Journal
ENGINEERING FRACTURE MECHANICS
Volume 273, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2022.108741
Keywords
M-integral; Fracture; Damage; Crack problems; Experimental methods
Categories
Funding
- National Natural Science Foundation of China [12002256, 11772245]
- Fundamental Research Funds for the Central Universities in China [xjh012020014]
- Natural Science Basic Research Plan in Shaanxi Province of China [2020JQ-011]
- Natural Science Foundation in Zhejiang [LQ20A020010]
- Natural Science Foundation of Jiangsu [BK20200246]
- China Postdoctoral Science Foundation [2020M673374]
- K.C. Wong Education Foundation
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This paper reviews the historical investigation and state-of-the-art developments of the M-integral and its corresponding applications. It provides a comprehensive analysis of the origin, physical meanings, application in fracture mechanics, damage evolution, two-state M-integral, and experimental methods for measuring the M-integral. The article is particularly effective for failure analysis of multi-defected structures or advanced material systems.
This paper reviews the historical investigation and state-of-the-art developments of the M-integral and corresponding applications, from five key perspectives. Firstly, the origin of the M-integral and the cognitive process of its physical meanings have been recalled. Secondly, within the framework of fracture mechanics, attention is paid to the application of the M-integral in solving specific fracture problems, including the calculation of stress intensity factor, Zener's crack analysis and the fracture of piezoelectric materials. Thirdly, the use of the M-integral in describing damage evolution, damage or failure criteria and defect interactions of complex damage processes is summarized. Fourthly, the so-called two-state M-integral is discussed, with a focus on case studies including the fracture and damage induced by a composite wedge, nano-inclusions, etc. Last but not least, the experimental methods for measuring the M-integral are reviewed from different perspectives (e.g., contact and non-contact types). In conclusion, this article provides a comprehensive review of the developments and applications of the M-integral, and is particularly effective for failure analysis of multi-defected structures or advanced material systems.
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