large deformation
Objective Stress Rates in Finite Strain of Inelastic Solid and Their Energy Consistency
In many practical problems of solid mechanics, it is sufficient to characterize material deformation by the small (or linearized) strain tensor. But there are also many problems where the finiteness of strain must be taken into account.
Harnessing snap-through instability in soft dielectrics to achieve giant voltage-triggered deformation
For a dielectric elastomer membrane we show giant voltage-triggered expansion of area by 1692%, far beyond the largest values reported in the literature.
Cardboard rolls on the nanoscale
Everybody knows that cardboard paper can be a highly
anisotropic material. You can easily bend or roll it in one direction
and it is stiff in the other. If you take a close look you will find
that the paper is periodically buckled along one direction. We have now
exploited this phenomenon on the nanoscale to define the roll-up
direction of ultra-thin membranes on a substrate surface.
Disparity in Simple Shear solution in ABAQUS
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Dear All,
We tried to simulate simple shear using ABAQUS and compared it with the analytical solution. To our surprise, even though the equivalent stress and strain matched perfectly, the component stress and strain had a large deviation between the semi analytical and ABAQUS methods. The zero components in the analytical model were calculated to be non-zero in the results of ABAQUS. This paradox could not be understood clearly as whether it is a case of software deficiency or conceptual error. A COMPLETE ANALYSIS OF THE PROBLEM IS ATTACHED AS A REPORT.
FSI Analysis to Understand Carpal Tunnel Syndrome
1. We present an interesting application of ADINA FSI in the study of carpal tunnel syndrome. The analyses involve large deformations and contact of multiple flexible bodies which are immersed in a fluid:
http://www.adina.com/newsgH71.shtml
2. Please recall that we offer a very attractive academic package, for research and teaching, for university users. For more information see
FSI Analysis of the Human Coughing Mechanism
We present an application of ADINA FSI in the study of the human coughing mechanism. The aim of the study is to help surgeons to position tracheal implants effectively. Please see
http://www.adina.com/newsgH69.shtml
You can find many other examples of applications of ADINA in the analysis of multiphysics problems here:
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)
FSI in Cardiovascular Mechanics
We present an interesting application of ADINA FSI in cardiovascular mechanics, specifically, a potential cause for heart attacks is studied. Please see
http://www.adina.com/newsgH63.shtml