research

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.

Dear fellows,

We will predict the fatigue life for the metal-ceramic multilyer devices subjected to cyclic load in service . Residual stresses are induced during  high- temperature process in the devices, which were known in the previous work. Considering the bimaterial interface as a weak plane, no  geometric discontinuity are taken into account, i.e., perfect interfaces are considered.

 How to construct the cohesive interface model (no initial crack)?

appreciate your advice in advance.

Hello Everybody,

Monaghan suggested for the SPH velocity correction an epsilon value of 0.5. If i use that in my code, my fluid behaves like pudding, not like water. It behaves like water when i use 0.001 or something similar. My start conditions are: rho = 1000, smoothing length h = particle spacing dx, sampling neighbours within a radius of 2h. Has anybody an idea? 

Regards,

Frank

Hello,

My aim is
to carry out calculation of 2D crack propagation with ABAQUS 6.6.

Section 11.4.3
“CRACK PROPAGATION ANALYSIS” is providing an overview of what the software can
do, and I must say I am disappointed, for two main reasons: