Accession Number : AD0742338

Title :   Dynamic Response of a Cylinder Buried in an Earth Berm - Results of a Finite Element Analysis.

Descriptive Note : Final rept. Dec 70-Aug 71,

Corporate Author : NAVAL CIVIL ENGINEERING LAB PORT HUENEME CALIF

Personal Author(s) : Ferritto,J. M.

Report Date : APR 1972

Pagination or Media Count : 77

Abstract : A cylinder buried in an earth berm and subjected to a blast loading has been analyzed by use of a nonlinear-large-deformation, finite element computer program. The results of the analysis have been compared with experimental data. The orientation of loading, mode of failure, and crack propagation indicated by the analysis agree with experimental observations. The finite element technique and the assumptions made in the solution are discussed as they relate to the problem. A mesh parameter study was performed to optimize mesh size and time increment without degradation of the results. Ground motions were computed and compared with experimental data. Peak velocity data gave good agreement with experimental measurements, whereas peak accelerations gave fair agreement. (Author)

Descriptors :   (*UNDERGROUND STRUCTURES, *NUCLEAR EXPLOSION DAMAGE), (*PANELS, EXPLOSION EFFECTS), (*NUCLEAR EXPLOSIONS, UNDERGROUND STRUCTURES), NUMERICAL ANALYSIS, STRUCTURAL PROPERTIES, SOILS, FLOORS, TNT, BLAST, CYLINDRICAL BODIES, SHEAR STRESSES, SHOCK(MECHANICS), LOADS(FORCES), MATHEMATICAL PREDICTION

Subject Categories : Structural Engineering and Building Technology

Distribution Statement : APPROVED FOR PUBLIC RELEASE