Parallel adaptive mesh refinement techniques for plasticity problems
- Carnegie Mellon Univ., Pittsburgh, PA (United States). Dept. of Civil and Environmental Engineering
- Virginia Polytechnic Institute, Blacksburg, VA (United States). Dept. of Electrical and Computer Engineering
- Argonne National Lab., IL (United States)
The accurate modeling of the nonlinear properties of materials can be computationally expensive. Parallel computing offers an attractive way for solving such problems; however, the efficient use of these systems requires the vertical integration of a number of very different software components, we explore the solution of two- and three-dimensional, small-strain plasticity problems. We consider a finite-element formulation of the problem with adaptive refinement of an unstructured mesh to accurately model plastic transition zones. We present a framework for the parallel implementation of such complex algorithms. This framework, using libraries from the SUMAA3d project, allows a user to build a parallel finite-element application without writing any parallel code. To demonstrate the effectiveness of this approach on widely varying parallel architectures, we present experimental results from an IBM SP parallel computer and an ATM-connected network of Sun UltraSparc workstations. The results detail the parallel performance of the computational phases of the application during the process while the material is incrementally loaded.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 570169
- Report Number(s):
- ANL/MCS/P-677-0797; CONF-9710135-; ON: DE97054211; TRN: 98:001094
- Resource Relation:
- Conference: 4. NASA national symposium on large-scale analysis and design on high-performance computers and workstations, Williamsburg, VA (United States), 15-17 Oct 1997; Other Information: PBD: 1997
- Country of Publication:
- United States
- Language:
- English
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