固体结构损伤破坏统一相场理论、算法和应用1)
吴建营

ON THE UNIFIED PHASE-FIELD THEORY FOR DAMAGE AND FAILURE IN SOLIDS AND STRUCTURES: THEORETICAL AND NUMERICAL ASPECTS1)
Wu Jianying
图5 参数$a_{1} > 0$对能量退化函数$\omega (d)$的影响[58]
Fig.5 Effects of the parameter $a_{1}$ on the energetic degradation function[58]