I think a non-zero entry in the stiffness matrix doesn't necessarily imply dependence of ith DOF on the jth DOF. This is the case also for standard FEM (without any enrichments). For example for a quadrilateral 2D element the x component of displacement has interaction with y component at each node, but as we know, two independent values of translation in x and y directions can
Dear all,
My name is Adrien Haxaire. I am currently Associate Professor at LGCIE, INSA Lyon, France, until end of August. I am looking for a
Post-Doc position in geomechanics in Europe.
During my PhD, I developped a thermodynamical model capable of describing coupled THMC phenomena in unsaturated porous media. It was implemented in Cast3M.
I am very interested in chemical reactions in porous media, their modelling and implementation. I am also interested in the field of CO2 sequestration.
what is the proof of vector addition of forces, actully how two vectors are added acccording to triangle parellelogram laws , actully i know the process but what is the source or origin of that rule who devised that and how please tell!
Hi every one:
I want to know How can I enter prony series for HDPE into Abaques;
Method of calculating of prony series and Experiments to do.
Best Regards
Mech.Eng. Yaser Alewe
Hi all
According to Timoshenko beam theory shear stress is distributed uniformly across the cross-section depth which is contrary to real distribution of shear stress i.e parabolic distribution. I know there is a shear adjusment factor (5/6 for rectangular cross-section) can solve this problem. But I don't know how can I utilize this adjustment factor in the beam formulation to get parabolic distribution.
Could anybody please help me?
Regards
Huma
I'm new to this web,but I know this is a wonderful forum for reserchers where you can discuss scientific problems with others.(some professors are experts in their fields). I'm now studying anisotropic yield criteria,so I need a graph software which can plot implicit funtions (such as ellipse in the form of x^2-x*y+y^2=1) as well as experimental data.
I know Graph can plot implicit funtions,but the quality of its graph is not good enough.Anyone knows other softwares please give me some advice,thanks in advance.
Dear Guys
Is there any one that can help me for below questions?
1- Modeling FRP in abaqus CAE
2- Define interaction between FRP layer and concrete wall
Regards
M.Mojtahedpour
Dear Sir，
As we know, periodic signals are best analysed in the frequency domain while stochastic signals are usually more profitably analysed in the time domain. The analysis in the frequency domain usually concern only one signal while in the time domain often involves the comparison of several different signals.
1) what are the general methods for transforming the frequency domain into time domain, and which should be superior?
Is there anyone using LAMMPS for nano-mechanics? or for dislocation analysis?
I would like to discuss few things.
There is a basic problem in NATURE of approximation of discontinuity in element using XFEM.I tried to illustrate that below:
for example, If you consider an element with strong discontinuity( like fracture or contact) which usually we use heaviside function as enrichment function. we expect two parts of element deform independently because of nature of problem.
In equation for approximation of this element we have two main parts. First is 'regular' or 'standard' part which uses the standard shape functions of element and Second is the enriched part.
