Review of Experimental, Theoretical and Numerical Advances in Multi-Crack Fracture Mechanics

In engineering fracture problems, cracks tend to interact with each other rather than exist singly. In recent years, the phenomenon of multi-cracking has received attention from both academia and industry. This article firstly emphasizes the importance and research trends of crack interactions. The article then discusses the experimental observation and theoretical modeling of the multi-crack problem and compares the different numerical methods in detail. Finally, this paper offers a comprehensive summary and in-depth analysis of the advancements in multi-crack fracture mechanics, aiming to provide reliable support for solving the multi-crack problem in engineering.