research
Tensile stress of the concrete
Dear friends
The obtained results from my model show that the ultimate load is higher
than the expected one. after checking the results, I found out that the
tensile stress of concrete is much higher than input value for the
tensile yield stress. "concrete damaged plasticity model" is applied.
your help is highly appreciated.
What is the best method now to solve advection equation?
I am solving the advection equation which is hyperbolic. Some basic techniques (shown on the page http://www.cse.illinois.edu/iem/pde/discadvc/) are either of large oscillation or numerical diffusion.
I am striving to find a method without or with little of these problems. Or is there any post correction method to use?
Thank you all!
Czech Society of Mechanics Institutes Z.P. Bazant Prize for Engineering Mechanics
Czech Society of Mechanics Institutes Z.P. Bazant Prize for Engineering Mechanics
The Czech Society of Mechanics, Prague, has instituted the Z.P. Bazant Prize for Engineering Mechanics,
in honor of Prof. Zdenek P. Bazant, the McCormick Professor and Walter
P. Murphy Professor Of Civil Engineering And Materials Science. The selection
committee is composed of members from the Czech Technical University
and the Czech Academy of Sciences. The Prize is to be given annually.
A computational model of hydrostatically coupled dielectric elastomer (HCDE) actuators
Abstract:A hydrostatically coupled dielectric elastomer (HCDE) actuator consists of two membranes of a dielectric elastomer, clamped with rigid circular rings. Confined between the membranes is a fixed volume of a fluid, which couples the movements of the two membranes when a voltage or a force is applied. This paper presents a computational model of the actuator, assuming that the membranes are neo-Hookean, capable of large and axisymmetric deformation. The voltage-induced deformation is described by the model of ideal dielectric elastomer. The forc
A Theory for Large Deformation and Damage of Interpenetrating Polymer Networks
Xuanhe Zhao
Soft Active Materials Laboratory, Duke University, Durham, NC 27708
Journal of the Mechanics and Physics of Solids, In press
Abstract
Designing copper–zirconium based nanowires for improving yield strength and plasticity via configuring surface atoms
Following our previous work on Cu-Zr nanowire system, in this paper we have shown improvement in various thermo-mechanical properties of nanowire via manipulating the surface atoms. The paper titled "Designing copper–zirconium based nanowires for improving yield strength and plasticity via configuring surface atoms" by Vijay Kumar Sutrakarand D Roy Mahapatra has been published in Journal of Nanoparticle Research. The paper can be downloaded from
http://www.springerlink.com/content/j2786222101mn711/