Investigation on the Influences of Hygrothermal Aging on the Indentation Size Effects and Micro-Indentation Measurements of PMMA. Part I: Experimental Results
The polymethyl methacrylate (PMMA) subjected to hygrothermal aging was applied to nanoindentation tests under different indentation strain rates. The influences of hygrothermal aging on the indentation behaviors of PMMA are discussed. Results show that the indentation elastic modulus and hardness de...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-08-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/10/16/5454 |
| _version_ | 1797559829708931072 |
|---|---|
| author | Hui Lin Lin Lv Tao Jin |
| author_facet | Hui Lin Lin Lv Tao Jin |
| author_sort | Hui Lin |
| collection | DOAJ |
| description | The polymethyl methacrylate (PMMA) subjected to hygrothermal aging was applied to nanoindentation tests under different indentation strain rates. The influences of hygrothermal aging on the indentation behaviors of PMMA are discussed. Results show that the indentation elastic modulus and hardness decrease with increasing aging time. Furthermore, the indentation size effects (ISE) can be observed in aged PMMA specimens as they are sensitive to aging time as well as to the indentation strain rate. The quantitative analysis of ISE is proposed on the basis of shear transformation-mediated plasticity and was presented in our companion paper. |
| first_indexed | 2024-03-10T17:50:51Z |
| format | Article |
| id | doaj.art-63a4632f9d8141a6bdc57d2751c42943 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T17:50:51Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-63a4632f9d8141a6bdc57d2751c429432023-11-20T09:22:10ZengMDPI AGApplied Sciences2076-34172020-08-011016545410.3390/app10165454Investigation on the Influences of Hygrothermal Aging on the Indentation Size Effects and Micro-Indentation Measurements of PMMA. Part I: Experimental ResultsHui Lin0Lin Lv1Tao Jin2College of automobile, Hangzhou Vocational & Technical College, Hangzhou 310018, ChinaCollege of automobile, Hangzhou Vocational & Technical College, Hangzhou 310018, ChinaInstitute of Applied Mechanics, Taiyuan University of Technology, Taiyuan 030024, ChinaThe polymethyl methacrylate (PMMA) subjected to hygrothermal aging was applied to nanoindentation tests under different indentation strain rates. The influences of hygrothermal aging on the indentation behaviors of PMMA are discussed. Results show that the indentation elastic modulus and hardness decrease with increasing aging time. Furthermore, the indentation size effects (ISE) can be observed in aged PMMA specimens as they are sensitive to aging time as well as to the indentation strain rate. The quantitative analysis of ISE is proposed on the basis of shear transformation-mediated plasticity and was presented in our companion paper.https://www.mdpi.com/2076-3417/10/16/5454pressure-sensitive polymerindentation size effectsstrength differential (SD) effectsshear transformation-mediated plasticityhygrothermal aging |
| spellingShingle | Hui Lin Lin Lv Tao Jin Investigation on the Influences of Hygrothermal Aging on the Indentation Size Effects and Micro-Indentation Measurements of PMMA. Part I: Experimental Results Applied Sciences pressure-sensitive polymer indentation size effects strength differential (SD) effects shear transformation-mediated plasticity hygrothermal aging |
| title | Investigation on the Influences of Hygrothermal Aging on the Indentation Size Effects and Micro-Indentation Measurements of PMMA. Part I: Experimental Results |
| title_full | Investigation on the Influences of Hygrothermal Aging on the Indentation Size Effects and Micro-Indentation Measurements of PMMA. Part I: Experimental Results |
| title_fullStr | Investigation on the Influences of Hygrothermal Aging on the Indentation Size Effects and Micro-Indentation Measurements of PMMA. Part I: Experimental Results |
| title_full_unstemmed | Investigation on the Influences of Hygrothermal Aging on the Indentation Size Effects and Micro-Indentation Measurements of PMMA. Part I: Experimental Results |
| title_short | Investigation on the Influences of Hygrothermal Aging on the Indentation Size Effects and Micro-Indentation Measurements of PMMA. Part I: Experimental Results |
| title_sort | investigation on the influences of hygrothermal aging on the indentation size effects and micro indentation measurements of pmma part i experimental results |
| topic | pressure-sensitive polymer indentation size effects strength differential (SD) effects shear transformation-mediated plasticity hygrothermal aging |
| url | https://www.mdpi.com/2076-3417/10/16/5454 |
| work_keys_str_mv | AT huilin investigationontheinfluencesofhygrothermalagingontheindentationsizeeffectsandmicroindentationmeasurementsofpmmapartiexperimentalresults AT linlv investigationontheinfluencesofhygrothermalagingontheindentationsizeeffectsandmicroindentationmeasurementsofpmmapartiexperimentalresults AT taojin investigationontheinfluencesofhygrothermalagingontheindentationsizeeffectsandmicroindentationmeasurementsofpmmapartiexperimentalresults |