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Hello every one.

Just as the topic mentioned above, I wish to know how to medel interfacial crack propagation in ABAQUS with XFEM method. I have already know the "debond" method. I wonder whether the XFEM can solve the interfacial crack propagation ptoblem.

Thank you.

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HI

i am traying to create buckling(eigen buckling)in ansys ver10.for contilever beam i haven't any problem,but in another types(for example beam with pin ends and etc)program have a similer error by this notification.ALL STIFFNESS MATRIX IS ZERO

please if it's possible help me

BEST REGARDS

HAMID ABEDI

Hello every one.

I need your help. I am now learning ABAQUS, doing some practice with crack propagation. The example I am doing now is a gravity dam. I sincerely want to know some material parameters with concrete damage, for example, the Normal Mode Fracture Energy, Shear Mode Fracture Energy 1st direction and 2nd direction, etc. If anyone could provide them to me ,or recommand some books that share such parameters, I would be much appreaciated.

I am waiting for your help.

Thanks.

Dear All,

My name is Ronald, student at Eindhoven University of Technology, master Structural Design and i have an import question about the FEM programme Abaqus, about orthotropic materials.

I defined an orthotropic or anisotropic material in Abaqus by using the option; engineering constants or orthotropic (all linear elastic).

Abaqus asks for the modulus of elasticity in direction 1, 2 and 3 and the shear modulus and poisson ratios.

So far so good.

Hi all,

How we can model a ductile damage in ABAQUS?

I tried for this, but all elements extended instead of damaged and remove from the Stiffness matrix

waiting for your kindly reply as soon 

How is the Almansi-Eulerian strain used?

Is there a way to use it with some form of static equations of equilibrium to solve small strain, large rotation problems? I have sucessfully applied the Green-Lagrange strain. But, I can't find anything on how the Almansi-Eulerian strain is used to formulate and solve boundary value problems.

hi,

   i am new to finite elements, i may be wrong, wnen i was solving a problem of hanging beam and load applied at its free end for obvious reasons there was a displacement at the free end. when i increased the no. of elements, deformation was minimum compared to previous result. does this actually mean stiffness got increased? as the basic thing about stiffness is that it depends only on geometry, material property and boundary conditions which were all constant in my case. alll i want to ask is, does stiffness depends on no. of elements? 

thanks