Skip to main content

Use of Hashin damage criteria for plain woven composites in ABAQUS.

Submitted by aelias on
Forums
Ask iMechanica

Hi,

I am trying to model impact damage in a composite plate made of woven plies lay-up. I have 2 questions probably basics but I can't find any clear answer and I hope someone could help me.

1) Can the Hashin damage criterion in ABAQUS be applied to a plain woven composites? I know that initially Hashin critrion was for unidirectional composites and looking at the equations I can't see how this criterion could make the difference between matrix and fibre failure in the case of woven composites, but I can't find any restriction in ABAQUS documentation.

Two PhD studentships in computational fracture mechanics at the University of Glasgow

Submitted by grassl on
job
fracture mechanics
concrete

There are two PhD studentships available at the University of Glasgow in the area of computational fracture mechanics of concrete.

The topics are multiscale modelling of corrosion induced cracking and meso-mechanically motivated nonlocal models for fracture. 

Please visit my webpage at http://www.civil.gla.ac.uk/~grassl for more information.

All the best,

Peter Grassl

How to define eulerian region for 2D modeling of orthogonal machining using ALE adaptive mesh constraints?

Submitted by AmirAshy on
education

HI


I am working with abaqus6.8.1. I am interesting to model orthogonal
machining by ALE adaptive remeshing IN 2D. In this way I have a problem.
For modeling of machinig inflow and outflow surfaces(eulerian) with
inflow boundary condithion type velocity(eulerian) must be defined.but
the default definition of surfaces and region or boundary type in abaqus
are lagrangian. I read on user manual that this type must be change to
eulerian.



abaqus, cel, coupled eulerian lagrangian, fluid flow

Submitted by Ledjani on
education
ABAQUS
Fluid flow
cel
coupled eulerian lagrangian

I am trying to model a tube which is filled with liquid that is being crushed.  I am using Coupled Eulerian Lagrangian to model the problem in abaqus, and there are a few distortions/errors in the model.  I am using symmetry to model only quarter of the model.  The liquid actually comes out from the sides of the tubes as the two attached pictures show.  

 

PROGRESSIVE DAMAGE AND FAILURE ABAQUS / EPOXY RESINS

Submitted by CeciliaPisano on
abaqus explicit
epoxy resin
progressive damage and failure

Hi everybody,

 have you ever tried to model the damage behaviour of a material using the theory of progressive damage and failure

for ductile metals implemeted in Abaqus for continuum elements?

If so, do you think it is possible to use the same theory to model the damage behaviour of an epoxy resin?

Are there any articles in which this has been done? Could you please suggest me some articles to read?

 Thank you very much.

Regards,

 Cecilia 

How to apply pressure on perticular side of the shell element

Submitted by Dhanashri Joglekar on
Forums
Computational Mechanics Forum

If a pressure is to be applied on one of the sides of the shell element (not on the mid surface) in ansys, how to do it? And if the pressure ie acting on both the sides of the geometry, then how to take care of it when shell element is being used?

Subscribe to