Structural Survivability Analysis
Abstract
Structural survivability studies require analysis of many similar structures. This paper describes a modification of the multiple configuration analysis technique of Melosh and Lulk (Reference 1) to perform fail-safe and invulnerability evaluations. The process incorporates the displacement approach and the finite-element concept for analysis of the initial structural system. Response predictions for the modified structures use the direct, the complementary energy and the potential energy methods. The approach yields approximate response predictions with accuracy decreasing directly with the number of damage steps. Applications illustrate the nature of the fail-safe analysis and the accuracy of invulnerability analyses. Described herein, a technique for approximate analysis, using the fail-safe results as a basis, shows its accuracy as a function of the number of damage steps.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1968
- Accession Number
- ADA447770
Entities
People
- J. R. Johnson
- R. J. Melosh
- Rein Luik