Specialists Meeting on Impact Damage Tolerance of Structures
Abstract
A Specialists Meeting was held by AGARD in September 1975 to stimulate collection of data for a manual, expected to be completed in late 1977, on the subject of the resistance of aircraft structure to the impact of projectiles. There is a great need to extend past AGARD work on the subject (AGARD Advisory Report AR-47 on 'Physical Vulnerability of Aircraft') to include design methodology and the proposed manual is intended to do this. Among the subjects covered in this exploratory conference were: Blast effects; the types of damage produced by different projectiles; the failure characteristics of the structure under load and its residual strength and life after damage; the relationship between spread of damage, materials used, and detail design features; the degree of projectile penetration and the related hydraulic ram effect in fuel tanks; and distribution of size, velocity and direction of engine debris fragments and their effect on structure. The relationship to improved aircraft damage tolerance of such factors as: The use of armor and deflectors; the employment of modified engine design (to cause blade failure to be more likely than disc failure and to contain a large portion of the resultant debris) ; the effectiveness of analysis of damaged structures; and the utilization of methods of improvement of overall aircraft layout are also considered.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1976
- Accession Number
- ADA021294
Entities
Organizations
- AGARD