A MODEL FOR THE REDUCTION IN COMPRESSION STRENGTH OF CONTINUOUS FIBER COMPOSITES AFTER IMPACT DAMAGE

被引：48

作者：

GUILD, FJ ^{[1
]}

HOGG, PJ ^{[1
]}

PRICHARD, JC ^{[1
]}

机构：

[1] QUEEN MARY & WESTFIELD COLL,MILE END RD,LONDON E1 4NS,ENGLAND

来源：

COMPOSITES | 1993年 / 24卷 / 04期

关键词：

COMPOSITE MATERIALS; POSTIMPACT COMPRESSION TESTING; NORMALIZED MODULUS REDUCTION; DAMAGE WIDTH; STRESS MAGNIFICATION; FINITE ELEMENT ANALYSIS; CARBON FIBERS; GLASS FIBERS; EPOXY; PEEK;

D O I：

10.1016/0010-4361(93)90043-8

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The post-impact compression behaviour of three different laminates has been measured experimentally. It was observed that normalized values of post-impact compression strength of dissimilar laminates were similar when considered as a function of damage width. This observation has been investigated using a finite element model. The model is based on the hypothesis that failure in post-impact compression occurs via the stress magnification arising from the presence of the damaged zone. The implied values of the modulus of the damaged zone are deduced. These values are found to be dependent on the damage width. The model provides an explanation for the failure in compression of impacted plates that does not invoke fracture mechanics concepts and is therefore compatible with experimental results that indicate comparable performance from laminates that exhibit different G(IC) and G(IIC) values.

引用

页码：333 / 339

页数：7

共 13 条

[1] AN ASSESSMENT OF THE IMPACT PERFORMANCE OF CFRP REINFORCED WITH HIGH-STRAIN CARBON-FIBERS [J].

CANTWELL, WJ ;

CURTIS, PT ;

MORTON, J .

COMPOSITES SCIENCE AND TECHNOLOGY, 1986, 25 (02) :133-148

[2]

EVANS RE, 1987, ASTM STP, V937, P413

[3] A PREDICTIVE MODEL FOR PARTICULATE FILLED COMPOSITE-MATERIALS .2. SOFT PARTICLES [J].

GUILD, FJ ;

YOUNG, RJ .

JOURNAL OF MATERIALS SCIENCE, 1989, 24 (07) :2454-2460

[4]

GUILD FJ, 1991, COMPOSITE STRUCTURES, V6

[5]

HOGG PJ, 1992, ECCM COMPOSITES TEST

[6]

ILCEWICZ LB, 1989, 21ST P INT SAMPE TEC, P130

[7]

MASTERS JE, 1987, P ICCM 6 ECCM2

[8] THE ROLE OF IMPACT DAMAGE IN POSTIMPACT COMPRESSION TESTING [J].

PRICHARD, JC ;

HOGG, PJ .

COMPOSITES, 1990, 21 (06) :503-511

[9]

PRICHARD JC, 1991, P ICCM 8, P28

[10]

PRICHARD JC, 1991, THESIS U LONDON UK

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