Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Shear strength is a basic material parameter of rocks. It plays a vital role in the applications field of mining engineering and geotechnical engineering. Although static standards for measuring static shear strength of rocks are available, the shear behavior of rocks under the dynamic loading it is not well understood. This paper presents a punch device loaded by split Hopkinson pressure bar system (SHPB) to determine the dynamic shear strength of rocks. Thin disc samples are used to minimize bending stresses. An isotropic and fine-grained sandstone is used to demonstrate the measurement principle. It is observed that the shear strength of rocks increases with the loading rate. This device is applicable to fine-grained rocks with intermediate hardness.
Shear strength is a basic material parameter of rocks. It plays a vital role in the applications field of mining engineering and geotechnical engineering. Although static standards for measuring static shear strength of rocks are available, the shear behavior of rocks under the dynamic loading it is not well understood. This paper presents a punch device loaded by split Hopkinson pressure bar system (SHPB) to determine the dynamic shear strength of rocks. Thin disc samples are used to minimize bending stresses. An isotropic and fine-grained sandstone is used to demonstrate the measurement principle. It is observed that the shear strength of rocks increases with the loading rate. This device is applicable to fine-grained rocks with intermediate hardness.
A Dynamic Punch Method to Quantify the Dynamic Shear Strength of Brittle Solids
Conf.Proceedings of Society
Proulx, Tom (Herausgeber:in) / Huang, S. (Autor:in) / Xia, K. (Autor:in) / Dai, F. (Autor:in)
18.05.2011
7 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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