Accession Number : ADA316861

Title :   Hp-Adaptive Finite Element Methods for Time Dependent Problems with Applications to Stress Waves in Solids.

Descriptive Note : Final progress rept. 15 Jun 92-14 Jun 96,

Corporate Author : TEXAS UNIV AT AUSTIN

Personal Author(s) : Oden, J. T.

PDF Url : ADA316861

Report Date : AUG 1996

Pagination or Media Count : 4

Abstract : The general goals of this project included the development of new, high-order, adaptive methods for the computer simulation of stress-wave propagation phenomena in solid mechanics, particularly elastodynamics. The motivation for using adaptive methodologies is to control and optimize the computational process, to use a posteriori error estimates to optimize meshes and spectral orders of approximation. Such orchestrated meshing can produce exponential rates of convergence, thereby allowing complex simulations to be done using orders-of-magnitude fewer unknowns than standard methods.

Descriptors :   *COMPUTERIZED SIMULATION, *TIME DEPENDENCE, *FINITE ELEMENT ANALYSIS, *SOLIDS, *WAVE PROPAGATION, *STRESS WAVES, METHODOLOGY, MECHANICAL PROPERTIES, COMPUTATIONS, PROBLEM SOLVING, ESTIMATES, MECHANICS, ERROR ANALYSIS, ADAPTIVE SYSTEMS, STANDARDIZATION, ADAPTATION, ELASTIC WAVES.

Subject Categories : Numerical Mathematics
      Computer Programming and Software
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE