Analytical and numerical approach of an End Notched Flexure test configuration with an inserted roller for promoting mixed mode I/II

被引：16
|
作者：
Boyano, A. [1 ]
Mollon, V. [2 ]
Bonhomme, J. [2 ]
De Gracia, J. [1 ]
Arrese, A. [1 ]
Mujika, F. [1 ]
机构：
[1] Univ Basque Country, Polytech Univ Coll, Dept Mech Engn, Mat Technol Grp, San Sebastian 20018, Spain
[2] Univ Oviedo, Dept Mat Sci & Met Engn, Gijon, Asturias, Spain
来源：
ENGINEERING FRACTURE MECHANICS | 2015年 / 143卷
关键词：
Composites; Delamination; Fracture mechanics; Finite element analysis; Mixed mode fracture; BENDING DELAMINATION TEST; BEAM-THEORY MODEL; INTERLAMINAR FRACTURE; FIBER-COMPOSITE; SPECIMENS; MODULI;
D O I：
10.1016/j.engfracmech.2015.06.031
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A test configuration for studying mixed-mode is analyzed analytically and numerically. It is based on the End Notched Flexure test, inserting a roller in the cracked part in order to promote mixed mode I/II. The analytical approach includes the calculation of the force exerted by the roller, the midpoint displacement, the compliance of the test, and the relative displacement of both arms of the crack. Moreover, the energy release rate is determined based on the complementary strain energy. With respect to numerical analysis, the two-step extension procedure is used for determining energy release rates in mode I and mode II. Comparison between analytical and numerical results has been carried out in order to check the suitability of the test method. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：63 / 79
页数：17
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