Accession Number:

ADA007329

Title:

Inelastic Response of Ring-Stiffened Cylindrical Shells to External Pressure Shock Waves,

Descriptive Note:

Corporate Author:

NOTRE DAME UNIV IND COLL OF ENGINEERING

Personal Author(s):

• Lee,L. H. N.
• Horng,J. T.

Report Date:

1975-03-01

Pagination or Media Count:

66.0

Abstract:

An incremental finite-differences approach based on an absolute minimum principle in dynamic finite plasticity is developed to study the inelastic response of ring-stiffened cylindrical shells to underwater explosions. The pressure in the shock wave caused by an underwater explosion is treated as a prescribed transient load acting on a shell. Numerical results for five cases are presented. The results indicate that dynamic stress concentrations and yielding occur in the shell near the ring stiffeners or other hard points.

Descriptors:

• *SHELLS(STRUCTURAL FORMS)
• *UNDERWATER EXPLOSIONS
• *DYNAMIC PRESSURE
• *RING STIFFENED CYLINDERS
• STRESS STRAIN RELATIONS
• COMPUTER PROGRAMS
• DYNAMIC RESPONSE
• SHOCK WAVES
• FINITE DIFFERENCE THEORY
• PLASTIC PROPERTIES

Subject Categories:

• Marine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE