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Is there any computing module which can compute a heap of disk elements in...

researchresearch in DEMIs there any computing module which can compute a heap of disk elements in DEM(discrete element method)?it'd be better if it is written in matlab or C/C++. I'm doing research on...

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the DEM's solutions for static mechanics seem strange

researchstaticsdiscrete element methodDEMdistinct element methodMy own DEM(Discrete Element Method) program's solution for static problem seems strange.I use my program to calculate the displacement of...

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Solve 2d diffusion equation

HOW to solve this 2D diffusion equation?the problem described by these equations is: at time=0, N particles are dropped onto an infinite plane to diffuse. C(r,t) represents the concentration density of...

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Is there any paper/books on the basic idea of crystal plasticity?

researchThe development of Crystal plasticity?what are the books/papers that give the basic idea about dislocation-crystal plasticity theory?

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fem code for plasticity theory?

educationIs there any available fem source code for plasticity theory? Thanks alot!

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How to perform surface boundary integration in elasticity fem?

researchThis is a basic question regard to elsticity fem.How to compute traction boundary integration numerically in elasticity fem under general situation? That is:\int_{\Gamma} [N][t] d\Gamma,   here...

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Is two point tensor a REAL tensor?

Two-point tensor appears in some of continnuum mechanics reference books.1. In wikipedia, two-point tensor is interperated as:" Two-point tensors, or double vectors, are tensor-like quantities which...

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What is the best way to numerically solve hyperbolic equation?

research What is the best way to numerically solve the transport equation like(the least numerical diffusion phenomenon): df/dt+v df/dx=0  Thank you  

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What is the best method now to solve advection equation?

researchI am solving the advection equation which is hyperbolic. Some basic techniques (shown on the page  http://www.cse.illinois.edu/iem/pde/discadvc/) are either of large oscillation or numerical...

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software for eigenstrain problem

researcheigenstrainfem codefem software Hi,  Is there some fem code or software that can handle eigenstrain while solving equilibrium equation?  Thanks!    

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PBC implementation in equilibrium equation

researchFinite Element MethodFEMequilibrium e.q.periodical boundary conditionHi, guys, Do some of you know how Periodical Boundary Condition is implemented in equilibrium equation while using FEM:div{...

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What is exactly the 'pressure' of a solid in thermodynamics?

Most literatures on thermodynamics are written or started with the language of 'ideal gas'.This confuses me a lot when I switch to consider solids. For example, the enthalpy of a systemis defined as H...

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Input variables used in Abaqus UMAT: STRAN, STRESS and DSTRAN

I wonder the mathematical expressions for the variables: STRAN, STRESS, and DSTRAN which are used in UMAT.According to Abaqus manual, STRAN is "An array containing the total strains at the beginning of...

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Is there any computing module which can compute a heap of disk elements in...

researchresearch in DEM Is there any computing module which can compute a heap of disk elements in DEM(discrete element method)?it'd be better if it is written in matlab or C/C++. I'm doing research on...

View Article

the DEM's solutions for static mechanics seem strange

researchstaticsdiscrete element methodDEMdistinct element method My own DEM(Discrete Element Method) program's solution for static problem seems strange. I use my program to calculate the displacement...

View Article


Image may be NSFW.
Clik here to view.

Solve 2d diffusion equation

HOW to solve this 2D diffusion equation? the problem described by these equations is: at time=0, N particles are dropped onto an infinite plane to diffuse. C(r,t) represents the concentration density...

View Article

Is there any paper/books on the basic idea of crystal plasticity?

researchThe development of Crystal plasticity?what are the books/papers that give the basic idea about dislocation-crystal plasticity theory?

View Article


fem code for plasticity theory?

education Is there any available fem source code for plasticity theory?  Thanks alot!

View Article

How to perform surface boundary integration in elasticity fem?

research This is a basic question regard to elsticity fem. How to compute traction boundary integration numerically in elasticity fem under general situation? That is: \int_{\Gamma} [N][t] d\Gamma,...

View Article

Is two point tensor a REAL tensor?

Two-point tensor appears in some of continnuum mechanics reference books. 1. In wikipedia, two-point tensor is interperated as:" Two-point tensors, or double vectors, are tensor-like quantities which...

View Article
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