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Effects of Material Heterogeneity on the Blast-Induced Rock Crack Initiation and Propagation

Shuyu Wang¹, Linjuan Wang^1,*, Yunteng Wang²

1 School of Astronautics, Beihang University, Beijing, 100191, China
2 Institut für Geotechnik, Universität für Bodenkultur Wien (BOKU), Feistmantelstraße 4, 1180 Wien, Austriay

* Corresponding Author: Linjuan Wang. Email:

The International Conference on Computational & Experimental Engineering and Sciences 2023, 27(3), 1-1. https://doi.org/10.32604/icces.2023.09217

Abstract

Material heterogeneity plays an important role in the blasting induced rock fracture. However, the investigation of the effects of material heterogeneity is limited by the numerical methods for dynamic fracture. In the work, we propose a peridynamic model for brittle rock with heterogeneous micro-modulus and critical stretch to investigate the effects of material heterogeneity on the blast-induced rock crack initiation and propagation. The discretization in polar coordinates is introduced into the proposed model to avoid the fallacious directional guidance to the crack initiation around the hole. The proposed model satisfies the

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Keywords

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