research
Elastic Modulus vs Hardness.
Dear All.
May I please ask what is the relationship between Elastic modulus and hardness. Is it a direct relationship? i.e. higher the hardness, higher the elastic modulus.
Also, how could we interpret this relationship in materials like living bones?
Many thanks
Zartasha
Lithiation-Induced Embrittlement of Multiwalled Carbon Nanotubes
ACS Nano, 2011, DOI: 10.1021/nn202071y
In situ TEM electrochemistry of anode materials in lithium ion batteries
Xiao Hua Liu and Jian Yu Huang, Energy Environ. Sci., 2011, DOI: 10.1039/C1EE01918J
Influence of Material Ductility and Crack Surface Roughness on Fracture Instability
This paper presents a stability analysis for fractal cracks. First, the Westergaard stress functions are proposed for semi-infinite and finite smooth cracks embedded in the stress fields associated with the corresponding self-affine fractal cracks. These new stress functions satisfy all the required boundary conditions and according to Wnuk and Yavari's embedded crack model they are used to derive the stress and displacement fields generated around a fractal crack.
Multiscale molecular simulations of the nanoscale morphologies of bulk heterojunction organic photovoltaic cells
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Hi guys
The following is our latest work just published on Energy & Environmental Science
Multiscale molecular simulations of the nanoscale morphologies of P3HT: PCBM blends for bulk heterojunction organic photovoltaic cells
Cheng-Kuang Lee, Chun-Wei Pao, and Chih-Wei Chu
Research Center for Applied Sciences, Academia Sinica, Taipei, Taiwan
T Splines and related stuff
Hi Friends,
Is there anybody working on T Splines, apart from Sederberg's team?
Phase-field simulation of anisotropic crack propagation in ferroelectric single crystals
This is the preprint of an article that will appear in Modelling and Simulation in Materials Science and Engineering (MSMSE)
Title: Phase-field simulation of anisotropic crack propagation in ferroelectric single crystals: effect of microstructure on the fracture process
Authors: Amir Abdollahi and Irene Arias, Universitat Politecnica de Catalunya (UPC), Barcelona
Abstract:
Modeling contact problem in ABAQUS
Dear all,
In my FE model (pin on disc), I would like to define a contact property between pin and disc with a friction defination available in ABAQUS. I have assumed that friction coefficient depends on parameters like slip rate, pressure and temperature only. When i used friction coefficients with slip rate and pressure, model works without any error but if i use friction coefficients with slip rate, pressure and temperature, the model doesn't work and come up with following errors;