Copper material modelling using Johnson Cook model in LS DYNA
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Deriving analytical solution to 3D nonlinear elastic wave equation
I am creating this post to get some inputs on deriving the analytical solution to the 3D nonlinear elastic wave equation.
Effect of Wear on the Evolution of Contact Pressure at a Bimaterial Sliding Interface
The eigenfunction method pioneered by Galin (J Appl Math Mech 40: 981–986, 1976) is extended to provide a general solution to the transient evolution of contact pressure and wear of two sliding elastic half-planes, under the assumption that there is full contact and that the Archard–Reye wear law applies. The governing equations are first developed for sinusoidal profiles with exponential growth rates. The contact condition and the wear law lead to a characteristic equation for the growth rate and more general solutions are developed by superposition.
Validation of 3D nonlinear elastic model- INCS method
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I am creating this post to get some inputs/ possible collaboration for validating my 3D nonlinear elastic model.
Large scale ab-initio simulations of dislocations
Dear fellow mechanicians,
I wanted to share our recent paper in Large scale ab-initio simulations of dislocations. A link with free access is provided.
https://authors.elsevier.com/a/1aRRW508Hm3Z7
https://www.sciencedirect.com/science/article/pii/S0021999120300231?dgc…
https://arxiv.org/pdf/1907.02604.pdf
Best wishes,
Computer Graphics Algorithms and Image-Based Multiscale Multigrid Framework
We present a novel image-based multiscale multigrid solver that can efficiently address the computational complexity associated with highly heterogeneous systems. This solver is developed based on an image-based, multiresolution model that enables reliable data flow between corresponding computational grids and provides large data compression. A set of inter-grid operators is constructed based on the microstructural data which remedies the issue of missing coarse grid information.
Unified Mechanics Theory
Recently, I guest-edited a special issue of the journal Entropy on Unified Mechanics Theory and related topics. All published papers are available for free download from the link below.
https://www.mdpi.com/journal/entropy/special_issues/fatigue
On the suitability of slow strain rate tensile testing for assessing hydrogen embrittlement susceptibility
I hope that some of you will find this work interesting. We show that early cracking occurs in slow strain rate tensile testing (SSRT), which compromises the capabilities of this popular experiment for measuring hydrogen embrittlement susceptibility.
On the suitability of slow strain rate tensile testing for assessing hydrogen embrittlement susceptibility
Recent review paper on the role of adhesion in contact mechanics
In Journal of the Royal Society Interface https://royalsocietypublishing.org/doi/10.1098/rsif.2018.0738
