Investigation on the indentation strain rate sensitivity of aged PMMA

被引：8

作者：

Lv, Lin ^{[1
]}

Lin, Hui ^{[1
,2
]}

Jin, Tao ^{[3
,4
]}

机构：

[1] Hangzhou Vocat & Tech Coll, Hangzhou 310018, Zhejiang, Peoples R China

[2] Zhejiang Univ Technol, Minist Educ & Zhejiang Prov, Key Lab E&M, Hangzhou 310014, Peoples R China

[3] Taiyuan Univ Technol, Inst Appl Mech, Taiyuan 030024, Peoples R China

[4] Xi An Jiao Tong Univ, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China

来源：

VACUUM | 2021年 / 185卷

基金：

中国国家自然科学基金;

关键词：

Aged PMMA; Indentation creep; Strain rate sensitivity; Time-dependent deformation;

D O I：

10.1016/j.vacuum.2020.110026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanoindentation was used to investigate the strain rate sensitivity and indentation creep behaviors of aged Polymethyl methacrylate (PMMA). Results show that the change law of strain rate sensitive index is found consistent with R-hev + R-hv vs. aging time. This phenomenon illustrates the strain rate sensitivity of continuum solids results from their inherent time-dependent deformation properties.

引用

页数：5

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