Mode II modeling of adhesive materials degraded by fatigue loading using cohesive zone elements

被引：28

作者：

Monteiro, J. ^{[1
]}

Akhavan-Safar, A. ^{[2
]}

Carbas, R. ^{[2
]}

Marques, E. ^{[2
]}

Goyal, R. ^{[3
]}

El-zein, M. ^{[4
]}

da Silva, L. F. M. ^{[1
]}

机构：

[1] Univ Porto, Dept Mech Engn, Fac Engn, Rua Dr Roberto Frias, P-4200465 Porto, Portugal

[2] Inst Sci & Innovat Mech & Ind Engn INEGI, Rua Dr Roberto Frias, P-4200465 Porto, Portugal

[3] Deere & Co, Asia Technol & Innovat Ctr, Pune 411013, Maharashtra, India

[4] Deere & Co, Moline Technol & Innovat Ctr, Moline, IL 61265 USA

来源：

THEORETICAL AND APPLIED FRACTURE MECHANICS | 2019年 / 103卷

关键词：

Adhesive joints; Fatigue life; Pure mode II; User element; Cohesive zone model; Paris law; BONDED JOINTS; STRESS RATIO; DELAMINATION; COMPOSITES; SIMULATION; FRACTURE; FAILURE; GROWTH;

D O I：

10.1016/j.tafmec.2019.102253

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Because of maintenance issues, the concept of safe life is an important philosophy for designing adhesive joints where the service load is cyclic. However, this philosophy needs a tool to be able to estimate the total fatigue life. The objective of this study is to develop a numerical tool to predict the fatigue life of adhesive joints for pure mode II loading conditions. To achieve this, a previously published mode I data degradation approach was extended for pure mode II. Fatigue tests were performed on end notched flexure (ENF) specimens to calibrate the degradation model. A triangular shape cohesive zone model (CZM) in combination with a data degradation method were considered in an Abaqus user element (UEL) subroutine. Based on the results, it was found that the proposed method can be applied for fatigue life estimation of adhesive joints in pure mode II conditions as well as pure mode I.

引用

页数：7

共 28 条

[1] Finite element interface models for the delamination analysis of laminated composites: Mechanical and computational issues [J].