Accession Number : ADA183288

Title :   Post-Buckling, Damage Tolerance and Manufacturing Techniques for Advanced Composite Materials.

Descriptive Note : Final rept. Jun 83-Jun 86,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE TECHNOLOGY LAB FOR ADVANCED COMPOSITES

Personal Author(s) : Dugundji,John ; Lagace,Paul A ; Mar,James W ; Pian,Theodore H

PDF Url : ADA183288

Report Date : Aug 1986

Pagination or Media Count : 66

Abstract : This report describes a basic research program to study the post-buckling, the damage tolerance, and manufacturing techniques for various built-up, composite structures. Five separate investigations are briefly summarized here. These dealt with (1) buckling and failure studies of integrally stiffened graphite/epoxy panels, (2) finite element and experimental studies of buckling of laminated thin-wall, graphite structures, (3) damage tolerance of pressurized graphite/epoxy cylinders flawed with slits and holes, and (5) damage tolerance of graphite/epoxy cylinders with a high strain-to-failure matrix system. These studies help provide information on the use of graphite/epoxy composites in heavily loaded structures. For more thorough descriptions and details, refer to the individual reports cited here. Keywords: Advanced composites, Post buckling, Damage tolerance, Pressurized cylinders.

Descriptors :   *COMPOSITE MATERIALS, *COMPOSITE STRUCTURES, *MANUFACTURING, *BUCKLING, *TOLERANCES(MECHANICS), *DAMAGE ASSESSMENT, EXPERIMENTAL DATA, CYLINDRICAL BODIES, DAMAGE, EPOXY COMPOSITES, EPOXY RESINS, EXPERIMENTAL DATA, FAILURE, FINITE ELEMENT ANALYSIS, GRAPHITE, GRAPHITED MATERIALS, LAMINATES, LOADS(FORCES), PANELS, PRESSURIZATION, STRUCTURES, TOLERANCE, STRESS STRAIN RELATIONS, MECHANICAL PROPERTIES, STIFFENED CYLINDERS, THIN WALLS, LIFE EXPECTANCY(SERVICE LIFE), SLOTS, INTERNAL PRESSURE

Subject Categories : Laminates and Composite Materials
      Structural Engineering and Building Technology

Distribution Statement : APPROVED FOR PUBLIC RELEASE