2205 バット材としてのアオダモの強度特性(OS15 異方性構造の力学と設計II)

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  • 2205 Mechanical characteristics of aodamo(Fraxmus lanuginosd) as baseball bats

説明

Aodamo (Fraxinus lanuginosa) is usually used for baseball bats. The objective of this study is to prove the variation in mechanical properties of aodamo grows in Hokkaido. Torsional test, static bending test, compressive test (parallel to grain), partial compressive test (perpendicular to grain) and shearing test were performed to specimens of aodamo cut at Nikappu, Shizunai and Urakawa which were located in Hidaka-shicho, and test results of 3 regions were compared. As a result, specific gravity and most other properties for Nikappu were a little greater than those for the others. However, it was hard to arrive at the definite conclusion because only 2-4 logs per a region were available in this study.

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