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Inelastic hosts as electrodes for high-capacity lithium-ion batteries

Submitted by Kejie Zhao on

Silicon can host a large amount of lithium, making it a promising electrode for high-capacity lithium-ion batteries.  Upon absorbing lithium, silicon swells several times its volume; the deformation often induces large stresses and pulverizes silicon.

dracker prager plasticity model with softening

Submitted by Gamal on

Hi my friends,i am using Dracker prager plasticity model to simulate uniaxial compression (softening) of coal samples.in dracker prager, the shear criterion is linear, and the hardening type is compression. there is a table that i should fill out, this table composed of yield stress and abs. plastic stain. my question is:- how can i fill out this table by using the experimental data (stress-strain diagram for uniaxial compression test) ?? shall i convert these data using any equations??

Beam on elastic foundation

Submitted by parisa on

Dear All,

I am wondering that is there any closed form solution for beam on elastic foundation in case which we have got two stiffness for the springs namely (axial and shear stiffness). The axial force are born because of the some loading conditions in the support.Would you please help me about this?

Thank you,

Parisa

Strain stiffening induced by molecular motors in active crosslinked biopolymer networks

Submitted by Peng Chen on

We have studied the elastic response of actin networks with both compliant and rigid crosslinks by modeling molecular motors as force dipoles. Our finite element simulations show that for compliant crosslinkers such as filamin A, the network can be stiffened by two orders of magnitude while stiffening achieved with incompliant linkers such as scruin is significantly smaller, typically a factor of two, in excellent agreement with recent experiments.

stability analysis of rotating cantilever shaft-disk systems

Submitted by balaji modepalli on
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i am doing my research project on stability analysis of a cantilever rotating shaft-disk systems. i need to study  some basic theory about this. please suggest me  some books or publications. my email id is balaji.modepalli [at] gmail.com

how can i overcome divergent problem in abaqus standard

Submitted by Gamal on

hi my friends,

i am using abaqus standard Mohr-Coloumb plasticity to model uniaxial compression test, so i have sample and (upper and lower platen) to represent the compression machine , i apply the load through the movement of the upper platen, the stress strain diagram of my material is strain softening.