A spatial nonlocal Green-Naghdi generalized thermoelasticity model based on bond-based peridynamics: Transient responses of laminated structures subjected to thermal shock

The Green-Naghdi generalized thermoelastic model is firstly extended based on the peridynamics and the thermo-mechanical response of laminated structures under thermal shock is investigated in this paper. Firstly, the GN-II and GN-III models of peridynamics (PD-GN model), which can consider spatial nonlocality and discontinuity of problems, are derived. Then, the characteristics of the PD-GN-II model are studied. To validate the correctness of the method and PD-GN-II model in this work, the results are compared with the results of other investigators and FEM results. In addition, the separate effects of non-locality of different fields on the thermo-mechanical response are discussed. Aiming at the thermal coupling problems of laminated structures subjected to thermal shock, the influence of non-local effect, the types of thermal-bonds (weaken or broken thermal-bonds), arrangement of material, and damage location are investigated. It is concluded that the new spatial nonlocal generalized thermoelastic model can handle discontinuous problems well, and material design has significant influence on the thermo-mechanical response and damage evolution of structures. The PD-GN model established in this work is not only a novel spatial non-local generalized thermoelastic model, but also provides a new way to solve the fracture problems in non-Fourier heat conduction.