Evaluation of Interlaminar Damage and Crack Propagation through Digital Image Correlation Method


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Interface damage characterization and interlaminar failure of sandwich specimens with two initial interlaminar defects (inserts) is done by using the digital image correlation method. Mode I tests reveal interesting particularities on damage localization and unstable crack propagation. After analyzing the experimentally obtained results, we propose as a failure parameter the local strain at the crack tip or, alternatively, the crack tip opening displacement which quantifies the non-linear phenomena.



Edited by:





D. M. Constantinescu et al., "Evaluation of Interlaminar Damage and Crack Propagation through Digital Image Correlation Method", Key Engineering Materials, Vol. 399, pp. 105-112, 2009

Online since:

October 2008




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