织物增强橡胶基复合材料本构模型及其应用  

Constitutive model and application of fabric reinforced rubber composites

作　　者：孙戬 王彤 陈云辉 林何 刘晖 成小乐[1,2] SUN Jian;WANG Tong;CHEN Yunhui;LIN He;LIU Hui;CHENG Xiaole(College of Mechanical and Electrical Engineering,Xi′an Polytechnic University,Xi′an,Shaanxi 710048,China;Xi′an Key Laboratory of Modern Intelligent Textile Equipment,Xi′an,Shaanxi 710048,China)

机构地区：[1]西安工程大学机电工程学院,陕西西安710048 [2]西安市现代智能纺织装备重点实验室,陕西西安710048

出　　处：《纺织学报》2025年第1期95-102,共8页Journal of Textile Research

基　　金：国家自然科学基金青年科学基金项目(51805402);陕西省自然科学基础研究计划项目(2022JM-362);西安市现代智能纺织装备重点实验室建设项目(2019220614SYS021CG043);湖北省数字化纺织装备重点实验室开放课题项目(KDTL2023002)。

摘　　要：为更准确地表征织物增强橡胶基复合材料在受力变形过程中的力学性能,针对二维编织物结构,基于连续介质力学将织物增强橡胶基复合材料应变能解耦为橡胶基体应变能、纤维拉伸应变能以及纤维之间相互作用引起的剪切应变能,结合橡胶、织物增强复合材料的单轴拉伸及镜框剪切实验数据拟合得到本构模型参数。通过对织物增强密封带压缩仿真结果与实验数据进行比较,验证了所建立的舱门密封有限元模型的有效性,随后将织物增强橡胶基复合材料超弹性本构模型应用于飞机舱门压缩过程的模拟分析。结果表明:超弹性本构模型能够用于表征织物增强复合材料的各向异性非线性材料行为;经向/纬向纤维与密封带轴向呈0°角铺设方式的密封性能优于45°角铺设,舱门的密封性能与门框的加载量成正比关系。Objective Considering that rubber seals are produced in the process of vulcanization molding,rubber penetration into the fabric will affect the deformation law of the fabric,which in turn affects the overall performance of the seals,the composite of fabric and rubber is regarded as an aramid fabric rubber reinforcement layer,and the constitutive model of fabric reinforced rubber composites is applied in order to more accurately characterize the mechanical properties of the fabric reinforced rubber composites in the process of deformation under force.Method The continuous medium mechanics theory was applied to decouple the strain energy of fabric-reinforced rubber composites,and the parameters of the constitutive model were obtained by combining with the experiment data fitting.For the established hatch sealing belt model,the conventional finite element analysis method,and the fabric reinforced rubber composite hyperelastic constitutive model were utilized to simulate the compression process of the hatch sealing belt,respectively.The simulation results of the compression of the hatch sealing belt were compared with the experimental data.Results According to the conventional finite element analysis method,the rubber matrix and fabric are considered separately.The Yeoh hyperelastic constitutive model was chosen to characterize the rubber material,and the aramid fabric reinforcement layer was simplified as LAMINA unit.The trend of the load-compression curve per unit length obtained from the simulation analysis of the hatch sealing belt model was basically the same as that obtained from the compression experiments of the aramid fabric reinforced seals,which verified the accuracy of the finite element model.Subsequently,the fabric reinforced rubber composite hyperelastic constitutive model was applied to the simulation analysis of the compression process of the aircraft hatch,and the effects of fabric fiber stretching and fiber cross-shear between warp and weft yarns on the sealing performance of the sealing belt were

关 键 词：机织物 橡胶 织物增强复合材料 橡胶密封件 本构模型 舱门密封带 密封性 有限元法 

分 类 号：TB332[一般工业技术—材料科学与工程]