Abstract
Interactions occur between the contact bodies under the outside loads. The crossfeed is the dynamic changing process of the contact surface, named crossfeed surface, under the loads, which is an important task in civil engineering. Aiming at the shortcoming of the classical contact mechanics, in which the contact surface is considered smooth, with the help of the shearing and ploughing of the tribology, the mechanical behavior and correspond model of the interacted contact bodies were studied. Based on the fracture mechanics, the cohesion of the crossfeed surface varied with the contact areas was acquired, and the algorithm of the corssfeed mechanical model of the contact bodies was studied. Compared with the photo-elastic experiment of the joint sample, the result shows that the corssfeed mechanical model of the contact bodies is more practical than the traditional model.
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