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.
The Department of Materials Science and Engineering at the University
of Pennsylvania invites applications for a tenure track faculty
position. Applications will be considered from outstanding candidates
in any emerging area of Materials Science and Engineering. Successful
candidates will be committed to excellence in undergraduate and
graduate teaching, in particular curriculum development related to
Mechanical tension contributes to clustering of neurotransmitter vesicles at presynaptic terminals.
Scott Siechen, Shengyuan Yang, Akira Chiba and Taher Saif
Proceedings of the National Academy of Sciences, August 4, 2009 vol. 106 no. 31 12611–12616
http://www.pnas.org/gca?gca=pnas%3B106%2F31%2F12611&allch=
If someone knows of books/articles dealing with the meaning of the concept of potential in physics (or concerning the physical bases underlying the energy methods of mechanics) then I would very much appreciate getting to know about these.
