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一、破碎理论破碎理论主要有三种假说:面积假说、体积假说和裂缝假说。面积假说是雷廷格尔(P·R·Rittinger)于1867年提出的。认为破碎功耗与破碎过程中物料新生成表面的面积成正比,或内力的单元功 dA_1与物料的破断面的面积增量 ds 成正比。即 dA_1=k_1ds体积假说是1874年基尔皮切夫等提出的。认为破碎功耗与物料的变形体积成正比,或内力的单元功 dA_2与破碎物
First, broken theory There are three main theories of broken theory: area hypothesis, volume hypothesis and crack hypothesis. The area hypothesis was proposed by R. Rittinger in 1867. It is considered that the broken power consumption is proportional to the area of the newly generated surface of the material during the crushing process or the unit work dA_1 of the internal force is proportional to the area increment ds of the broken surface of the material. The dA_1 = k_1ds volume hypothesis was proposed in 1874 by Kippecchev et al. That the broken power consumption and the deformation of the material is proportional to the volume, or internal force unit work dA_2 and broken objects