Hi
I am trying to use the user-defined subroutine functionality in ABAQUS 6.11. I have set up a simple test case of an object (cube) being displaced harmonically in time (DISP.FOR, Standard Implicit). The subroutine DISP.FOR is shown at the end of the post.
hi
i 've modeled a submerged cylinder subjected to underwater explosion.
there is an example of this problem in Abaqus Example Documentation.
"9.1.3 RESPONSE OF A SUBMERGED CYLINDER TO AN UNDERWATER EXPLOSION
SHOCK WAVE"
i have modeled the problem and analysed but the U1 Translation Graph for Endcaps is different to original example graph.
the velocity of endcaps during explosion is negative , but for my analys its positive !
I have a question about the EQUATION constraint to apply periodical boundary conditions via Script in Abaqus. The detailes is as follows
(1) Create the node sets firstly in the PART Module;
(2) Using script to create node sets containing only one node;
(3) Using the following script to establish the EQUATION constraint
mdb.models['Job-1'].Equation(name=’Constraint-1′, terms=((1.0,
‘PART-1-1.Node-1′, 1), (1.0, ‘PART-1-1.Node-2′, 1), (-1.0, ‘RP1′, 1)))
Violating the law of energy conservation, Zanaboni Theorem is invalid
and Zanaboni's proof is wrong. Zanaboni's mistake of " proof " is analyzed.
Energy Theorem for Zanaboni Problem is suggested and proved.
Equations and conditions are established in this paper for Zanaboni Problem,
which are consistent with , equivalent or identical to each other. Zanaboni
Theorem is, for its invalidity , not a mathematical formulation or
proof of Saint-Venant's Principle.
This paper is accepted at Structural Engineering and Mechanics; An international journal.
Hi
dear.
I
have a question about abaqus soil modeling
In
soil abaqus modeling I want know that when I assign a plastic properties(mechanical
plasticity) such as mohr moulomb,in
cohesion tab we see two data that I don’t know what data I can insert there.two parameters are :
cohesion yield stress and abs plastic strain.
Plz
give me a true data parameters.and friction angle and dilation angle about one
soil
The Statement of Modi ed Saint-Venant's Principle is suggested. The
axisymmetrical deformation of the infi nite circular cylinder loaded by an
equilibrium system of forces on its near end is discussed and its formulation of Modi ed Saint-Venant's Principle is established. It is evident that
fi nding solutions of boundary-value problems is a precise and pertinent
approach to establish Saint-Venant type decay of elastic problems. T
Announcing a preprint available at <http://arxiv.org/abs/1210.7174>:
An Energy-Deformation Decomposition for Morphoelasticity
Isaac Vikram Chenchiah, Patrick D. Shipman
Hello friends,
Greetings! I used Msc Patran to create a 2D mesh. Using mesh properties I solved a time-dependent partial differential equation using finite element in that domain through c code. Now,I have nodal values at different time. I would like to plot contours using those nodal values. I came to know Patran can do this. If so , can someone give some tips or guide me to an example.
Thank you.
Dear all,
Hi
I am phd student of mechanical engineering. I am working about dislocation density based model for plastic deformation. I wanna write UMAT for describe used material behavior. Can everyone give me experiences about DD model in FEM? Please help me about writing UMAT for this issue.
Thank you,
S. Bagherzadeh
