Modelling brittle crack formation at geometrical and material discontinuities using a finite fracture mechanics approach

被引：55

作者：

Hebel, Jochen ^{[1
]}

Dieringer, Rolf ^{[1
]}

Becker, Wilfried ^{[1
]}

机构：

[1] Tech Univ Darmstadt, Fachgebiet Strukturmech, D-64289 Darmstadt, Germany

来源：

ENGINEERING FRACTURE MECHANICS | 2010年 / 77卷 / 18期

关键词：

Brittle fracture; Crack formation; Finite fracture mechanics; Notch; Laminate free edge effect; FAILURE CRITERION; COUPLED STRESS; NOTCHES; INITIATION; TOUGHNESS; ONSET;

D O I：

10.1016/j.engfracmech.2010.07.005

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this study finite fracture mechanics procedures are employed to predict crack formation at geometrical and material discontinuities in brittle elastic structures A hybrid failure model is utilised taking into account the stress field in the undamaged structure and the energy balance for the formation of cracks Asymptotic formulations are compared to a direct numerical implementation Experiments carried out on notched brittle specimens exhibiting various geometries and loading-modes are analysed by means of both approaches Additionally free-edge effects in composite laminates are analysed It is found that the predictions from the model agree well with experimental results (C) 2010 Elsevier Ltd All rights reserved

引用

页码：3558 / 3572

页数：15

共 28 条

[1]

Altenbach H., 2004, MECH COMPOSITE STRUC

[2] A finite fracture mechanics approach to structures with sharp V-notches [J].

Carpinteri, A. ;

Cornetti, P. ;

Pugno, N. ;

Sapora, A. ;

Taylor, D. .

ENGINEERING FRACTURE MECHANICS, 2008, 75 (07) :1736-1752

[3] Finite fracture mechanics: A coupled stress and energy failure criterion [J].

Cornetti, Pietro ;

Pugno, Nicola ;

Carpinteri, Alberto ;

Taylor, David .

ENGINEERING FRACTURE MECHANICS, 2006, 73 (14) :2021-2033

[4] An asymptotic matching approach to shallow-notched structural elements [J].

Cornetti, Pietro ;

Taylor, David ;

Carpinteri, Alberto .

ENGINEERING FRACTURE MECHANICS, 2010, 77 (02) :348-358

[5] A STUDY OF SUPERIMPOSED FRACTURE MODE-I, MODE-II AND MODE-III ON PMMA [J].

DAVENPORT, JCW ;

SMITH, DJ .

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 1993, 16 (10) :1125-1133

[6]

HARRY R, 1998, COMPTES RENDUS ONZIE, P787

[7] Finite thermoelastic fracture criterion with application to laminate cracking analysis [J].

Hashin, Z .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1996, 44 (07) :1129-1145

[8]

HEBEL J, 2008, MECH ADV MATER STRUC, V15, P1

[9]

Hebel J., 2006, PAMM, V6, P169

[10]

Kirsch EG, 1898, Z VEREINES DTSCH ING, V42, P797

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