Failure analyses of filament-wound graphite/epoxy cylinders under biaxial loading

Journal Article · Tue Oct 01 00:00:00 EDT 1985 · SAMPE Q.; (United States)

OSTI ID:5136451

Marloff, R H; Raghava, R S

This paper discusses macroscopic and microscopic failure behavior of filament-wound (90/+/-20)/sub s/ graphite/epoxy thin-wall cylinders subjected to biaxial loading. Experimental results, elastic constants, and strengths are compared with analytical predictions. The Tsai-Wu failure criterion gave reasonable agreement between theoretical and experimental results. Specimens machined from failed cylinders were examined using scanning electron microscopy. Interply and intraply cracking were observed. These microscopic failure mechanisms are not accounted for in any failure criterion available in the literature. 6 references, 8 figures, 2 tables.

• Research Organization: Westinghouse R and D Center, Pittsburgh, PA
• OSTI ID: 5136451
• Journal Information: SAMPE Q.; (United States), Vol. 17:1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COMPOSITE MATERIALS
STRESS ANALYSIS
CYLINDERS
EPOXIDES
EXPERIMENTAL DATA
FAILURES
FILAMENTS
GRAPHITE
THEORETICAL DATA
CARBON
DATA
ELEMENTAL MINERALS
ELEMENTS
INFORMATION
MATERIALS
MINERALS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
360303* - Composite Materials- Mechanical Properties- (-1987)