| Title: |
Size-Dependent Adhesion Strength of a Single Viscoelastic Fiber |
| First author: |
Chen Shaohua; Xu Guang; Soh A |
| Abstract: |
Nano-fibrillar adhesives can adhere strongly to surfaces as a gecko does. The size of each fiber has significant effects on the adhesion enhancement, especially on rough surfaces. In the present study, we report the size effects on the normal and shear strength of adhesion for a single viscoelastic fiber. It is found that there exists a limited region of the critical sizes under which the interfacial normal or tangential tractions uniformly attain the theoretical adhesion strength. The region for a viscoelastic fiber under tension with similar material constants to a gecko's spatula is 135-255 nm and that under torque is 26.5-52 nm. This finding is significant for the development of artificial biomimetic attachment systems.
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| Contact the author: |
Chen Shaohua |
| Page number: |
375-379 |
| Issue: |
2 |
| Subject: |
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| Authors units: |
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| PubYear: |
2010 |
| Volume: |
37 |
| Unit code: |
115111 |
| Publication name: |
TRIBOLOGY LETTERS |
| The full text link: |
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| Full papers: |
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| Departmens of first author: |
LNM |
| Paper source: |
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| Paper type: |
AK |
| Participation of the author: |
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| ISSN: |
1023-8883 |
