Toughening mechanisms in Al/Al-SiC laminated metal composites

Book · Tue Dec 31 04:00:00 EST 1996

OSTI ID:490776

Lesuer, D R; Wadsworth, J; Riddle, R A; Syn, C K ^[1]; Lewandowski, J J ^[2]; Hunt, Jr, W H ^[3]

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1. Lawrence Livermore National Lab., CA (United States)
2. Case Western Reserve Univ., Cleveland, OH (United States)
3. Alcoa Technical Center, Alcoa Center, PA (United States)

The fracture toughness of laminated metal composites consisting of alternating layers of a metal matrix composite (Al6090/SiC/25p) and a monolithic aluminum alloy (Al5182) has been studied as a function of the volume fraction of the component materials. Finite element simulations of the fracture toughness tests have been used to study the mechanisms of crack growth and extrinsic toughening. The mechanisms responsible for toughening in laminated metal composites are described.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 490776
• Report Number(s): CONF-960401--; ISBN 1-55899-337-1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM BASE ALLOYS
COMPOSITE MATERIALS
CONCENTRATION RATIO
CRACK PROPAGATION
EXPERIMENTAL DATA
FINITE ELEMENT METHOD
FRACTURE PROPERTIES
INTERFACES
LAYERS
SILICON CARBIDES
SIMULATION