Evaluation of New Crack Suppression Method for Foam Core Sandwich Panel Via Fracture Toughness Tests and Analyses Under Mode-I Type Loading

被引：15
作者：
Hirose, Yasuo [1 ]
Matsuda, Hirokazu [2 ]
Matsubara, Go [2 ]
Inamura, Fumihide [2 ]
Hojo, Masaki [3 ]
机构：
[1] Kawasaki Heavy Ind Co Ltd, Commercial Aircraft Project Engn Div, Aerospace Co, Kakamigahara, Gifu 5048710, Japan
[2] Kawasaki Heavy Ind Co Ltd, Tech Inst, Strength Res Dept, Akashi, Hyogo 6738666, Japan
[3] Kyoto Univ, Dept Mech Engn & Sci, Sakyo Ku, Kyoto 6068501, Japan
来源：
JOURNAL OF SANDWICH STRUCTURES & MATERIALS | 2009年 / 11卷 / 06期
关键词：
foam core; sandwich panel; interfacial crack; crack suppression; mode I type loading; PEEL-STOPPER;
D O I：
10.1177/1099636208104522
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A new crack arrester was proposed, in which a different material with higher stiffness is installed on the crack propagation path. The effect of this crack arrester was experimentally evaluated for interfacial crack propagation between a carbon fiber reinforced plastic surface skin and a foam core. The experimental results indicated that the crack arrester increased the critical load of the crack growth, and approximately five times larger apparent fracture toughness was obtained near the leading edge of the arrester by considering the energy release rate. It was also confirmed that the fabrication of the crack arrester had no detrimental effect on the intrinsic properties of the sandwich panel structures.
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页码：451 / 470
页数：20
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