I am new in ABAQUS. I am trying to find the thermal stresses created by change in temparature of 50'C for lainate consisting of [90/+45/-45/0]s configuration. Eventually what I intend to do is find the stresses under a simple uniaxial load which also consider the change of temperature while calculating the stresses in each ply. I have the material data for the coefficinet of thermal expansion both for longitudinal and trnasverse directions (alpha_11 and alpha_22).
Recently, I indulged myself into the progressive damage simulation of composite materials. I firstly used the USDFLS to create several fields to define certain kinds of damage, such as fiber crack, matrix crack, shear damage and delamination. One curious thing that I experienced into this is that ABAQUS/Standard informed me that "Stiffness defined by engineering constants is not physically reasonable. Check choice of poisson's ratios". I checked the data and changed some to comply with the rules of the transversely isotropic materials and the program proceeded.
I would like to get informations about ABAQUS aqua which is being used for offshore analysis, if any one have anything about that subject including (tutorials , examples and notes ) I would be grateful to him in providing me with.
I am working with a simulation of a thin component bonded to a thick
component in ABAQUS 6.7. Here I utilize beam (B21) elements bonded to
plane strain elements (CPE4R) using a *TIE constraint, and another
simulation that uses plane stress elements (CPS4R) bonded to plane
strain elements (CPE4R) using a *TIE constraint. In both cases the
plane strain elements represent the slave surface for the bonded
I am having some troubles with the extrude command in Abaqus cae. I have modeled my sample as a 2-D geometry and now I want to move to 3-D for the same section. But I am having trouble extruding my 2-D section. It seems to me very weird and far to complicated the extrusion process in abaqus for such a simple task...
Herewith I announce to you that we created a discussion forum for topics related to our contact mechanics software on our website www.kalkersoftware.org .
The idea is to facilitate discussions and information exchange between users,
and between users and developers.
Am writing as a statement in my model the option initial conditions, am not sure where is the excat palce so i run my file to identify the error "as follows" but still not knowing where to do so?!! (it said under level: Model)!!!
is it possible to load (or simple harmonic ...) this structure to make it resonates and see the amplified strains.
What are the steps:
- I have already started extracting the natural frequencies (modal analysis I took 6 modes).
- I still have to apply a harmonic load F (t) = f 0 cos (alpha * t), I can not make this charge (I froze here)
- Instead it will force following the direction of the first response of the structure (the first nature-value) in the direction of the distortion along the + y axis (blue arrow)
I'm doing project entitled, " Study on the behaviour of CFRP strengthened concrete structures subject to cyclic loading" both experimental and analytical part using Abaqus. ( All dimensions are in terms of SI units[N,mm,s])
concrete dimensions: 1500 x 100 x 200 (L x B x D), M40 grade,
Abstract:The braking operation is a process which converts the kinetic energy and the potential energy of the vehicle into other energies. The major part of the mechanical energy is transformed into heat. ¶During the braking phase, the frictional heat generated at the interface disc - pads can lead to high temperatures.
I've modeled a composite sandwitch with ANSYS with a pressure. The element chosen was SHELL181.
I want to know the Stresses in the x, y and xy directions; the displacements and the deformations only in a few points so as to compare with the Navier and Rayleigh-Ritz solutions made following Reddy's book.
1.-The first problem is that I don't know how to ask ANSYS to list the displacements and deformations.
2.-The second one is that I know how to ask ANSYS to list all the elements in a layer,
hi how r u im doing a project based on landing gear struts system . i want to replace hydralic landing gear system by spring damper system in ls dyna . plz guys i need urgent help i m short ov time plzzz help me out
Last year when I started implementing interface elements to model material failure, I realized that the formulation is easy except how to generate a mesh with interface elements. I did a googling to search for such a free program. Amazingly, I did not find any although there are many researchers working on the fracture mechanics field.
So, I wrote a small object-oriented C++ program which reads a FE mesh, duplicates nodes and insert interface elements where asked. The program is able to
(1) insert 1D/2D interface elements everywhere in a FE mesh