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The Energy Efficient Soldier

By
Rebecca Brannon
– May 10, 2012Posted in: Announcements

Congratulations to Martin Berzins and the other four University of Utah faculty members, as well as collaborators at Boston University, Rensselaer Polytechnic, Penn State, Harvard, Brown, UC-Davis, and Polytechnic U (Turin Italy) on the recently awarded $16.4M 5-year project to use high-performance computing to aid in the development of more efficient and lighter power supplies for soldiers!  For more information, see the news release at http://unews.utah.edu/news_releases/the-energy-efficient-soldier/.

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Publication: Establishing credibility of particle methods through verification testing

By
Rebecca Brannon
– March 29, 2012Posted in: Uncategorized

Evidence of discretization texture bias in a simulation that is supposed to exhibit polar symmetry

 

ABSTRACT:

Within the particle methods community, standard benchmark tests are needed to demonstrate that the governing equations are solved correctly.Whereas the finite element method (FEM) has long-established basic verification standards (patch tests, convergence testing, etc.), no such standards have been universally adopted within the particle method community.

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Centroidal Voronoi Tesselations

By
Rebecca Brannon
– March 25, 2012Posted in: General Tutorials, Research

The CSM lab at the University of Utah is actively developing the Material Point Method (MPM). Like other particle methods, the MPM discretizes a body into a set of points at which problem data (velocity, stress, temperature, etc.) are stored.  Centroidal Voronoi Tesselation is a promising way to distribute points within a domain in a way that is favorable to the MPM, where using a distribution of particles conforming to the boundary is highly desired.  For a thorough overview, see Max Gunzburger’s website,  http://people.sc.fsu.edu/~mgunzburger/cvt/cvt.html.  Some excerpts from his site are shown below,

 

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Tutorial: A beginner’s introduction to the Material Point Method (MPM)

By
Rebecca Brannon
– March 13, 2012Posted in: General Tutorials, Supplements, Tutorials

The PowerPoint presentation,
000000_BRANNON_BeginnersIntroToMPM_revision100624,

describes the basic principles and application advantages of the material point method (MPM).

To follow this tutorial, you need  to know basic equations for the finite-element method.

 

 

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Handwritten notes on Vibrations

By
Rebecca Brannon
– March 13, 2012Posted in: Elementary write-ups

VibrationsHandNotes is a set of handwritten notes taken by Dr. Brannon when she was a student.

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Aldridge spherical source verification test for dynamic continuum codes

By
Rebecca Brannon
– March 13, 2012Posted in: Supplements, Validation, Verification

This post has the following aims:

  • Provide documentation and source code for a spherically symmetric wave propagation in a linear-elastic medium.
  • Tell a story illustrating how this simple verification problem helped to validate a complicated rate-dependent and history-dependent geomechanics model.
  • Warn against believing previously reported material parameters, since they might have been the result of constitutive parameter tweaking to compensate for unrelated errors in the host code.

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Thesis – Deepika Kakarla

By
Deepika Kakarla
– February 16, 2012Posted in: Uncategorized

Thesis_Final_DeepikaKakarla_Brannon

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Publication: A model for statistical variation of fracture properties in a continuum mechanics code

By
Rebecca Brannon
– January 30, 2012Posted in: Publications, Research

NEWS FLASH: The print version of the Meyer-Brannon paper on statistical variation of fracture patterns in a continuum code (CTH) is now available at http://dx.doi.org/10.1016/j.ijimpeng.2010.09.007.

Perforation with Aleatory Uncertainty

Perforation with Aleatory Uncertainty of high-pressure strength in an Eulerian Simulation.

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Current opportunities for graduate students

By
Rebecca Brannon
– January 24, 2012Posted in: Apply For Position

We currently have openings for two PhD students in the CSM group:

PhD Student Opening#1: Research opportunites exist in the general area of computational mechanics with emphasis on development of advanced methods (expecially particle methods) for solving large-deformation high-rate problems in mechanics.

PhD Student Opening#2: Research opportunites exist in the general area of computational and theoretical constitutive modeling, with emphasis on large deformation inelasticity, failure, fracture, induced anisotropy, etc. Applications would include hierarchical upscaling (i.e., inferring macroscale properties from microscale simulations).

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Current postdoc openings in the CSM group

By
Rebecca Brannon
– January 24, 2012Posted in: Apply For Position

We currently have one opening for a postdoc in the CSM group:

Opening #1 (click here)

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