I am trying to model cohesive contact between analytical rigid and deformable surfaces. cohesive contact is modelled as surface interaction property. Does it work with analytical rigid surfaces. the results are not showing any cohesive contact happening
Date: Thursday, April 25, 2019
Time: 8 am PDT (US West Coast) / 11 am EDT (US East Coast) / 5 pm CEST (Europe)
Duration: 30 min presentations + Q&A
Formation of solidification defects and their evolution in uniaxial tensile deformation of solidified polycrystalline aluminum (Al) were investigated by molecular dynamics (MD) simulations. First, solidification process was simulated both isothermally and with different quench rates. At the initial stages of nucleation, coherent twin boundaries and/or fivefold twins formed depending on the quench rate or the undercooling temperature. The solidified polycrystalline Al consisted of randomly distributed grains, twin boundaries, and vacancies.
Hello All,
I have been trying to restart an ABAQUS simulation using the command line. The following works fine
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abaqus job=restart1.inp oldjob=OLD user=UMAT.f cpus=160 scratch=$PWD interactive
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But when I do the restart for the second time like the following, It gives me an error
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abaqus job=restart2.inp oldjob=restart1 user=UMAT.f cpus=160 scratch=$PWD interactive
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Error :
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Candidates with strong background in numerical simulations (FEA, high performance computing, ...), in experimental characterization of materials, or biochemistry and molecular biology are encouraged to apply.
In this paper we formulate the problems of nonlinear and linear elastodynamic transformation cloaking in a geometric framework. In particular, it is noted that a cloaking transformation is neither a spatial nor a referential change of frame (coordinates); a cloaking transformation maps the boundary-value problem of an isotropic and homogeneous elastic body (virtual problem) to that of an anisotropic and inhomogeneous elastic body with a hole surrounded by a cloak that is to be designed (physical problem).
We have an opening PhD Position at our Institute of Mechanics, Otto von Guericke University Magdeburg (Germany).
The candidate should work in the field of "coupling of fictious domain methods and the boundary element method for the analysis of acoustic metamaterials".
Attached you will find the corresponding job advertisement.
Futher questions will be answered by my postdoc Dr. Fabian Duvigneau (fabian.duvigneau [at] ovgu.de).
https://doi.org/10.1016/j.matdes.2018.04.022
1. Critical porosity is estimated in additively manufactured IN718 via crystal plasticity.
2. Porosity is characterized using high resolution tomography.
3. Non-local damage indicator parameters identify the location of fatigue crack initiation.
4. The critical pore size is 20 μm in IN718 with average grain size of 48 μm.
Recent decades have seen intense developments of hydrogel applications for cell cultures, tissue engineering, soft robotics, and ionic devices. Advanced fabrication techniques for hydrogel structures are being developed to meet user-specified requirements. Existing hydrogel 3D printing techniques place substantial constraints on the physical and chemical properties of hydrogel precursors as well as the printed hydrogel structures. This study proposes a novel method for patterning liquids with a resolution of 100 μm by using the capacitor edge effect.
