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Modelling cohesive zone model to capture debonding failure in steel-cfrp interface

Submitted by pirs on
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Hello everyone,

 Basically I am using ABAQUS/Explicit to perform quasi-static analyses on steel members reinforced with cfrp strips. I have obtained the cohesive zone model parameters and I am trying to apply them to my model. I am assuming that failure will occur in the adhesive, as observed experimentally.

 

How 2D Finite element metal cutting simulation will help to find out surface rouness??

Submitted by Borad M Barkachary on

Hi all Metal cutting experts...



I have done done 2D finite element metal cutting simulation and validated with experimental force value. as we know.. from 2D FEM simulation, we can get only force data, stress-strain, temperature and somehow chip morphology. Can anyone kindly tell me how will this 2D simulation help me to link with surface roughness of the machined surface.



I will be  very gratefull to you all....

 

thanks in advance...



regards...

Borad

India

ANSYS modelling and meshing

Submitted by Manohar Reddy Y P on
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Hi all,

       I am new to ANSYS. My problem is how to connect (transistion) different elements like solid-shell or solid-beam elements, because the different elements have different degrees of freedom and at the interface the mismatch of degrees of freedom occurs. Its basically, what are transition elements present in ANSYS and how to use them

thank you 

XFEM Crack Growth Across Bi-material Interface

Submitted by fraaztahir on
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 I am using XFEM in ABAQUS to simulate crack growth from one material to another. Although the crack passes through the interface, the simulation stops after crack growth of few more elements with this error:

"THE FRACTURE CRITERION f=1.5400 AT ELEMENT 2469, THE DAMAGE INITIATION TOLERANCE HAS BEEN EXCEEDED AND CUTBACK IS REQUIRED."

 This element is the one right next to the crack front.

 I have tried to increase the damage initiation tolerance > 0.5 and the crack grows one more element and then same error.

the relationship between the elastic constant of the metal and the the number of the fatigue cycles?

Submitted by Lang Zhou on

Is there a relationship between the elastic constant of the metal and the the number of the fatigue cycles?If we can find the relationship of the stand test spesimen,can we use that  relationship to predict the fatigue life of other structures? 

Abaqus Modeling polymer/nanoclay (short fiber) composite model for crack propagation using XFEM

Submitted by cooljoon78 on
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Hi all,

I am working on modeling crack propagation in 2D polymer/nanoclay composite material using XFEM.

The polymer matrix would be rectangular shape and nanoclays be 2D wire.

Thus, the composite model looks like 2D rectangular and short fibers embeded in it.

The nanoclays (fibers) can be delaminated during the simulation, therefore I want to apply cohesive zone model at the interface between polymer and nanoclays.

Doctoral Studentship in high strain rate properties of Nickel Alloys

Submitted by CliveSiviour on

The Department of Engineering Science at Oxford University has recently obtained an iCASE studentship funded by EPSRC and Rolls-Royce plc to perform research into the mechanical behaviour of metals at high temperatures and high strain rates. The studentship provides full funding (fees and stipend) at the home / EU level for 3.5 years.