The main objective of this study is to determine the crack tip position during propagation of mode I delamination and also to evaluate interlaminar fracture toughness (G(IC)) in glass/epoxy composite specimens. The crack tip location was identified using two methods: a) localization of the AE signal source and b) the cumulative AE energy. Interlaminar fracture toughness of the specimens was also determined using the ASTM standard methods and the AE-based methods. The AE-based methods results were in a close agreement with the results of ASTM standard. It was found that the novel AE-based methods are more applicable than conventional methods for characterization of the delamination. (C) 2015 Elsevier Ltd. All rights reserved.
Prediction of quasi-static delamination onset and growth in laminated composites by acoustic emission / Saeedifar M.; Fotouhi M.; Ahmadi Najafabadi M.; Hosseini Toudeshky H.; Minak G.. - In: COMPOSITES. PART B, ENGINEERING. - ISSN 1359-8368. - ELETTRONICO. - 85:(2016), pp. 113-122. [10.1016/j.compositesb.2015.09.037]
Prediction of quasi-static delamination onset and growth in laminated composites by acoustic emission
Minak G.
2016
Abstract
The main objective of this study is to determine the crack tip position during propagation of mode I delamination and also to evaluate interlaminar fracture toughness (G(IC)) in glass/epoxy composite specimens. The crack tip location was identified using two methods: a) localization of the AE signal source and b) the cumulative AE energy. Interlaminar fracture toughness of the specimens was also determined using the ASTM standard methods and the AE-based methods. The AE-based methods results were in a close agreement with the results of ASTM standard. It was found that the novel AE-based methods are more applicable than conventional methods for characterization of the delamination. (C) 2015 Elsevier Ltd. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
