sat, 02/18/2012 - 11:28

NSF Summer Institute Short Course on Materiomics—Merging Biology and Engineering in Multiscale Structures and Materials

Poroelastic problems

Submitted by Alexandr Lyapin on Fri, 02/17/2012 - 04:52

education

elasticity

poroelasticity

fundamental solutions

boundary integral equations method

Hi everybody. My name is Alexander Lyapin. I am a second year postgraduate student of Southern Federal University, Russia, Rostov-on-Don, and I am working in the field of poroelasticity. The topic of my future dissertation is "Dynamic problems of poroelastic enviroments". The main problems in my dissertation are fundamental solutions and enviroments with cavities of common arbitary shape. I use different methods such as boundary integral equations method Fourie transformation method and some other.