Published October 1976 | Version v1
Report Restricted

Effect of angleplying and matrix enhancement on impact-resistant boron/aluminum composites

Creators

Description

Efforts to improve the impact resistance of B/Al are reviewed and analyzed. Tensile and dynamic modulus tests, thin sheet Charpy and Izod impact tests, and standard full size Charpy impact tests were conducted on 0.20 mm (8 mil) diameter-B/1100 Al matrix composites. Angleplies ranged from unidirectional to +- 30 deg. The best compromise between reduced longitudinal properties and increased transverse properties was obtained with +- 15 deg angleply. The pendulum impact strengths of improved B/Al were higher than that of notched titanium and appear to be enough to warrant consideration of B/Al for application to fan blades in aircraft gas turbine engines

Availability note (English)

MF available from INIS under the Report Number; Available from NTIS., PC A03/MF A01.

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Additional details

Publishing Information

Imprint Pagination
31 p.
Report number
N--76-33293

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
9362516
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
AIRCRAFT; ALUMINIUM; BORON; CHARPY TEST; COMPOSITE MATERIALS; ELASTICITY; IMPACT STRENGTH; IMPACT TESTS; TENSILE PROPERTIES; TURBINE BLADES
Descriptors DEC
DESTRUCTIVE TESTING; ELEMENTS; MATERIALS TESTING; MECHANICAL PROPERTIES; MECHANICAL TESTS; METALS; SEMIMETALS; TESTING

Optional Information

Secondary number(s)
NASA-TN-D--8205; E--8673.