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I want to do a transient thermal analysis in butt welded joint.The heat flow I have given 3200 watt(Q = efficiency x current x voltage = 0.8 x 160 amp x 25 volt)to the welding zone, given 20 load step(as welding is completed in 20 sec),convection co-efficient = 11.14, emissivity = .4 and applied both boundary condition convection and radiation on every surface except welding zone. But after solving the minimum temperature of the plate is coming in negative.Can anybody tell me what i am missing?
Those involved in the modelling of the failure of plain/reinforced concrete using damage and plasticity might be interested in our webpage
http://petergrassl.com/Research/DamagePlasticity/CDPMLSDYNA/index.html
which we have created to support our concrete damage plasticity model CDPM(2) in LS-DYNA. You can find there a number of example input files, reports and our implementation of the model in the form of a user subroutine.
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A similar discussion on this forum raised many interesting point about- Stress or strain: which one is more fundamental?
http://imechanica.org/node/1001
On a similar note I would like to address this decade old fundamental question on how do we define yield point of a material?
Date: Wednesday, May 4, 2016
Time: 1:00 - 4:00 pm
Location: University College London
Who should attend
Purdue University is seeking applications from outstanding candidates to fill several Postdoctoral Scholar positions to work on atomistic and continuum simulations of physical and chemical processes at extreme conditions of pressure and temperature. The successful candidates will join a multidisciplinary team including modelers and experimentalists working at Purdue, Los Alamos National Laboratory and Stanford University.
I am attempting to model high-pressure gas flow through the granular medium using Abaqus Explicit. I have used SPH modelling for granular particles and the gaseous medium using Eulerian elements.
A node-based surface is created for the SPH particles. I am having trouble establishing contact between the eulerian elements surface and the surface of SPH particles.
Any help would be really appreciated
Thanks.
