An enhanced beam-theory model of the mixed-mode bending (MMB) test-Part II: Applications and results

被引：38

作者：

Bennati, Stefano ^{[1
]}

Fisicaro, Paolo ^{[1
]}

Valvo, Paolo S. ^{[1
]}

机构：

[1] Univ Pisa, Dipartimento Ingn Civile & Ind, I-56126 Pisa, Italy

来源：

MECCANICA | 2013年 / 48卷 / 02期

关键词：

Mixed-mode bending (MMB) test; Beam-theory model; Finite element analysis; Compliance; Energy release rate; Mode mixity; END-NOTCHED-FLEXURE; I+II INTERLAMINAR FRACTURE; CRACK-PROPAGATION; DATA REDUCTION; DELAMINATION; SPECIMEN; COMPOSITES; TOUGHNESS;

D O I：

10.1007/s11012-012-9682-7

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The paper presents an enhanced beam-theory (EBT) model of the mixed-mode bending (MMB) test, whereby the specimen is considered as an assemblage of two sublaminates partly connected by an elastic-brittle interface. Analytical expressions for the compliance, energy release rate, and mode mixity are deduced. A compliance calibration strategy enabling numerical or experimental evaluation of the interface elastic constants is also presented. Furthermore, analytical expressions for the crack length correction parameters-analogous to those given by the corrected beam-theory (CBT) model for unidirectional laminated specimens-are furnished for multidirectional laminated specimens, as well. Lastly, an example application to experimental data reduction is presented.

引用

页码：465 / 484

页数：20

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[2]

ASTM, 2006, D6671D6671M06 ASTM, DOI [10.1520/D6671_D6671M-06, DOI 10.1520/D6671_]

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