User login

Navigation

What we talked about

You are here

Home

abaqus fracture toughness modelling

Cohesive element modelling problem in ABAQUS

Mon, 2019-01-21 05:11 - hermatician
research
Cohesive Abaqus
Cohesive elements
ABAQUS
abaqus fracture toughness modelling

Dear All,

I am modelling a 3 point bend specimen with Cohesive elements tied to the upper and lower halves of the specimen in 2d.

The problem is that the CZ elements perform properly only for a combination of element sizes, i.e. a combination of element size of structure and CZ elements, for instance in my case the structure/specimen element size is 0.2mm and CZ is 0.001 or 0.002. For any other combination the adjacent elements bend as shown in the attached image.

I will be glad if someone could explain this behaviour and the solution.

»

Line Spring elements errors

Mon, 2016-05-02 17:53 - bantijay01
Forums: 
Ask iMechanica
Choose a channel featured in the header of iMechanica: 
research
Free Tags: 
Abacus
fracture mechanics cohesive abaqus crack length
application of fracture mechanics
line spring elements
Abaqus error
abaqus fracture toughness modelling
j integral and stress intensity factor
J integral - Abaqus
steam generator tube
Pipe

Hello, All

***Problem ***

Failure pressure for Steam generator tube having 2 axial cracks. I am following one paper in that paper they found failure pressure by finding J and K values for line spring elements for different pressure. The pressure at which it approach material JIC(92N/mm) and KIC(65Mpa*sqrt(m)) value is considered as failure pressure or coalescence pressus

**Modelling** 

»

Smeared Crack and Cohesive zone modeling of concrete in ABAQUS

Mon, 2014-12-15 02:25 - ram.jsk
Forums: 
Fracture Mechanics Forum
Choose a channel featured in the header of iMechanica: 
research
Free Tags: 
abaqus fracture toughness modelling

Can anybody help me in using smeared crack and cohesive zone modeling in concrete for different grades. I was actually facing problem in using the same to identify fracture parameters of concrete using ABAQUS. I will also be helpful if anyone let me know about an alternate method to find fracture parameters of concrete using ABAQUS apart from using models. Thanks in advance.......

»
Subscribe to RSS - abaqus fracture toughness modelling

Recent comments

More comments

Syndicate

Subscribe to Syndicate