Based on silicone gel composite elastomer,finite element numerical calculation model was constructed to calculate the interfacial bonding strength.This model included cohesive force and mechanical model of hyper elastic materials with Mullins effect,which respectively described the energy loss at the interface of composite elastomers during peeling and the energy loss during deformation of surrounding materials.Abaqus could be used to directly implement examples,and the relevant calculation parameters required for the examples could be obtained through corresponding material mechanics characterization.Due to the similarity in the trend,amplitude,and interval of the data curve with the experimental results,it proved that the constructed finite element numerical model had a certain degree of accuracy.This study provided a new approach for predicting material properties through finite element numerical calculations,which replaced the complex experimental characterization methods.
关键词
复合弹性体/界面粘接强度/有限元数值模型/内聚力/Mullins效应
Key words
composite elastomer/interfacial bonding strength/finite element numerical calculation/cohesive force/Mullins effect