基于有限元法的高分子材料套接胶接结构的研究与应用  

Research and Application of Polymer Materials Socket Bonding Structure Based on Finite Element Method

作　　者：买雪媛 秦刚[2] 李菲 陈琦 王帆帆 王国锋 崔景强 MAI Xue-yuan;QIN Gang;LI Fei;CHEN Qi;WANG Fan-fan;WANG Guo-feng;CUI Jing-qiang(Henan Key Laboratory of Medical Polymer Materials Technology and Application,Jiaozuo 453400,China;School of Materials Science and Engineering,Henan Polytechnic University,Jiaozuo 453400,China)

机构地区：[1]河南省医用高分子材料技术与应用重点实验室,河南新乡453400 [2]河南理工大学材料科学与工程学院,河南焦作454003

出　　处：《化学与粘合》2022年第3期184-188,共5页Chemistry and Adhesion

基　　金：国家生物医用材料生产应用示范平台项目(编号:TC190H3ZV/1)。

摘　　要：套接胶接结构广泛地应用于医疗器械的粘接结构中,为了研究及预测套接胶接结构的强度及失效行为,以医疗器械中常用的三通配件及聚氯乙烯(PVC)管粘接件为例,通过对套接胶接结构的有限元模型的建模,实现粘接接头的失效载荷预测以及进行失效过程中应力的变化及失效行为的研究。结果表明:通过使用TIE约束可将三通、胶层及PVC管体相连接,赋予材料性质后,可较为真实地模拟出测试件实际拉伸及断裂的过程。通过软件中SDEG数值的输出,分析出胶层开始失效的位置及粘接强度下降的原因;通过导出最终失效载荷的数值与位移的关系,分析出随位移的增长粘接强度的变化情况并通过试验验证了预测的准确性。The socket bonding structure is widely used in the bonding of medical equipment.The commonly used tee fittings and polyvinyl chlo-ride(PVC)pipe bonding parts in medical equipment is used to predict the failure loading and to study the stress changes and failure behavior of the bonding joint during the failure process through establishing the finite element model of socket bonding structure.The TIE restraints can be used to connect tee fitting,adhesive layers and PVC pipes.By endowing the properties of each material,the tensile fracture process of test piece can be more accurately simulated;The SDEG value in the software can be used to analyze the position where the adhesive layer begins to fail and the reason for the decrease in the adhesive strength;According to the relationship between the value of the final failure load and the displacement,the change of the bonding strength with the increase of the displacement is analyzed,finally,the accuracy of prediction is verified by experiments.

关 键 词：套接 胶接接头 有限元法 失效载荷 粘接强度 

分 类 号：TQ436.2[化学工程]