聚氨酯弹性体夹芯板的屈曲性能研究  

Study of buckling performance of polyurethane elastomer sandwich panels

作　　者：吴晔[1,2] 陈莉[1,2] 余丽[1,2] 陈晓杰[3] 

机构地区：[1]南昌工程学院江西省水利土木工程基础设施安全重点实验室,江西南昌330099 [2]南昌工程学院江西省水利土木特种加固与安全监控工程研究中心,江西南昌330099 [3]哈尔滨工程大学航天与建筑工程学院,黑龙江哈尔滨150001

出　　处：《南昌工程学院学报》2017年第4期10-12,17,共4页Journal of Nanchang Institute of Technology

基　　金：国家自然科学青年基金资助项目(51409056)

摘　　要：以聚氨酯弹性体为芯材、钢板为面板制备了聚氨酯弹性体夹芯板。通过试验研究了聚氨酯弹性体夹芯板的屈曲行为,观察了聚氨酯弹性体夹芯板的破坏模式,得到了临界屈曲载荷,同时建立了聚氨酯弹性体夹芯板的屈曲数值模型。研究结果表明,聚氨酯弹性体夹芯板的屈曲破坏形式为整体屈曲;屈曲载荷—位移曲线可分为两个阶段,最大值为临界屈曲载荷;数值计算结果与实验结果一致,验证了模型的有效性。The polyurethane elastomer sandwich panels were fabricated using polyurethane elastomer as the core material and steel materials as the shell. The buckling behavior of the polyurethane elastomer sandwich panels was studied by test.The failure mode of the polyurethane elastomer sandwich panels was observed and the critical buckling load was acquired.The buckling numerical model of the polyurethane elastomer sandwich panels was built. The results show that the failure mode of the polyurethane elastomer sandwich panels was overall buckling; that the load-displacement curve of buckling can be divided into two stages,and the maximum was the critical buckling load; and that the results of numerical calculation were consistent with the test,which proves the validity of the model.

关 键 词：聚氨酯弹性体夹芯板 屈曲试验 失效模式 临界屈曲载荷 数值模型 

分 类 号：O347[理学—固体力学]