Dielectric elastomers (DEs) have extensive applications. However, their applications are commonly limited by fatigue damage since DEs are often subjected to cyclic electromechanical load. In this work, the fatigue life of dielectric elastomers under various electromechanical loads is investigated with a theory developed through configurational mechanics. The simulation results are also interpreted from the monomer level. Under charge-induced actuation, the fatigue damage of dielectric elastomers is dictated by the polarization of dipoles. Moreover, the polymerization degree and the portion of free chains exert a significant effect on the fatigue life of dielectric elastomers. It is concluded that a longer fatigue life is expected for dielectric elastomers under charge-induced actuation than mechanical deformation.

介电弹性体（DEs）具有广泛的应用。但是，它们的应用通常受到疲劳损伤的限制，因为DE经常承受周期性的机电负载。在这项工作中，通过构造力学发展的理论研究了介电弹性体在各种机电负载下的疲劳寿命。还从单体水平解释了模拟结果。在电荷诱导的驱动下，介电弹性体的疲劳损伤取决于偶极子的极化。而且，聚合度和自由链的部分对介电弹性体的疲劳寿命具有显着影响。结论是，在电荷诱导的驱动下，介电弹性体的疲劳寿命要比机械变形更长。