Prediction of fatigue thresholds in adhesively bonded joints using damage mechanics and fracture mechanics

2001 ◽  
Vol 15 (7) ◽  
pp. 763-781 ◽  
Author(s):  
M. M. Abdel Wahab ◽  
I. A. Ashcroft ◽  
A. D. Crocombe ◽  
S. J. Shaw
Keyword(s):  
Fracture Mechanics ◽  
Damage Mechanics ◽  
Bonded Joints ◽  
Adhesively Bonded ◽  
Adhesively Bonded Joints

Numerical and experimental analyses of a fracture mechanics test for adhesively bonded joints

1999 ◽  
Vol 13 (8) ◽  
pp. 931-957 ◽  
Author(s):  
F. Bay ◽  
P.O. Bouchard ◽  
E. Darque-Ceretti ◽  
E. Felder ◽  
S. Scotto-Sheriff
Keyword(s):  
Fracture Mechanics ◽  
Bonded Joints ◽  
Adhesively Bonded ◽  
Adhesively Bonded Joints ◽  
Experimental Analyses

Fatigue Life Estimation of Adhesively Bonded Scarf Joints Based on a Continuum Damage Mechanics Model

2005 ◽  
Vol 13 (4) ◽  
pp. 359-370 ◽  
Author(s):  
Makoto Imanaka ◽  
Makoto Taniguchi ◽  
Tatuyuki Hamano ◽  
Masaki Kimoto
Keyword(s):  
Fatigue Strength ◽  
Damage Evolution ◽  
Damage Mechanics ◽  
Estimation Method ◽  
Adhesive Layer ◽  
Epoxy Adhesive ◽  
Bonded Joints ◽  
Adhesively Bonded ◽  
Adhesively Bonded Joints ◽  
Scarf Joints

An estimation method of fatigue strength of adhesively bonded joints with various stress triaxialities in the adhesive layer has been proposed based on a damage evolution model for high cycle fatigue. To realize various triaxial stress states, fatigue test was conducted for adhesively bonded butt and scarf joints with various scarf angles bonded by a rubber-modified epoxy adhesive. An equation for estimating the damage evolution in the adhesive layer of the butt and scarf joints was derived from the damage model, where undefined parameters in the equation were determined by comparing the experimentally obtained damage evolution curves of the butt joints with the estimated damage evolution curves. Furthermore, an equation for the estimation of fatigue strength was derived under the assumption that fatigue failure occurs when the damage variable reaches to a critical value. When compared the experimental S-N data of scarf joints with the estimated ones, the estimated fatigue strengths agree well with the experimental data with various scarf angles. This finding suggests that the CDM model is applicable for estimating fatigue strength of adhesively bonded joints with different stress triaxialities.

Fracture Mechanics Tests in Adhesively Bonded Joints: A Literature Review

2014 ◽  
Vol 90 (12) ◽  
pp. 955-992 ◽  
Author(s):  
Filipe J. P. Chaves ◽  
L. F. M. da Silva ◽  
M. F. S. F. de Moura ◽  
D. A. Dillard ◽  
V. H. C. Esteves
Keyword(s):  
Fracture Mechanics ◽  
Literature Review ◽  
Bonded Joints ◽  
Adhesively Bonded ◽  
Adhesively Bonded Joints

Nonlinear Viscoelastic Finite Element Analysis of Adhesive Joints

1988 ◽  
Vol 16 (3) ◽  
pp. 146-170 ◽  
Author(s):  
S. Roy ◽  
J. N. Reddy
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Viscoelastic Behavior ◽  
Bonded Joints ◽  
Adhesively Bonded ◽  
Element Analysis ◽  
Adhesively Bonded Joints ◽  
Nonlinear Viscoelastic ◽  
Structural Failures ◽  
Updated Lagrangian

Abstract A good understanding of the process of adhesion from the mechanics viewpoint and the predictive capability for structural failures associated with adhesively bonded joints require a realistic modeling (both constitutive and kinematic) of the constituent materials. The present investigation deals with the development of an Updated Lagrangian formulation and the associated finite element analysis of adhesively bonded joints. The formulation accounts for the geometric nonlinearity of the adherends and the nonlinear viscoelastic behavior of the adhesive. Sample numerical problems are presented to show the stress and strain distributions in bonded joints.

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