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In this paper, an analytical solution for the full-range behavior of pipe joints under combined thermal and mechanical loadings is presented. The solution is based on a rigid-softening bond-slip model and compared with finite element results. Through the nonlinear fracture mechanics, the analytical expressions of the interfacial shear stress and the load-displacement relationship could be obtained. The stress transfer mechanism, the interface crack propagation and the ductility behavior of the joints could be explained.

debonding, temperature, pipe joints, interface