Animation: Biomechanical reduction test set-up
This short animation illustrates the set up of a femoral head reduction test. The items shown – a femur, a femoral stem with a femoral head, and an acetabular liner – will be tested in a manner that simulates the instantaneous reduction that occurs to a subluxed femoral head upon heel strike during human gait.
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To define a piece of LaTeX, place the code between [ latex ]…[ /latex ] (without the spaces between the square brackets). Continue reading
The publication, “Caveats concerning conjugate stress and strain measures (click to download)” contains an analytical solution for the stress in a fiber reinforced composite in the limit as the matrix material goes to zero stiffness. Because the solution is exact for arbitrarily large deformations, it is a great test case for verification of anisotropic elasticity codes, and it nicely illustrates several subtle concepts in large-deformation continuum mechanics.
Also see related viewgraphs entitled “The distinction between large distortion and large deformation.”
A tutorial on the underlying theory of projecting a stress state back to the plastic yield surface.
You may download the document here, or view just view the graph.
A self-study introduction to the general theory applied to 3-D Euclidean space. (It helps to read the “Elementary Vector and Tensor Analysis” document before attempting this one).
You may download the document here.
An overview book chapter of Computational Methods in Lagrangian and Eulerian Hydrocodes by David Benson.
You may download the rest of the document here.
An overview book chapter of classical constitutive material models by Kaspar Willam.
You may download the rest of the document here.
When viewing these pdf documents, you may want to select “rotate pages” from the Document pull-down menu in Adobe acrobat reader.
You may download these documents here.
FORTRAN source code for a program that computes all elastic constants when you give it any two independent ones. Continue reading
FORTRAN source code for a program that does simple pre-processing tasks, many of which are especially useful for converting fortran source code (e.g., changing all in-line comments to ANSI standard F77 style).
You may download the rest of the document here.
University of Utah CSM Group 