Postdoctoral Fellow, Computational Biomechanics
University of Utah, SCI Institute and Department of Bioengineering

We have an immediate opening for a postdoctoral fellow to work on the
development and application of a (quasi) meshles analysis technique
called Material Point Method to the simulation of cardiac mechanics.
This is an 18 month Phase I project funded by DARPA. The project will
likely lead to a much larger and longer-term Phase II project.

This is a collaborative project between the SCI Institute
( and the Department of Bioengineering
( The PI on the project is Chris Johnson, and the
co-PIs are Martin Berzins, Mike Kirby, Ross Whitaker and myself. It is
part of a multi-institutional collaborative effort that includes
investigators at the University of Utah, UCSD, University of Aukland,
Stanford University and the University of Michigan. We are looking for
a person to work on Aim 2:

2. Apply the Material Point Method (MPM) to the simulation of normal
cardiac mechanics within the cardiac/torso model. This method will
provide a means to circumvent mesh generation and mesh entanglement
issues associated with the finite element method, while allowing
substantial changes in cardiac anatomy and associated domain topology
due to wounding for the phase II effort.

The position begins October 1, 2003 and ends March 31, 2005. The ideal
candidate will have an understanding of the basic concepts of nonlinear
solid mechanics (finite deformation theory and hyperelasticity) and C++
programming skills. Experience with MPI programming is preferred. The
research will include implementation of active anisotropic hyperelastic
constitutive models in the existing MPM code (MPI-based program for
Linux clusters) and performing simulations of left ventricular mechanics
during the cardiac cycle. Validation will include comparison to
solutions obtained using the finite element method. The fellow will
work with a team of faculty, postdocs and graduate students. The
research under Aim 3 is well-defined with a clear endpoint, and it will
certainly lead to peer-reviewed publications.

An overview of the Material Point Method can be found at:

Interested candidates should submit a brief introductory letter,
curriculum vitae and the names of at least three references to me at the
email address below. Candidates must be available to start on or before
Jan 1, 2004.

Jeffrey A. Weiss, Ph.D.
Department of Bioengineering, University of Utah

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