In order to accurately predict the structure fracture caused by thermal load, a modified maximum tensile stress (MTS) criterion combined with T-stress is proposed.,e modified MTS uses a two-parameter model (stress intensity factor K and T-stress) to describe the fracture behavior under thermal load.,e T-stress and stress intensity factor at the crack tip are solved by using J-integral in the theoretical calculation of a cracked strip with temperature difference.,e results show that T-stress can affect the fracture toughness and the stress at the crack tip of the cracked strip with temperature difference.,is provides a basis for the simulation of structural fracture under thermal load.
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