TY - EJOU AU - Song, Runze AU - Han, Fei AU - Mei, Yong AU - Sun, Yunhou AU - Zhang, Ao TI - A Hybrid Local/Nonlocal Continuum Mechanics Modeling of Damage and Fracture in Concrete Structure at High Temperatures T2 - Computer Modeling in Engineering \& Sciences PY - 2022 VL - 133 IS - 2 SN - 1526-1506 AB - This paper proposes a hybrid peridynamic and classical continuum mechanical model for the high-temperature damage and fracture analysis of concrete structures. In this model, we introduce the thermal expansion into peridynamics and then couple it with the thermoelasticity based on the Morphing method. In addition, a thermomechanical constitutive model of peridynamic bond is presented inspired by the classic Mazars model for the quasi-brittle damage evolution of concrete structures under high-temperature conditions. The validity and effectiveness of the proposed model are verified through two-dimensional numerical examples, in which the influence of temperature on the damage behavior of concrete structures is investigated. Furthermore, the thermal effects on the fracture path of concrete structures are analyzed by numerical results. KW - Peridynamics; continuum mechanics; damage and fracture; concrete structure; thermoelasticity DO - 10.32604/cmes.2022.021127