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積層構成の異なる箱形断面CFRP梁における曲げ挙動の画像解析

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Title: 積層構成の異なる箱形断面CFRP梁における曲げ挙動の画像解析
Other Titles: Image analysis on flexural behabious of CFRP box beams with different laminate structures
Authors: 松本, 高志1 Browse this author →KAKEN DB
岡松, 広忠2 Browse this author
櫻庭, 浩樹3 Browse this author
Authors(alt): Matsumoto, Takashi1
Okamatsu, Hirotada2
Sakuraba, Hiroki3
Keywords: CFRP
箱形断面梁
曲げ
積層構成
画像解析
box beam
flexure
laminate structure
image analysis
Issue Date: 2012
Publisher: 土木学会
Journal Title: 土木学会論文集A2(応用力学)
Volume: 68
Issue: 2
Start Page: I_691
End Page: I_702
Abstract: This paper presents an image analysis on the flexural behaviors of CFRP box beams with two different CFRP laminate structures: quasi isotropic (QI) and cross ply (CP) laminate. Image analysis is conducted in order to measure the deformation field around the center span of CFRP box beams, and strains, principal strains, principal stresses, and Tsai-Wu index are calculated consequently. QI and CP showed a different flexural response due to their laminate structures, but both showed a final brittle failure in upper flange and web. Strains, principal strains, and principal stresses clearly show characteristic distributions around the center span, and some of them indicate local concentrations near loading points. Tsai-Wu index explains fracture origin location possibly for QI, but it does not for CP.
Type: article
URI: http://hdl.handle.net/2115/53723
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 松本 高志

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