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stiffness v/s no. of elements

Submitted by vjuair on
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hi,

   i am new to finite elements, i may be wrong, wnen i was solving a problem of hanging beam and load applied at its free end for obvious reasons there was a displacement at the free end. when i increased the no. of elements, deformation was minimum compared to previous result. does this actually mean stiffness got increased? as the basic thing about stiffness is that it depends only on geometry, material property and boundary conditions which were all constant in my case. alll i want to ask is, does stiffness depends on no. of elements? 

thanks

2D modelling of laser welding

Submitted by Tisha on
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simulation
ansys
welding

while carrying out a simple 2D analysis of welding of butt joint considering the source of constant heat flux and applying it at certain nodes as constant heat flux, i encountered a problem that it says that the temperature at particular node is exceeding the pre set limit and no solution is obtained. I am a freshman in Ansys so any help in this regard will be helpful

Discontinuum numerical modelling with 3dec

Submitted by Andrea.Delisio on
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3dec
rock mechanics
jointed rock masses

Hello,

As part of my PhD, I have to study the problem of the stability of the excavation face in tunnels driven in jointed/blocky rock masses. Therefore, I`m trying to build a 3d discontinuum model with 3dec. As I`m rather new to this code, I have a series of doubts (mainly concerning the way to reduce the size of the model and then the time needed for cutting the block geometry and running the calculation). 

I would be really glad if someone who knows the code could help me.

Thank you!

Andrea 

 

Acta Mechanica Sinica Volume 28 Number 2 2012

Submitted by Acta Mechanica… on
research
research papers
mechanics
Acta Mechanica Sinica
International Journal

Hermite WENO-based limiters for high order discontinuous Galerkin method on unstructured grids

Zhen-Hua Jiang, Chao Yan, Jian Yu, Wu Yuan

 Viscous falling film instability around a vertical moving cylinder

Kadry Zakaria, Yasser Gamiel

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