Development of a micro-indentation device for measuring the mechanical properties of soft materials

被引：0
|
作者：
Xiang He [1 ,2 ]
Pengfei Wang [1 ,2 ]
Guoyou Huang [1 ,3 ]
Shaobao Liu [1 ,2 ]
Minglong Xu [2 ]
Feng Xu [1 ,3 ]
TianJian Lu [1 ,2 ]
机构：
[1] Bioinspired Engineering and Biomechanics Center, Xi'an Jiaotong University
[2] State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace,Xi'an Jiaotong University
[3] Key Laboratory of Biomedical Information Engineering of Education Ministry, Xi'an Jiaotong University
来源：
Theoretical & Applied Mechanics Letters | 2013年 / 3卷 / 05期
基金：
中国国家自然科学基金; 中央高校基本科研业务费专项资金资助;
关键词：
micro-indentation; soft materials; relaxation curve; mechanical properties;
D O I：
暂无
中图分类号：
TB302 [工程材料试验];
学科分类号：
0805 ; 080502 ;
摘要：
Indentation is a simple and nondestructive method to measure the mechanical properties of soft materials,such as hydrogels,elastomers and soft tissues.In this work,we have developed a micro-indentation system with high-precision to measure the mechanical properties of soft materials,where the shear modulus and Poisson’s ratio of the materials can be obtained by analyzing the load–relaxation curve.We have validated the accuracy and stability of the system by comparing the measured mechanical properties of a polyethylene glycol sample with that obtained from a commercial instrument.The mechanical properties of another typical polydimethylsiloxane sample submerged in heptane are measured by using conical and spherical indenters,respectively.The measured values of shear modulus and Poisson’s ratio are within a reasonable range.
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页码：1 / 4
页数：4
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