Propagation of Fatigue Cracks in Friction of Brittle Hydrogels
In order to understand fatigue crack propagation behavior in the friction of brittle hydrogels, we conducted reciprocating friction experiments between a hemi-cylindrical indenter and an agarose hydrogel block. We found that the fatigue life is greatly affected by the applied normal load as well as...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-06-01
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| Series: | Gels |
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| Online Access: | http://www.mdpi.com/2310-2861/4/2/53 |
| _version_ | 1828262985528770560 |
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| author | Tetsuo Yamaguchi Ryuichiro Sato Yoshinori Sawae |
| author_facet | Tetsuo Yamaguchi Ryuichiro Sato Yoshinori Sawae |
| author_sort | Tetsuo Yamaguchi |
| collection | DOAJ |
| description | In order to understand fatigue crack propagation behavior in the friction of brittle hydrogels, we conducted reciprocating friction experiments between a hemi-cylindrical indenter and an agarose hydrogel block. We found that the fatigue life is greatly affected by the applied normal load as well as adhesion strength at the bottom of the gel–substrate interface. On the basis of in situ visualizations of the contact areas and observations of the fracture surfaces after the friction experiments, we suggest that the mechanical condition altered by the delamination of the hydrogel from the bottom substrate plays an essential role in determining the fatigue life of the hydrogel. |
| first_indexed | 2024-04-13T04:06:08Z |
| format | Article |
| id | doaj.art-f98ce09ef53940bf93f3373a35888965 |
| institution | Directory Open Access Journal |
| issn | 2310-2861 |
| language | English |
| last_indexed | 2024-04-13T04:06:08Z |
| publishDate | 2018-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Gels |
| spelling | doaj.art-f98ce09ef53940bf93f3373a358889652022-12-22T03:03:20ZengMDPI AGGels2310-28612018-06-01425310.3390/gels4020053gels4020053Propagation of Fatigue Cracks in Friction of Brittle HydrogelsTetsuo Yamaguchi0Ryuichiro Sato1Yoshinori Sawae2Department of Mechanical Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, JapanDepartment of Mechanical Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, JapanDepartment of Mechanical Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, JapanIn order to understand fatigue crack propagation behavior in the friction of brittle hydrogels, we conducted reciprocating friction experiments between a hemi-cylindrical indenter and an agarose hydrogel block. We found that the fatigue life is greatly affected by the applied normal load as well as adhesion strength at the bottom of the gel–substrate interface. On the basis of in situ visualizations of the contact areas and observations of the fracture surfaces after the friction experiments, we suggest that the mechanical condition altered by the delamination of the hydrogel from the bottom substrate plays an essential role in determining the fatigue life of the hydrogel.http://www.mdpi.com/2310-2861/4/2/53hydrogelfrictionfatiguewearfracturecrackadhesiondelamination |
| spellingShingle | Tetsuo Yamaguchi Ryuichiro Sato Yoshinori Sawae Propagation of Fatigue Cracks in Friction of Brittle Hydrogels Gels hydrogel friction fatigue wear fracture crack adhesion delamination |
| title | Propagation of Fatigue Cracks in Friction of Brittle Hydrogels |
| title_full | Propagation of Fatigue Cracks in Friction of Brittle Hydrogels |
| title_fullStr | Propagation of Fatigue Cracks in Friction of Brittle Hydrogels |
| title_full_unstemmed | Propagation of Fatigue Cracks in Friction of Brittle Hydrogels |
| title_short | Propagation of Fatigue Cracks in Friction of Brittle Hydrogels |
| title_sort | propagation of fatigue cracks in friction of brittle hydrogels |
| topic | hydrogel friction fatigue wear fracture crack adhesion delamination |
| url | http://www.mdpi.com/2310-2861/4/2/53 |
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