energy deviation in MDS
Any idea why energy deviation between successive steps become a large value during molecular dynamics simulation, when the number of steps is increased?
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A new postdoc position is available
A new postdoctoral position in continuum mechanics is available at the Weizmann Institute of Science. Candidates should have a strong background in physics and/or theoretical mechanics, as well as experience with analytical and computational methods for solving partial differential equations. Possible projects include the mechanics of frictional sliding, the mechanics of biomaterials, the mechanics of glassy materials and dislocation-mediated plasticity. Highly motivated candidates are requested to send their CV, publications list and statement of research interests to Dr.
Rotational DOF for solid elements in ANSYS
Hello colleagues.
I am solving a ring as an axisymmetric solid. I apply displacements and define reactions. According to an experimental data calculated reactions twice larger. We think it because the ring is thin and it is too rigid in solid formulation. Did anyone see solid formulation with a rotational DOF, i mean in any other FEA products?
Poroelasticity of a covalently crosslinked alginate hydrogel under compression
This paper studies the poroelastic behavior of an alginate hydrogel by a combination of theory and experiment. The gel—covalently crosslinked, submerged in water and fully swollen—is suddenly compressed between two parallel plates. The gap between the plates is held constant subsequently, and the force on the plate relaxes while water in the gel migrates. This experiment is analyzed by using the theory of linear poroelasticity.
Crack penetration in cohesive zone models
Hi all,
I am conducting some cohesive crack simulations within the framework of XFEM. The cohesive model is an initially rigid traction-separation law for mode I. In order to deal with negative values of the normal sepration/jump, I use a penalty stiffness K.
periodic boundary conditions in ABAQUS 6.9-1
Hi
I have a problem with applying periodic boundary condition. I have used *EQUATION in constraints for opposite nodes and surfaces. But I still have some problem with that for sure I making some simple mistake. If anyone could look at my model and find problem. Abaqus version 6.9-1 .
Thanks a lot.
Indentation of polydimethylsiloxane submerged in organic solvents
This paper uses a method based on indentation to characterize a polydimethylsiloxane (PDMS) elastomer submerged in an organic solvent (decane, heptane, pentane, or cyclohexane). An indenter is pressed into a disk of a swollen elastomer to a fixed depth, and the force on the indenter is recorded as a function of time. By examining how the relaxation time scales with the radius of contact, one can differentiate the poroelastic behavior from the viscoelastic behavior. By matching the relaxation curve measured experimentally to that derived from the theory of poroelasticity, o
BUCKLING OF A COMPOSITE TUBE
hello my dear friends
i have a small problem, being fresher in ANSYS i couldnt solve the buckling problem can any one help me out
i have made the following APDL text