Accession Number : ADA282249

Title :   Numerical Computations With ABAQUS/EXPLICIT, DYNA3D, and DYSMAS/L.

Descriptive Note : Final rept.,

Corporate Author : NAVAL SURFACE WARFARE CENTER DAHLGREN DIV SILVER SPRING MD

Personal Author(s) : Moussouros, Minos

Report Date : 01 APR 1994

Pagination or Media Count : 66

Abstract : The purpose of this study is to report two types of numerical experiments. First, a structural problem was modeled using the ABAQUS/Explicit, DYNA3D, and DYSMAS/L computer programs. The problem consisted of the classic problem of Witmer; i.e., an explosive detasheet was tested on a cylindrical panel and the permanent set deflection was measured and compared with the three numerical predictions. Secondly, the problem of a water column impacting on a series of flat or curved, rigid or flexible panels was modeled using the DYNA3D computer program. Due to the lack of experiniental data, the calculations were compared to limited Eulerian computer program (CTH) results. Finite element analysis, Cylindrical shell, Water slug.

Descriptors :   *COMPUTER PROGRAMS, *COMPUTATIONAL FLUID DYNAMICS, *LOADS(FORCES), DEFLECTION, EXPLOSIVES, FINITE ELEMENT ANALYSIS, PANELS, AIR FLOW, MATHEMATICAL PREDICTION, CYLINDRICAL BODIES, COMPUTATIONS, STAGNATION PRESSURE, COMPUTERIZED SIMULATION, STRUCTURAL MECHANICS, VELOCITY, STRESS STRAIN RELATIONS.

Subject Categories : Fluid Mechanics
      Mechanics
      Computer Programming and Software
      Numerical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE