著者
臺丸谷 政志 小林 秀敏
出版者
日本材料学会
雑誌
材料 (ISSN:05145163)
巻号頁・発行日
vol.60, no.7, pp.668-673, 2011 (Released:2011-07-20)
被引用数
1 or 0

The Japanese sword is interesting not only from the viewpoint of traditional crafts of arts, but also from the aspect of modern science and technology because the way of making and its functionality as a weapon are really consistent with modern science. The present study is concerned with the joint between tohshin (blade) and tsuka (hilt) of the sword. Only one mekugi-take (retaining peg made of bamboo) with about 5mm in diameter holds Nakago (tang) in the hilt. However the 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, using a Japanese sword model, it is examined theoretically and experimentally why a mekugi used in Japanese swords might not be broken from the viewpoint of impact engineering. Consequently, it is presumed that such a strong force as breaking mekugi-take does not act on it, because of the location of mekugi-ana (a hole for mekugi) in the tang, which has been made by following the traditional code of swordsmiths.

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外部データベース (DOI)

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" 日本刀の鍛錬と焼入れのシミュレーション" (PDF) https://t.co/0c8w3MFBZ3 "日本刀の刀身モデルの衝撃応答" (PDF) https://t.co/9DNkNWHLZJ 「ガリレオX」を観ながらメモ(工学的な面には興味あり)。
日本刀の刀身モデルの衝撃応答 https://t.co/dKVGqlWGt6
臺丸谷政志&小林秀敏「日本刀の刀身モデルの衝撃応答」https://t.co/bmFsLqTc01 について、書き忘れ追記。 →「模型を作って衝撃実験。→目釘穴の位置は、負担が少ない。」といった結論。
■打刀の振動と目釘穴について、材料力学の論文。臺丸谷政志&小林秀敏。2011年。 「日本刀の刀身モデルの衝撃応答」 https://t.co/bmFsLqTc01 →僕の直感に近い。節を二つ押さえたら、振動は変になっちゃうよね?→理論わからぬが… 二本目釘の欠点?

収集済み URL リスト

https://www.jstage.jst.go.jp/article/jsms/60/7/60_7_668/_pdf (29)