特种阻尼硅橡胶的黏-超弹性本构模型  

Visco-hyperelastic Constitutive Model of Special Damping Silicone Rubber

作　　者：祝亮 陈薄 贾清健 古忠涛 ZHU Liang;CHEN Bo;JIA Qingjian;GU Zhongtao(Key Laboratory of Ministry of Education for Testing Technology for Manufacturing Process,School of Manufacturing Science andEngineering,Southwest University of Science and Technology,Mianyang 621010;Xi'an Institute of Space Radio Technology,Xi'an 710100)

机构地区：[1]西南科技大学制造科学与工程学院制造过程测试技术教育部重点实验室,绵阳621010 [2]西安空间无线电技术研究所,西安710100

出　　处：《宇航材料工艺》2025年第1期37-43,共7页Aerospace Materials & Technology

摘　　要：ZN-37特种阻尼硅橡胶是一种能够消耗并储存振动能量的黏弹性阻尼材料,广泛应用于航空航天等领域的高精密减振结构中。在对基于ZN-37特种阻尼硅橡胶的减振结构进行分析与设计时,充分表征材料的黏弹性力学行为以及精确描述其本构关系显得尤为重要。依据Zener修正模型,将ZN-37特种阻尼硅橡胶的黏-超弹性本构模型分解为超弹性本构模型与黏弹性本构模型并联耦合的系统。通过标准试样的准静态拉伸试验与应力松弛试验,获得了本构模型中的材料参数,并采用不同加载速率下的准静态拉伸试验验证了本构模型的可靠性。所建立的黏-超弹性本构模型能够较好地反映ZN-37特种阻尼硅橡胶在低加载速率下的力学特性。ZN-37 special damping silicone rubber is a viscous damping material capable of dissipating and storing vibrational energy,and is widely used in high-precsion vibration damping structures in aerospace and other fields.When analyzing and designing vibration reduction structures based on ZN-37 special damping silicone rubber,it is particularly crucial to fully characterize the viscoelastic mechanical behavior of the material and accurately describe its constitutive relationship.Based on the Zener modified model,the visco-hyperelastic constitutive model of ZN-37 special damping silicone rubber is decomposed into a parallel coupling system of the hyperelastic constitutive model and the viscoelastic constitutive model.Material parameters for the constitutive model are obtained through quasi-static tensile tests and stress relaxation tests on standard specimens.The reliability of the constitutive model is verified using quasi-static tensile tests conducted at different loading rates.The established viscohyperelastic constitutive model can effectively reflect the mechanical properties of ZN-37 special damping silicone rubber at low loading rates.

关 键 词：阻尼硅橡胶 黏-超弹性 本构模型 准静态拉伸 

分 类 号：TB3[一般工业技术—材料科学与工程]