摘要
通过非线性有限元方法对橡胶-钢球支座的橡胶层与钢球粘结界面上及橡胶中间层在扭转载荷作用下存在中心裂纹和环形边缘裂纹的情况进行了数值模拟,给出撕裂能与裂纹尺寸、载荷和橡胶层厚度的关系曲线。结果表明,撕裂能随载荷的增加而增加,随橡胶层厚度的增加而减小。对于界面中心裂纹和橡胶层环形边缘裂纹,撕裂能都随着裂纹深度的增加先增加后减小;对于界面环形边缘裂纹和橡胶层中间钱币形裂纹,撕裂能随裂纹深度的增加而增加。
Nonlinear finite element method was adopted to simulate numerically a rubber-steel sphere bush subjected to a tosion with a circumferential central spherical crack or a circumferential edge spherical crack in the bonded interface and the middle rubber layer.The relation curves between tearing energy and crack depth were plotted,furthermore,the relation curves between tearing energy,load and thickness of the rubber layer.The results indicate that tearing energy increases as load increases but decreases as thickness of the rubber layer increases.And for interface central crack and circumferential edge crack in the middle rubber layer,tearing energy increases and then decreases as crack depth increases,or interface circumferential edge crack and penny shaped central crack in the rubber layer,tearing energy increases as crack depth increases.
出处
《应用力学学报》
CAS
CSCD
北大核心
2009年第1期176-180,共5页
Chinese Journal of Applied Mechanics
关键词
橡胶-钢球支座
粘结界面
撕裂能
非线性有限元
rubber-steel sphere bush,bonded interface,tearing energy,nonlinear finite element method
