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Observation of Damage Growth in Compressively Loaded Laminates

Chai, H. and Knauss, W. G. and Babcock, C. D. (1983) Observation of Damage Growth in Compressively Loaded Laminates. Experimental Mechanics, 23 (3). pp. 329-337. ISSN 0014-4851.

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An experimental program to determine tie phenomenological aspects of composite-panel failure under simultaneous compressive n-plane loading and low-velocity transverse impact [C-75 m/s (0-250 ft/s)] is described. High-speed photography coupled with the shadow-moiré technique is used to record the phenomenon of failure propagation. The information gained from these records, supplemented by plate sectioning and observation for interior damage, has provided information regarding the failure-propagation mechanism. The results show that the failure process can be divided roughly into two phases. In the first phase the plane is impacted, and the resulting response causes interlaminar separation. In the second phase the local damage spreads to the undamaged portion of the plate through a combination of laminae buckling and further delamination.

Item Type:Article
Additional Information:Original manuscript submitted: July 13, 1982. Final version received: May 25, 1983.
Issue or Number:3
Record Number:CaltechAUTHORS:CHAem83
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:20
Deposited By: Wolfgang Gustav Knauss
Deposited On:30 Nov 2004
Last Modified:02 Oct 2019 22:15

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