a recent pre-print about the mechanics of plectonemic DNA in extension-rotation experiments (under submission Biophysical Journal)
http://arxiv.org/abs/0811.1840
Journal version: http://www.cell.com/biophysj/abstract/S0006-3495(09)00564-5
Authors: N. Clauvelin, B. Audoly, S. Neukirch
Abstract:
Hi all,
I am krishna working on FE knee joint modeling in ABAQUS. I am beginner to Abaqus
As i have read from the journal papers, I understood that cartilage and meniscus are poroelastic (porous medium).
My axisymmetric model consists of following.
1. Cartilage is modelled with CAX4PH (axisymmetric pore pressure elements)
2. Meniscus is also with the same elements
3.Tibial bone with CAX4 elements.
Since
contact beween two deformable bodies create computational difficulties,
a recent pre-print concerning the elasticity of a knotted rod (submitted to Journal of the Mechanics and Physics of Solids)
http://arxiv.org/abs/0812.2881
Authors: N. Clauvelin, B. Audoly, S. Neukirch
Abstract:
I have no mechanics background so be gentle. Looking for advice on how to approach this problem:
I have a long, slender, straight beam that is then bent into a curve using wire rope as a tension element between either end. Very similar to an archery bow.
Hello,
I am trying to figure out how to call UMAT through the abaqus command. I have a local abaqus licence. How do I get into the command window to type in the commands? I have installed fortran. I am trying to run one of the examples in the manual which gives me the .inp file and .f file. I went through a number of forums and the manual which tells me to use compile_fortran and abaqus make commands. Can someone guide me through the procedure? I am using version 6.7-5.
Thank you
Hi all,
How to perform post-buckling analysis using ABAQUS correctly?
I have obtained an eigenvalue from a linear analysis using BUCKLE command. The shape from mode 1 is good (tally with the physical experiment).
However, the result from the post-buckling analysis (using IMPERFECTION command and RIKS analysis) has not produced the buckling shape like the mode 1 from the linear analysis.
If you all have any suggestion, please share it with me. Greatly need it.
Thanks,
Wanbot
Hi,
Can anyone please tell me the constitutive or the 'C' matrix for a linear viscoelastic material model (with no relaxation in bulk)? I have been using the one outlined in the Computaional Mechanics book by Simo and Taylor, but I feel that ANSYS is using a different matrix as my results are different from ANSYS. I could not find details about the 'C' matrix for a viscoelastic material anywhere else. Any links too might be helpful.
Thanks,
Shriram
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My research interest focuses on concrete damage constutitive model and its numerical implementation, performance-based seismic design of bridge structures, variational integrand method and conservative propertied of irreversible process, methmatical base of damage theory .Now I work as a postdoctoral research till Sep. 2009 at Tongji University, P R China. My current research are supported partly by China Postdoc Fund Committee and Shanghai Postdoc Fund Committee.
Hi,
I am trying to model a piezo disc bonded to a steel plate for lamb wave simulation. I am currently modeling the piezos as rectangular with nodes coincident with the plate nodes and just coupling them. I would like to do that with a circular geometry for the piezos, but for that I need to define nodes in the disc that coincide with the plate nodes. How can I do that? Can I define my own node locations in a volume for meshing? Thanks in advance for your help.
Muhammad Haroon
