Numerical Study of the Effect of Compound Particles and Moment Stresses on the Failure of Granulate Materials in Compression

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Abstract

The effect of compound particles – pairs of particles rigidly connected to each other and moment stresses on failure of granulate materials in compression was investigated by using discrete element modelling software Particle Flow Code 2D. Microscopic shear failure was excluded by setting shear strength of particle bonds 7 times higher than the tensile strength. It was found that by adding compound particles the peak stress, crack damage stress and Young’s modulus increase and the fracture pattern changed. When moment stress was ignored the peak stress increased 4 times and localisation in fracture patterns was not observable. This suggests that it is the effect of tensile moment stresses can induce the formation of fracture patterns of the shear band type.
Original languageEnglish
Title of host publicationProceedings of the 10th International Conference on Structural Integrity and Failure
Subtitle of host publicationAdvances in Materials and Structures
EditorsA. Kotousov, J. Ma
Place of PublicationAustralia
PublisherAustralian Fracture Group Inc.
Pages177-181
Publication statusPublished - 2016
EventInternational Conference on Structural Integrity and Failure: Advances in Materials and Structures - Adelaide, Australia
Duration: 1 Jan 201114 Jul 2016

Conference

ConferenceInternational Conference on Structural Integrity and Failure
Abbreviated titleSIF
CountryAustralia
CityAdelaide
Period1/01/1114/07/16

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Xu, Y., Pasternak, E., & Dyskin, A. (2016). Numerical Study of the Effect of Compound Particles and Moment Stresses on the Failure of Granulate Materials in Compression. In A. Kotousov, & J. Ma (Eds.), Proceedings of the 10th International Conference on Structural Integrity and Failure: Advances in Materials and Structures (pp. 177-181). Australia: Australian Fracture Group Inc..