Analysis and design of adhesively bonded joints for fatigue and fracture loading: a fracture-mechanics approach

被引：14

作者：

Azari, S. ^{[1
]}

Ameli, A. ^{[1
]}

Papini, M. ^{[2
]}

Spelt, J. K. ^{[1
]}

机构：

[1] Univ Toronto, Dept Mech & Ind Engn, Toronto, ON M5S 3G8, Canada

[2] Ryerson Univ, Dept Mech & Ind Engn, Toronto, ON M5B 2K3, Canada

来源：

JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY | 2013年 / 27卷 / 15期

基金：

加拿大自然科学与工程研究理事会;

关键词：

toughened adhesive; fracture mechanics; fatigue; adhesive thickness; adherend modulus; surface roughness; MIXED-MODE-I/II; TOUGHENED EPOXY ADHESIVE; ENERGY-RELEASE RATES; COHESIVE ZONE MODEL; SINGLE LAP JOINTS; CRACK-GROWTH; COMPOSITE JOINTS; FAILURE ANALYSIS; PART II; STRENGTH PREDICTION;

D O I：

10.1080/01694243.2012.748434

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

An experimental-computational fracture-mechanics approach for the analysis and design of structural adhesive joints under static loading is demonstrated by predicting the ultimate fracture load of cracked lap shear and single lap shear aluminum and steel joints bonded using a highly toughened epoxy adhesive. The predictions are then compared with measured values. The effects of spew fillet, adhesive thickness, and surface roughness on the quasi-static strength of the joints are also discussed. This fracture-mechanics approach is extended to characterize the fatigue threshold and crack growth behavior of a toughened epoxy adhesive system for design purposes. The effects of the mode ratio of loading, adhesive thickness, substrate modulus, spew fillet, and surface roughness on the fatigue threshold and crack growth rates are considered. A finite element model is developed to both explain the experimental results and to predict how a change in an adhesive system affects the fatigue performance of the bonded joint.

引用

页码：1681 / 1711

页数：31

共 95 条

[1]

Abdel Wahab M.M, 2001, J ADHES SCI TECHNOL, V15, P763

[2]

Abdel-Wahab MM, 2011, J ADHES SCI TECHNOL, V25, P925

[3] Fatigue crack growth in double cantilever beam specimen with an adhesive layer [J].

Abou-Hamda, MM ;

Megahed, MM ;

Hammouda, MMI .

ENGINEERING FRACTURE MECHANICS, 1998, 60 (5-6) :605-614

[4] STRENGTH PREDICTIONS FOR LAP JOINTS, ESPECIALLY WITH COMPOSITE ADHERENDS - A REVIEW [J].

ADAMS, RD .

JOURNAL OF ADHESION, 1989, 30 (1-4) :219-242

[5] Crack growth in adhesively bonded joints subjected to variable frequency fatigue loading [J].

Al-Ghamdi, AH ;

Ashcroft, IA ;

Crocombe, AD ;

Abdel-Wahab, MM .

JOURNAL OF ADHESION, 2003, 79 (12) :1161-1182

[6] Fracture R-curve characterization of toughened epoxy adhesives [J].

Ameli, A. ;

Papini, M. ;

Schroeder, J. A. ;

Spelt, J. K. .

ENGINEERING FRACTURE MECHANICS, 2010, 77 (03) :521-534

[7]

[Anonymous], 1995, D2651 ASTM

[8] A Comparison of the Prediction of Fatigue Damage and Crack Growth in Adhesively Bonded Joints Using Fracture Mechanics and Damage Mechanics Progressive Damage Methods [J].

Ashcroft, I. A. ;

Shenoy, V. ;

Critchlow, G. W. ;

Crocombe, A. D. .

JOURNAL OF ADHESION, 2010, 86 (12) :1203-1230

[9] The effect of environment on the fatigue of bonded composite joints. Part 1: testing and fractography [J].

Ashcroft, IA ;

Wahab, MMA ;

Crocombe, AD ;

Hughes, DT ;

Shaw, SJ .

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2001, 32 (01) :45-58

[10] Mode I fracture of epoxy bonded composite joints - 2. Fatigue loading [J].

Ashcroft, IA ;

Shaw, SJ .

INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES, 2002, 22 (02) :151-167

← 1 2 3 4 5 6 7 8 9 10 →