Composite Bombcase Program: Static tests on Kevlar/epoxy and graphite/epoxy plates and rings
An experimental study supporting the Composite Bombcase Program is described. The purpose of the study was to generate mechanical properties and structural response data on composite plates and cylinders. This data base is now available to assist in the evaluation of composite materials for bombcase applications. Two composites, Kevlar 49/epoxy and IM6 graphite/epoxy, were chosen for testing. The mechanical properties from flat unidirectional specimens were used to predict the elastic response of thick quasi-isotropic laminates in four-point bending and the elastic response of 18.0 inch diameter quasi-isotropic rings to diametral compressive loading. Good agreement between theoretical and experimental values of elastic response was obtained for both geometries. Load-deflection and load-strain curves in the elastic, post-yield, and failure regions were obtained for composite and aluminum rings. Delamination between plies was the principal failure mode in the QI composite plate and ring specimens. Even with many delaminations at large deflections, composite rings continued to carry load and retain some structural integrity.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 7130813
- Report Number(s):
- SAND-86-2163; ON: DE87002751
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COMPOSITE MATERIALS
MECHANICAL PROPERTIES
ALUMINIUM
ARAMIDS
BENDING
BOMBS
COMPRESSION STRENGTH
COVERINGS
ELASTICITY
EPOXIDES
FAILURE MODE ANALYSIS
GRAPHITE
PLATES
RINGS
SHEAR PROPERTIES
TENSILE PROPERTIES
CARBON
ELEMENTAL MINERALS
ELEMENTS
MATERIALS
METALS
MINERALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
SYNTHETIC MATERIALS
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
WEAPONS
360603* - Materials- Properties