Fracture Mechanics Forum

Orthogonality and closure relations in Stroh formalism

Submitted by Miroslav Hrstka on Mon, 02/15/2016 - 13:58

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Stroh

orthogonalization

orthogonality relation

Dear iMechanica members,

I deal with exteded Stroh formalism for piezoelectric media. I have problems with orthogonalization of Stroh´s matrices A, B, respectively how to fulfil the ortogonality relations (see attachments). I tried to "rape" it and made the left matrix inverse of the right matrix (then the product is an unit matrix) and I became very similar singularity expomemt as in the paper

How to model hybrid composite in ABAQUS?

Submitted by Muhammad Ziaur… on Tue, 01/26/2016 - 07:25

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Hello everyone,

Bending simulation using WARP3D code

Submitted by Ramy Gadallah on Thu, 10/08/2015 - 09:05

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Fracture Mechanics Forum

Hi,

I want to know how to perform bending simulation of a surface cracked-model using WARP3D code?

Thanks.

XFEM ABAQUS- Different "K" for different mesh sizes

Submitted by RKM on Tue, 06/23/2015 - 17:00

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Fracture Mechanics Forum

I'm trying to model semi elliptical part through circumferential crack on a pipe. I'm getting different values of stress intensity (max. energy release criterion) for different mesh densities/configurations. What could be the possible reason?

Asking for help regarding the failure modelling of polymers in Abaqus

Submitted by AliEnt on Thu, 04/16/2015 - 06:23

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Fracture Mechanics Forum

Hi guys,

I have a porous structure (bio-scaffold) made of photopolymer. After doing experimental compression test for this model, I found out that the stress/strain curve has a non-linear section (non-elastic behaviour) before it gets fractured.

how to apply cyclic loads in direct cyclic low cycle fatigue

Submitted by oberoitan on Sat, 02/14/2015 - 14:45

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hiii My dear CAE simulators....

plz help me m doing fatigue life estimation of plate with hole problem under constant amplitude tensile-compression

J integral for throughwall circumferential crack - abaqus

Submitted by kumar1191 on Sun, 01/11/2015 - 13:48

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Fracture Mechanics Forum

Hi All!

I am a beginner in the field of abaqus. I am trying to obtain J integral for throughwall circumferentially cracked pipes. I found these images from fracture lectures of abaqus training slides. I wanted to know what is the partitioning stragegy in abaqus, to create the partition for the contours.

I am using EPFM, Ramberg Osgood model, subejcting the pipes to bending moments.

Thanks in Advance!!

How to conduct fracture analysis with thermal loading in Ansys?

Submitted by angelaustb on Fri, 12/19/2014 - 19:51

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Fracture Mechanics Forum

(Firstly, not sure if this is the proper place to post this question. I see a lot of posts about ABAQUS but not Ansys)

I’m new to fracture analysis, and I get a problem with the analysis process with thermal loading.

Smeared Crack and Cohesive zone modeling of concrete in ABAQUS

Submitted by ram.jsk on Mon, 12/15/2014 - 07:25

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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.......