Evaluation of Interlaminar Damage and Crack Propagation through Digital Image Correlation Method |
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| Journal | Key Engineering Materials (Volume 399) |
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| Volume | Advances in Strength of Materials |
| Edited by | Liviu MARSAVINA |
| Pages | 105-112 |
| DOI | 10.4028/www.scientific.net/KEM.399.105 |
| Citation | Dan Mihai Constantinescu et al., 2008, Key Engineering Materials, 399, 105 |
| Online since | October, 2008 |
| Authors | Dan Mihai Constantinescu, Marin Sandu, Liviu Marsavina, Radu Negru, Matei Constantin Miron, Dragos Alexandru Apostol |
| Keywords | Crack Propagation, Digital Image Correlation (DIC), Local Damage, Sandwich Composite |
| Abstract | 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. |
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