Transverse Failure Behavior of Fiber-epoxy Systems

被引：38

作者：

Alfaro, M. V. Cid ^{[1
]}

Suiker, A. S. J. ^{[1
]}

de Borst, R. ^{[2
]}

机构：

[1] Delft Univ Technol, Fac Aerosp Engn, NL-2600 GB Delft, Netherlands

[2] Eindhoven Univ Technol, Dept Mech Engn, NL-5600 MB Eindhoven, Netherlands

来源：

JOURNAL OF COMPOSITE MATERIALS | 2010年 / 44卷 / 12期

关键词：

fiber debonding; matrix cracking; cohesive zone model; discrete fracture; REINFORCED COMPOSITES; POLYMER COMPOSITES; METAL-MATRIX; CRACK-GROWTH; DELAMINATION; SIMULATION; FRACTURE; DAMAGE; PREDICTION; STRENGTH;

D O I：

10.1177/0021998309360941

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The transverse failure response of unidirectional fiber-epoxy systems is studied by means of finite element simulations. An interface damage model is used for modeling fiber debonding and epoxy cracking. The convergence of the numerical results upon mesh refinement is analyzed. It is found that the failure response depends on the relative strength and relative toughness of the fiber-epoxy interface and the epoxy matrix. The tensile failure response of epoxy systems containing multiple fibers is also analyzed. In addition, the simulations demonstrate the influence on the failure response by the relative strength of the fiber-epoxy interface and the epoxy matrix, and by the fiber volume fraction and fiber distribution. The simulated fracture patterns are shown to be in good agreement with experimental observations reported in the literature.

引用

页码：1493 / 1516

页数：24

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