Quantitative characterization of microcracking in brittle materials by finite element modeling

✍ Scribed by Li Zhonghua; Zhao Yong; S. Schmauder; M. Dong

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 546 KB
• Volume: 51
• Category: Article
• ISSN: 0013-7944
• DOI: 10.1016/0013-7944(95)00030-y

✦ Synopsis

A numerical procedure is described for directly simulating the generation of a microcrack process zone around a crack during loading. The interactions between microcrack-microcrack and microcrack-main crack were realized and certain effects of interaction predicted by the theoretical model are corroborated by the numerical analyses. However, as our model takes several interactions, e.g. interactions among microcracks, into account, some essential features of microcracking revealed by the simulation are physically different from the prime hypothesis of the continuum model and provide some insights into the toughening mechanisms of microcracking.