Stress Distribution Around a Circular Hole in Square Plates, Loaded Uniformly in the Plane, on Two Opposite Sides of the Square

Erickson, M.; Durelli, A. J.

doi:10.1115/1.3157575

Cited by 9 publications

(1 citation statement)

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“…The mechanical model of a circular hole in compression is shown in the Fig.12. The analytical expression of stress of the hole when the model subjected to compressive stress σ1 is (Erickson, M. and Durelli, A. J., 1981;Fan, H., et al, 2020):…”

Section: Stress Analysis Of Rock With Circular Hole Under Compressionmentioning

confidence: 99%

Study on failure mechanical characteristics and damage constitutive model of sandstone with different numbers of holes

Peng

Liu

2020

Lat. Am. j. solids struct.

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The existence of holes in rock is one of the key factors for the instability of underground rock mass engineering. Combined with acoustic emission equipment, uniaxial compression tests of rock specimens with different numbers of holes in the rock were carried out. The results show that with the number of holes increases, the value of peak strength and elastic modulus of the rock decrease. The acoustic emission (AE) counts gone through stable, slow increase, a sudden increase and towards zero four stages and there are corresponding to the initial compaction stage, elastic stages, strain hardening stage and post-peak strain softening stage of the stress-strain curves approximately. Based on the AE events, damage variables of rocks were obtained. The damage evolution process of rock can also be divided into three parts, including stable damage stage, slowly increasing damage stage and sharply increasing damage stage. According to Duncan model, the damage variable is introduced to obtain the rock damage constitutive model. No matter it is the pre-peak initial compaction stage, the linear elasticity stage, the strain hardening stage or the post-peak strain softening stage, the fitting curves are in good agreement with the test curves. It also illustrates the rationality of the damage constitutive model.

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Section: Stress Analysis Of Rock With Circular Hole Under Compressionmentioning

confidence: 99%