金属材料局部腐蚀损伤过程的近场动力学模拟：进展与挑战

夏大海, 邓成满, 陈子光, 李天书, 胡文彬

Modeling Localized Corrosion Propagation of Metallic Materials by Peridynamics: Progresses and Challenges

XIA Dahai, DENG Chengman, CHEN Ziguang, LI Tianshu, HU Wenbin

图1 经典连续力学中的相互作用[62]与近场动力学(PD)中的相互作用[48]

Fig.1 Classical continuum mechanics interactions (a)[62] and peridynamics (PD) interactions (b)[48] (B—local interaction body; δ—horizon size; Hx —horizon- x in peridynamics; x, x ?—material points; y, y ?—locations of x and x ? with deformed state, respectively; u, u ?—displacements of x and x ?, respectively; f —constitutive force function; x1, x2, x3—coordinations)