Theory of dielectric elastomers capable of giant deformation of actuation
Theory of dielectric elastomers capable of giant deformation of actuation
Xuanhe Zhao, Zhigang Suo
Physical Review Letters, 104, 178302 (2010)
Opening for a Post-Doc position: Adaptive anisotropic mesh for automated geometric reconstruction
A postdoctoral researcher is required to work on adaptive
anisotropic mesh refinement algorithms for the CEMEF, Center for Material
Forming at MINES ParisTech in Sophia Antipolis, French Riviera, France.
Interfacial Fracture
These notes belong to a course on fracture mechanics
A body consists of two materials bonded at an interface. On the interface there is a crack. The body is subject to a load, causing the two faces of the crack to open and slide relative to each other. When the load reaches a critical level, the crack either extends along the interface, or kinks out of the interface.
Emden-Fowler Differential Equation
Forums
I input into MAPLE the following differential eq & it returned that it is classified as an Emden-Fowler Differential Equation:
r^2*F"+1/r*F'-k^2*F=0 where F is a function of r
MAPLE was able to generate a solution. I am attempting to figure out how this eq is actually solved & I typed in Emden-Fowler into the SEARCH window on this website & got ZERO results.
Tire-Water-Pavement contact problem
Hello all,
I want to model hydroplaning problem in abaqus. how to simulate water component in between tire and a pavement in abaqus.
I want to use either Coupled-Eulerian-Lagrangian algorithm or Aribitrary-Lagrangian-Eulerian algorithm at the contact patch but i could find any one of these features in abaqus.
Please tell me in detail, if any one has done this problem in abaqus.
Thanks a lot
Pujitha
Which program? ABAQUS, Comsol or Ansys
Hi all,
I am a PhD student at the first months. I have to choose a finite element software to study impact effect on biological soft tissues. After some web researches the softwares which seem to be more suitable are ABAQUS, Comsol Multiphisics and Ansys.
My intention is to develop an user defined material model considering the material as anisotropic porous-visco-elastic.
I would appreciate some suggestions/opinion. I am specially interested in dynamical simulations.
Giacomo
Stress triangular mesh
Hi all,
I have some
problems with understanding correctly the stress (e.g. Cauchy stress)
calculated by Abaqus. The boundary value problem consists of a square
where the top side is displaced up by 20% of its original height while
the bottom side is fixed. Now when I use a quadrilateral mesh the
result is clear. But what happens when a triangular mesh is used? Why
some triangles have a negative stress? In the figures the S11
component of the Cauchy stress tensor is plotted.
Best regards,
Barbara
Physical significance of higher order spatial derivatives of displacement (longitudnal loading)
Forums
Hi,
I have encountered fourth order space derivative in the PDE derived for
smart material.I am looking for the physical significance of higher
order spatial derivative of displacment in longitudnal loading. In the
Euler-Bernoulli beam theory (lateral loading), the fourth order space
derivative referes to the load.
In longitudinal loading, the first order space derivative is strain i.e
du/dx .What are the significane of higher order space derivatives d^2
u/dx^2 , d^3 u/dx^3 , d^4 u/dx^4?
Please share your expertise.
Travel Support for US Participants to the Summer School on Fracture 2010
A Summer School on Fracture will be held at the Institue d’Etudes Scientifiques de Cargèse, during June 7 – 19, 2010. You can find detailed information about the school, the topics covered, lecturers, accommodation, travel, etc at the following websites: http://www.ae.utexas.edu/SummerSchoolFracture/, http://www.iesc.univ-corse.fr/spip.php?rubrique143/
stress - Strain diagram
hi all,
Why the stress values are on Y-axis and strain values on X-axis?
If we interchange the stress on X axis and strain on Y axis , will there be any change or is it possible to change?
Regards
sagar