Impact behaviour of the Japanese sword

• Autorzy: Daimaruya M. , Kobayashi H.
• Języki publikacji: EN

Abstrakty

EN

The Japanese sword is a weapon peculiar to Japan. The present study is concerned with the joint between tohshin (blade) and tsuka (hilt) of the Japanese sword. Only one mekugitake (retaining peg made of bamboo) with about 5mm in diameter holds the tang in the hilt. However a slender mekugi might not be broken, even in the case of violent sword-fighting. This fact has been historically demonstrated in many battles by Japanese swords. In this study it is examined theoretically and experimentally from the viewpoint of impact engineering why a mekugi used in Tachi and Katana may not be broken. As a result, it is found that such a strong force as breaking a mekugi-take does not act on it, because of the location of mekugiana (a hole for mekugi) in the tang, which has been made in the Japanese sword by following the traditional code of sword-smiths.

Słowa kluczowe

EN

impact force; impact response; Japanese sword; Tachi; mekugi-ana; joint of blade and hilt

PL

siła uderzenia; miecz japoński; Tachi; mekugi-ana; połączenie ostrze-rękojeść

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Engineering Transactions
• Rocznik: 2012
• Tom: Vol. 60, iss. 2
• Strony: 101--112
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Daimaruya M.

autor

Kobayashi H.

• Muroran Institute of Technology 27-1 Mizumoto, Hokkaido, 050-8585, Japan,

Bibliografia

• 1. Sato K., The Japanese Sword – A Comprehensive guide, Kodansha International, Tokyo, 1983.
• 2. Kapp L., Kapp H., Yoshihara Y., The Craft of the Japanese Sword, Kodansha International, Tokyo, 1987.
• 3. Suzuki T., Traditional Technology of Making Japanese Swords [in Japanese], Rikougakusya, 1994.
• 4. Dodd B., The Making of Old Japanese Swords, Journal of Mechanical Working Technology, 2, 75–84, 1978.
• 5. The Society for Preservation of Japanese Art Swords; http://www.touken.or.jp/
• 6. Fujiwara H., Hanabusa T., Tanaka K., Scientific research of Japanese sword – its curvature (sori) and residual stresses, Proc. 3rd Inter. Conf. Residual Stresses, 2, 1537–1542, 1991.
• 7. Inoue T., Uehara T., Nakano Y., Metallo-Thermo-Mechanical Simulation of Quenching and Tempering of Japanese Sword, Proc. of 5th Inter. Symposium on Plasticity and its Current Applications, July 17–21, 1995, Sakai-Osaka, pp. 697–700.
• 8. Inoue T., The Japanese Sword – Materials, Forging and Simulation of Quenching [in Japanese], Materia Japan, 35, 2, 174–178, 1996.
• 9. Daimaruya M., Impact Response of the Japanese Sword Model [in Japanese], Inspection Engineering, 11, 5, 12–16, 2006.
• 10. Daimaruya M., Kobayashi H., Fujiki H., Impact Response of a Model of the Japanese Sword with Sori [in Japanese], Proc. of 2006 Annual Meeting of JSME/MMD, pp. 149–150, 2006.
• 11. Daimaruya M., Kobayashi H. Bustami S., Chiba M., Impact Tensile Strength and Fracture of Plaster Material, J. Japan Soc. Str. Fracture Mats., 30, 1, 1–24, 1996.