Blog posts

Length Scales in Fracture

Submitted by W. Brocks on Sat, 08/20/2011 - 11:30

research

Ductile fracture; Aluminum alloy; Damage plasticity theory; Crack propagation

Help in ABAQUS

Submitted by drmaity on Sat, 08/20/2011 - 10:22

research

ABAQUS

contact

Coefficient of Friction

temperature-displacement

Dear all,

In my FE model (pin on disc), I would like to define a contact property between pin and disc with a friction defination available in ABAQUS. I have assumed that friction coefficient depends on parameters like slip rate, pressure and temperature only. When i used friction coefficients with slip rate and pressure, model works without any error but if i use friction coefficients with slip rate, pressure and temperature, the model doesn't work and come up with following errors;

smeared crack concrete output problem

Submitted by rabeeshammas on Sat, 08/20/2011 - 09:55

software

Hello Guys.. I am modelling single dry shear key which is in the joint of segmental bridge, I model the concrete by using

smeared concrete model.the model in working and i get the results .Please can anyone help me how to find the crack

pattern ?? Really i stoprd at this point for more than 15 days !! I read the manual and it says that output information for

smeared concrete model is CRACK and CONF but I cant figure out where can I find it ..on the other word how I can

Microscale characterization of granular deformation near a crack tip

Submitted by Sandip Haldar on Fri, 08/19/2011 - 23:01

Deformation characterization; Microscale deformation; Digital Image Correlation; SEM

Abstract

This paper presents a study of microscale plastic deformation at the crack
tip and the effect of microstructure feature on
the local deformation of aluminum specimen during fracture
test. Three-point bending test of aluminum specimen was conducted
inside a scanning electron microscopy (SEM) imaging system.
The crack tip deformation was measured in situ utilizing SEM imaging
capabilities and the digital image correlation (DIC)
full-field deformation measurement technique. The microstructure feature
at the crack tip was examined to understand its effect on
the local deformation fields. Microscale pattern that was suitable

Discussion of fracture paper #3 - Length scales in fracture

Submitted by ESIS on Fri, 08/19/2011 - 22:00

research

Ductile fracture; Aluminum alloy; Damage plasticity theory; Crack propagation

H. Krull and H. Yuan: Suggestions to the cohesive traction–separation law from atomistic simulations. Engineering Fracture Mechanics, Vol. 78, 2011, pp. 525-533.

To the discussion

Abaqus CAE- buckling analysis eigenvalue

Submitted by Gullos on Fri, 08/19/2011 - 19:32

software

ABAQUS/CAE

Dear members,

my question is about how to use the Abaqus CAE eigenvalue for a linear buckling analysis.

I did a linear buckling analysis for a gFRP vertical panel (h:270 thick:20 w:50 cm). I applied a uniform pressure with value 1 on the top of the panel along the Z axis.

Mode 1 gives me an Eigenvalue of 52853 (please see the attachment). I know that in order to obtain the maximum buckling stress I should multiplicate the eigenvalue for the load appied. It means that the value for the buckling stress is 52853 (N/cm2).

Example problems for tire modeling in Abaqus or Pro Engineering

Submitted by pradeep632 on Fri, 08/19/2011 - 18:21

HI,

I am just a begineer in modeling and FEA analysis of tires. Can anyone please provide me with the tutorial or anything for modleing of tires in Pro Engineering or Abaqus and FEA techniques for tire analysis. I would be very glad to have any kind of help. Looking forward for the help. thank you.

Best Regards,

Pradeep