Subcritical crack growth at bimaterial interfaces. Part 1: Flexural peel technique

Journal Article · Sun Dec 31 23:00:00 EST 1995 · Metallurgical Transactions, A

DOI:https://doi.org/10.1007/BF02647760· OSTI ID:203531

Zhang, Z; Shang, J K ^[1]

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1. Univ. of Illinois, Urbana, IL (United States). Dept. of Materials Science and Engineering

A flexural peel (FP) technique was developed to study the crack growth behavior along a bimaterial interface. The technique was based on a sandwich specimen where one arm of the specimen was peeled away from the interface under a combined tensile and shear mode. An approximate linear elastic fracture mechanics solution was derived analytically from the J integral formulation. The solution was compared to finite element calculations based on the crack closure method and experimental measurements. From the finite element analysis, ratios of the mode-I and mode-II components of the crack tip field were determined for a wide range of modulus and thickness ratios.

• Sponsoring Organization: USDOE
• OSTI ID: 203531
• Journal Information: Metallurgical Transactions, A, Journal Name: Metallurgical Transactions, A Journal Issue: 1 Vol. 27; ISSN 0360-2133; ISSN MTTABN
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CERAMICS
COMPOSITE MATERIALS
CRACK PROPAGATION
CRACKS
FINITE ELEMENT METHOD
FRACTURE MECHANICS
FRACTURE PROPERTIES
INTERFACES
METALS
POLYMERS
SHEAR PROPERTIES
TENSILE PROPERTIES