打撃音法を用いた木材の弾性係数の非破壊検査測定精度の調査

URI http://harp.lib.hiroshima-u.ac.jp/it-hiroshima/metadata/7196
File
Title
打撃音法を用いた木材の弾性係数の非破壊検査測定精度の調査
Author
氏名 川上 和貴
ヨミ カワカミ カズキ
別名 Kawakami Kazuki
氏名 岩井 哲
ヨミ イワイ サトシ
別名 Iwai Satoshi
Subject
tapping-tone method
nondestructive test
elastic modulus
timber
NDC
501.32
Abstract

In this study, the estimation accuracy of the elastic modulus of timbers by a tapping-tone method used as a nondestructive test was examined against the real elastic modulus by the destructive test, changing section size, specimen length and kind of the timbers named Douglas fir, Chamaecyparis obtusa and Cryptomeria japonica. The elastic modulus were measured by two different types of tapping-tone method: the longitudinal vibration method and the transverse vibration method. The conclusions are as follows: it is found that the transverse vibration method predicts remarkably well the elastic modulus by the destructive test, regardless of the section size and the length of the specimen. On the other hand, the longitudinal vibration method to the small-size specimen (specimen with 480 mm length) shows, in certain cases, wrong estimation against the elastic modulus of the destructive test.

Journal Title
広島工業大学紀要. 研究編
Volume
42
Spage
199
Epage
206
Published Date
39479
Publisher
広島工業大学
ISSN
13469975
NCID
AA11599110
Language
jpn
NIIType
Departmental Bulletin Paper
Text Version
出版社版
Relation URL
Old URI
Set
it-hiroshima