Fracture mechanics behaviors of fissured rock under dynamic loading: a review

Internal fissures in rocks are an important factor that complicate the mechanical response of rock under external loading. With the development of numerous geotechnical projects involving dynamics, research on the dynamic response characteristics of fissured rock under dynamic loading has been a trending issue in recent years. The purpose of this paper is to summarize the research of numerical and experimental methods on the influence of dynamic loading on the properties of fissured rock samples. From the perspective of rock dynamics, damage mechanics, and fracture mechanics, the influence of fissure characteristics on the mechanical properties and failure modes of rock under dynamic loading are further analyzed. By analyzing the fracture propagation mechanism of different fissured rock samples under dynamic loading, the relationship between the strength and failure characteristics of different fissured rock samples is explored. This investigation is of great significance to further study the mechanical characteristics and failure law of complex fissured rock under dynamic loadings.

Automated summary

This paper summarizes the research on the influence of dynamic loading on the properties of fissured rock samples using numerical and experimental methods. The impact of fissure characteristics on the mechanical properties and failure modes of rock under dynamic loading is analyzed, and the relationship between the strength and failure characteristics of different fissured rock samples is explored.