期刊
JOURNAL OF COMPOSITE MATERIALS
卷 43, 期 22, 页码 2521-2531出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0021998309345347
关键词
silkworm silk fiber; mechanical properties; Weibull analysis; surface analysis
资金
- The Hong Kong Polytechnic University [PolyU 5205/06E, 5198/07E]
Mechanical properties of Bombyx mori, twisted B. mori, and Tussah silk fibers were investigated. Their ultimate tensile strength, elongation at break, and Young's modulus were examined by performing a uniaxial tensile test on a single fiber. Scanning electron microscopy was used to observe the morphology of two different types of silk fiber, and to measure their apparent diameters from which the cross-sectional area of the silk fiber for stress-strain analysis can be determined. Based on experimental results obtained, it was found that Tussah silk fiber has a relatively high extensibility as compared to B. mori silk fiber and other natural fibers. Weibull analysis was also used to quantify tensile strength reproducibility of the silk fiber. Both single and twisted B. mori silk fibers have a better reproducibility of tensile properties than Tussah silk fiber.
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