Failure mechanisms of composite plates with a circular hole under remote biaxial planar compressive loads

Journal Article · Tue Dec 31 23:00:00 EST 1996 · Journal of Engineering Materials and Technology

DOI:https://doi.org/10.1115/1.2805974· OSTI ID:445273

Khamseh, A R ^[1]; Waas, A M ^[2]

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1. Chrysler Motors, Detroit, MI (United States)
2. Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Aerospace Engineering

The authors report the results of an experimental investigation carried out for the analysis of failure mechanisms in fibrous laminated composite plates containing stress raisers, in the form of circular cutouts, under static biaxial planar compressive loading (i.e., compression in the two inplane orthogonal directions). A series of biaxial tests were carried out with 48 ply graphite/epoxy composites of varying fiber orientation. In all cases, the hole diameter to plate with aspect ratio remained in a range suitable for infinite plate assumptions. Fiber microbuckling, fiber kink banding, and fiber/matrix debonding are identified as the dominant failure mechanisms.

• Sponsoring Organization: USDOE
• OSTI ID: 445273
• Journal Information: Journal of Engineering Materials and Technology, Journal Name: Journal of Engineering Materials and Technology Journal Issue: 1 Vol. 119; ISSN 0094-4289; ISSN JEMTA8
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CARBON FIBERS
COMPOSITE MATERIALS
COMPRESSION STRENGTH
EPOXIDES
EXPERIMENTAL DATA
FAILURES
MECHANICAL TESTS
ORIENTATION
SAMPLE PREPARATION
STRAIN GAGES
STRESSES