ABAQUS

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.......

Hello guys,

I have a model in in .inp Abaqus format. I need to modify the model and amend it using Solidworks. Anyone have an idea on how to do that. I just figure out by export it into STL file. When I opened it using Solidworks, I only can view the model. I cannot event draw or make some amendment on the model. Anyone have the same exoerience. Thank you 

How obtain tension strain concrete(σt0) in damaged plasticity model in ABAQUS?

hello engineers

i need help about concrete damaged plasticity

fo example :

if Compressive stress (Fu)= 51.2 MPa

and tension stress (σ t)=0.3 x 51.2^(2/3)=4.136

1)why (σ t) is 2.36 in picture(uploaded)?

2)what is tension strain ? and how? i cant understand.

i cant obtain εt = total tensile strain.

how obtain εcr ?

please help

Hi,

i have a problem with the periodic boundary conditions. I want to implement the boundary condition for example

which i found it in the internet. The first equotion is u_facebuttom - u_facetop=0

So i know that we can do this with creating Constraint and selecting Equotion.

At first i define Sets FaceButtom and FaceTop which includes all nodes on bottom and top. Here is a picture for the Set Face Top

hello,

I am trying to extract mass and stifness matrices of a simple beam using abaqus. The stiffness matrix works fine but when i requested the mass matrix to be exctraced the section in the ASCII related to mass matrix is empty. here my script:

*HEADING

Fixed Beam

ELEMENT: B21

*NODE

1, 0., 0.

11, 1000., 0.

*NGEN,NSET=allnodes

1,11

*ELEMENT,TYPE=B21

1,1,2

*ELGEN,ELSET=elset

1,10

*BEAM SECTION,SECTION=RECT,ELSET=elset,MATERIAL=Concrete

200., 300.,

  I wanna get the dispersion relation of acoustic crystals in ABAQUS, so far as I know, the frequencies can be obtained by applying different wave vectors in the IBZ, but I dont know how to opperate in ABAQUS, in what way can we simulate the wave vectors (or the cooresponding wave length) . By applying force or displacement, or acceleration ?

 Attacthed, should I model the whole structure or just the 1st BZ? If the 1st BZ is employed, should the periodic semmetric B.C. be considered in my model?

Any suggestion is appreciated!