| Project/Area Number |
12650102
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Ritsumeikan University |
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Principal Investigator |
YAMAMOTO Noritaka Ritsumeikan Univ., Fac. Science and Engineering, Professor, 理工学部, 助教授 (40210546)
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| Project Period (FY) |
2000 – 2001
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| Project Status |
Completed (Fiscal Year 2001)
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| Budget Amount *help |
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2001: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 2000: ¥1,900,000 (Direct Cost: ¥1,900,000)
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| Keywords | Biomechanics / Biological tissue / Mechanical adaptation / Microstructure / Tendon / Collagen fascicle / Mechanical properties / コラーゲン繊維 |
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| Research Abstract |
We studied the relationships between the microstructure and mechanical properties of mouse tail tendon and its collagen fascicles, using the new method by which tensile tests were performed observing the microstructure of them with a differential interference microscope.
1. The fascicles were cyclically stressed to 50, 75, and 90 % of their tensile strength and faded at 128, 6, and 3 times. Microscopically, the partial rupture of some fibers was observed before the complete failure of the fascicles.
2. The maximum load of a tail tendon was larger than the sum of that of its fascicles. A tail tendon was composed of several fascicles enveloped by a sheath. The difference in the maximum load might be attributable to mechanical interaction between fibers as well as between fibers and ground substance induced by binding fascicles with the sheath.
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