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On the tension strength of carbon/epoxy composites in the presence of deep scratches
被引:9
作者:
Petersen, Derek R.
[1
]
El-Hajjar, Rani F.
[1
]
Kabor, Bashar A.
[2
]
机构:
[1] Univ Wisconsin, Coll Engn & Appl Sci, Dept Civil Engn & Mech, Milwaukee, WI 53217 USA
[2] ACE Tech, Aircraft Struct, Snohomish, WA 98296 USA
关键词:
Composites;
Fracture mechanics;
Mixed mode fracture;
Aerospace vehicles;
Gouges;
COHESIVE-ZONE MODELS;
FRACTURE-TOUGHNESS;
FREE-EDGE;
LAMINATED COMPOSITES;
MATRIX COMPOSITES;
FREE-VIBRATION;
P-ELEMENT;
FIBER;
RESISTANCE;
BEHAVIOR;
D O I:
10.1016/j.engfracmech.2012.04.013
中图分类号:
O3 [力学];
学科分类号:
08 ;
0801 ;
摘要:
Fiber reinforced plastic composites are currently used in structures operating in a variety of environments where various forms of damage may occur. One form of possible damage in composite structures can be in the form of deep scratches causing a discontinuity in the load bearing plies. These scratches may occur accidentally by abrasion of the composite structure on a sharp object during normal operating conditions. Scenarios for these possibilities are discussed in the aerospace environment. Experimental and numerical studies performed show altered failure modes and J-Integral mode mixity affecting the tension behavior of the carbon/epoxy composites examined. (C) 2012 Elsevier Ltd. All rights reserved.
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页码:30 / 40
页数:11
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