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Real-space phase-field simulation of piezoresponse force microscopy accounting for stray electric fields

Submitted by Kaushik Dayal on
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preprint

This is the preprint of an article that will appear in Modelling and Simulation in Materials Science and Engineering (doi:10.1088/0965-0393/20/3/035021).


Real-space phase-field simulation of piezoresponse force microscopy accounting for stray electric fields

by Lun Yang and Kaushik Dayal, Carnegie Mellon University

 

Abstract

Effects of the constraint’s curvature on structural instability: tensile buckling and multiple bifurcations

Submitted by Davide Bigoni on
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Can a single-degree-of-freedom elastic structure have two buckling loads?

We provide a positive answer to this question, see http://www.ing.unitn.it/~bigoni/multiple_bifurcations.html

 

Effects of the constraint’s curvature on structural instability: tensile buckling and multiple bifurcations

Submitted by Davide Bigoni on
research
structures
instability

Can a single-degree-of-freedom elastic structure have two buckling loads?

We provide a positive answer to this question, see http://www.ing.unitn.it/~bigoni/multiple_bifurcations.html

 

Dynamic Electrostatic Lithography: Multiscale On-demand Patterning on Large-Area Curved Surfaces

Submitted by Qiming Wang on
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SAMs Lab research
dynamic electrostatic lithography
multiscale on-demand patterning
concave pattern

Dynamic Electrostatic Lithography: Multiscale On-demand Patterning on Large-Area Curved Surfaces

Qiming Wang, Mukarram Tahir, Jianfeng Zang, and Xuanhe Zhao*

 Advanced Materials, In press 

Friction Stir Spot Welding model

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Hi,

   In my fssw modeling, I'm using Johnson cook material model and C3D8RT element. I checked the consistancy of units also.

 

   My job is running upto 7frames out of 20frames and suddely aborting saying "the defomation speed exceeded the wave speed due to the excessing temperature and badly distorted elements" 

   Some times it also terminating saying "excess temperature occurs in solving the heat transfer equations"

 

can any body help me to complete my job please.

Need help with understanding Thin Plate Splines as Radial Basis function for Meshfree simulation

Submitted by VardhiniV on
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meshfree

I want to try applying TPS as the RBF for the simulation of groundwater flow and transport. but the i'm getting error because of zeros in diagonal elements in the global matrix. Please help with the shape function

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