Testing of Mode-I Fracture Toughness of Sandstone Based on the Fracturing Mechanism of an Explosion Stress Wave

Xiao, Dingjun; Yang, Wentao; Liu, Chuanju; Hu, Rong

doi:10.1007/s00603-022-03047-8

Cited by 4 publications

(1 citation statement)

References 32 publications

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“…roviding the strength, reliability and safety of critical structures requires studying their mechanical behavior not only under standard conditions but also in case of microdefects nucleation and propagation [1,2]. Numerical modeling is a broad approach encompassing a range of techniques and models, which uses computational methods and algorithms to simulate and analyze the mechanical behavior of materials under various conditions, including stress and fracture in the context of materials science and engineering [3][4][5][6][7]. There are many approaches (finite element method [8], P extended finite element method [9][10], extended virtual element method [11][12], peridynamics [13], finite element discretized symplectic method [14], meshfree method [15], etc.)…”

Section: Introductionmentioning

confidence: 99%

Fracture processes numerical modeling of elastic-brittle bodies with statistically distributed subregions strength values

Feklistova,

Mugatarov,

Wildemann

et al. 2024

Frattura Ed Integrità Strutturale

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This work is devoted to the fracture processes numerical modeling of elastic-brittle bodies taking into account the statistical distribution of subregions strength values and stress concentration. The novel formulation of the boundary value problem and its solution algorithm are developed. The loading diagrams obtained in computational simulations, the corresponding growth curves of the destroyed elements relative number and the damaging process kinetics are analyzed. The presence of the postcritical deformation stage at the macro-level is noted. The influence of the strength properties distribution range and the depth of the concentrator on the maximum load value and the damage evolution is determined. The significant influence of the finite elements’ properties distribution on the fracture processes modeling results is concluded.

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