Residual Bending Strengths of CFRP Laminates after Impact
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概要
- 論文の詳細を見る
In the present work, static and fatigue residual bending strengths of carbon fiber reinforced plastic (CFRP) laminates having impact damage are evaluated with four-and three-point bending tests. A steel ball was launched from an air gun and impacted upon CFRP laminates to generate impact damage. The delamination growth during fatigue tests and the fracture surface are observed with a scanning acoustic microscope and scanning electron microscope, respectively. The residual strengths determined by the four-point bending test are reduced, particularly when the impacted side is compressed. The degree of reduction is influenced by the propagation of surface cracks near the impact impression. The residual strengths determined by the three-point bending test are almost the same whether the impacted side is the top or the bottom. It is determined that the degree of reduction of strength is governed by the slide of the transverse cracks due to the shear force.
- 一般社団法人日本機械学会の論文
- 1995-07-15
著者
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Adachi Tadaharu
Tokyo Institute Of Technology Department Of Mechanical Engineering And Science
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Matsumoto Hiroyuki
Tokyo Institute Of Technology
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Adachi T
Tokyo Inst. Of Technol. Tokyo Jpn
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Matsumoto H
Tokyo Institute Of Technology Department Of Mechanical Engineering And Science
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Okazaki Mitsuhiro
Nikon Corp., Ltd.
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Ujihashi Sadayuki
Tokyo Institute of Technology, Department of Mechanical Engineering and Science
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Okazaki Mitsuhiro
Nikon Corp. Ltd.
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Ujihashi Sadayuki
Tokyo Institute Of Technology Department Of Mechanical Engineering And Science
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Ujihashi Sadayuki
Tokyo Institute Of Technology
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