Does any one know how to implement other viscoelastic material models, like Burgers' model, in ABAQUS? To my knowledge only Prony series can be used to model visoelastic materials in ABAQUS/standard.
thanks,
Milliyon
Can any one please tell me where to find some mathematical proof (or justification) of the non-conformability arises due to misalignment of background cell and the support domain in mesh-free methods based on Galerkin formulation.
Amit
I am putting together a proposal in response to NSF's Engineering Virtual Organizations solicitation regarding what I call Open Source Publishing. The proposal can be found (and edited if you setup an account) here. I would encourage you to register and edit if you're interested. All revisions are saved so there is no risk of messing something up. The proposal is fairly unstructured at this point and consists
This paper extends the recently developed theories of fracture
mechanics with finite growth (mainly the work of Pugno and Ruoff, 2004
on quantized fracture mechanics) to fractal cracks. One interesting
result is the prediction of crack roughening for fractal cracks.
Kathleen S. Toohey, Nancy R. Sottos, Jennifer A. Lewis, Jeffrey S. Moore, and Scott R. White
Material Point Method (MPM):
June 1st 2007, Materialise announced the winners of the Mimics Innovation Awards 2007 at the International Mimics User Group Meeting in Washington, D.C.
We congratulate:
Vos W. – University Hospital Antwerp, Belgium
Discusssion on Crystal plasticity
(1):How to establish a model which reflect the size effect in material
(2):How to form the finite element implementation of equilibrium field equation
I hope to have discussion with you in these topics
My E-mail: zhangxu26 [at] 126.com (zhangxu26[at]126[dot]com)
I have attached a copy of my McMat07 talk below. The talk is about a modified mechanical threshold stress (Follansbee-Kocks) model that can be used for strain rates > 1000 /s and high homologous temperatures. In the model, the pressure dependence of the flow stress arises from the pressure dependence of the shear modulus. Even after using the most accurate models for the shear modulus (and the melting temperature) we find that the pressure sensitivity of the flow stress is underestimated by our model (by quite a bit).
Hi everyone
I need help regarding material modelling in Ansys.
Actually we have obtained the stress-strain behaviour for slurry
infltrated fibre concrete experimentally. For FE modelling of a
circular ring of this SIFCON. I want to assign actual values in the
available material models. I tried to input + and - sign for tensile
and compressive stress-strain values respectively in multilinear
isotropic, but it did'nt accept -ve values. Suggestions from experts
are welcome. If anymore detail is needed to clarify this querry I
can provide.
