How to effectively perform equibiaxial tension for rubber materials?

IF 4.5 2区化学 Q2 POLYMER SCIENCE Polymer Pub Date : 2025-03-08 DOI:10.1016/j.polymer.2025.128256

Qiang Zhang , Li Liu , Liqun Zhang , Fanzhu Li

{"title":"How to effectively perform equibiaxial tension for rubber materials?","authors":"Qiang Zhang , Li Liu , Liqun Zhang , Fanzhu Li","doi":"10.1016/j.polymer.2025.128256","DOIUrl":null,"url":null,"abstract":"<div><div>The utilization of a reasonable rubber hyperelastic constitutive model (HCM) is fundamental to obtain high-precision simulation results for the reliability analysis and structural optimization of rubber products under complex working conditions. Equibiaxial tension (ET) is of importance for the material parameters identification of HCMs. To date, there is no ISO standard for ET test of rubber, nor is there a comprehensive account of the design of different ET testing methods. In this work, we focus on the fundamental challenges of ET, including (i) how to select the appropriate shape and size of rubber samples (square, cruciform-Ⅰ, cruciform-II and circular)? (ii) How to determine the reasonable strain gauge zone through optical extensometers or digital image correlation technique? (iii) How to determine the load-bearing area in the solution of nominal stress? The rationality of the uniform equibiaxial strain calibration area and the precise stress calibration area of square and circular shape samples were verified through experimental data of different rubber materials. This work could provide a theoretical support for the selection and optimization of <span>ET</span> testing methods for rubber materials.</div></div>","PeriodicalId":405,"journal":{"name":"Polymer","volume":"324 ","pages":"Article 128256"},"PeriodicalIF":4.5000,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polymer","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0032386125002423","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}

引用次数: 0

Abstract

The utilization of a reasonable rubber hyperelastic constitutive model (HCM) is fundamental to obtain high-precision simulation results for the reliability analysis and structural optimization of rubber products under complex working conditions. Equibiaxial tension (ET) is of importance for the material parameters identification of HCMs. To date, there is no ISO standard for ET test of rubber, nor is there a comprehensive account of the design of different ET testing methods. In this work, we focus on the fundamental challenges of ET, including (i) how to select the appropriate shape and size of rubber samples (square, cruciform-Ⅰ, cruciform-II and circular)? (ii) How to determine the reasonable strain gauge zone through optical extensometers or digital image correlation technique? (iii) How to determine the load-bearing area in the solution of nominal stress? The rationality of the uniform equibiaxial strain calibration area and the precise stress calibration area of square and circular shape samples were verified through experimental data of different rubber materials. This work could provide a theoretical support for the selection and optimization of ET testing methods for rubber materials.

Abstract Image

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

如何有效地对橡胶材料进行等轴拉伸？

利用合理的橡胶超弹性本构模型是获得复杂工况下橡胶制品可靠性分析和结构优化高精度仿真结果的基础。等双轴张力（ET）对hcm材料参数的识别具有重要意义。迄今为止，橡胶的ET测试没有ISO标准，也没有对不同ET测试方法的设计进行全面的说明。在这项工作中，我们专注于ET的基本挑战，包括(i)如何选择合适的橡胶样品形状和尺寸（正方形，十字形-Ⅰ，十字形- ii和圆形）？（ii）如何通过光学延伸计或数字图像相关技术确定合理的应变片区域？（iii）在名义应力解中如何确定承载面积？通过不同橡胶材料的实验数据，验证了方形和圆形试样均匀等双轴应变校准区和精确应力校准区的合理性。本研究可为橡胶材料热变形测试方法的选择和优化提供理论支持。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Polymer 化学-高分子科学

CiteScore

7.90

自引率

8.70%

发文量

959

审稿时长

32 days

期刊介绍： Polymer is an interdisciplinary journal dedicated to publishing innovative and significant advances in Polymer Physics, Chemistry and Technology. We welcome submissions on polymer hybrids, nanocomposites, characterisation and self-assembly. Polymer also publishes work on the technological application of polymers in energy and optoelectronics. The main scope is covered but not limited to the following core areas: Polymer Materials Nanocomposites and hybrid nanomaterials Polymer blends, films, fibres, networks and porous materials Physical Characterization Characterisation, modelling and simulation* of molecular and materials properties in bulk, solution, and thin films Polymer Engineering Advanced multiscale processing methods Polymer Synthesis, Modification and Self-assembly Including designer polymer architectures, mechanisms and kinetics, and supramolecular polymerization Technological Applications Polymers for energy generation and storage Polymer membranes for separation technology Polymers for opto- and microelectronics.