This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Failure Modeling of Adhesive Bonded Joints with Cohesive Elements
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 28, 2017 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Advanced high strength steels (AHSS) have been extensively used in the automotive industry for vehicle weight reduction. Although AHSS show better parent metal fatigue performance, the influence of material strength on spot weld fatigue is insignificant. To overcome this drawback, structural adhesive can been used along with spot weld to form weld-bond joints. These joints significantly improve spot weld fatigue performance and provide high joint stiffness enabling down-gauge of AHSS structures. However, modeling the adhesive joints using finite element methods is a challenge due to the nonlinear behavior of the material. In this study, the formulation of cohesive element based on the traction-separation constitutive law was applied to predict the initiation and propagation of the failure mode in the adhesively bonded joints for lap shear and coach peel specimens subjected to quasi-static loadings. The predicted load versus displacement relations correlated well with the test results.
CitationChen, G. and Guo, M., "Failure Modeling of Adhesive Bonded Joints with Cohesive Elements," SAE Technical Paper 2017-01-0351, 2017, https://doi.org/10.4271/2017-01-0351.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
- Guo, M., Bhandarkar, R., Zhang, W., Chen, G. et al., "An Experimental Study on Static and Fatigue Strengths of Resistance Spot Welds with Stack-up of Advanced High Strength Steels and Adhesive," SAE Technical Paper 2016-01-0389, 2016, doi:10.4271/2016-01-0389.
- Bonnen, J., Agrawal, H., Amaya, M., Iyengar, R. et al., "Fatigue of Advanced High Strength Steel Spot-Welds," SAE Technical Paper 2006-01-0978, 2006, doi:10.4271/2006-01-0978.
- Mohan Iyengar, R., Laxman, S., Amaya, M., Citrin, K. et al., "Influence of Geometric Parameters and Their Variability on Fatigue Resistance of Spot-Weld Joints," SAE Int. J. Mater. Manf. 1(1):299-316, 2009, doi:10.4271/2008-01-0698.
- ABAQUS Analysis User’s Manual, Vol. IV (Ver. 6.12), 2012, Dassault Systèmes Simulia Corp., Providence, RI.
- Diehl, T., “Modeling Surface-Bonded Structures with ABAQUS Cohesive Elements: Beam-Type Solutions,” 2004 ABAQUS Users’ Conference, Boston, MA, 2004.
- Song, K., Davila, C. G., and Rose, C. A., “Guidelines and Parameter Selection for the Simulation of Progressive Delamination,” 2008 ABAQUS Users’ Conference, Newport. RI, 2008.
- Benzeggagh, M. L., and Kenane M., “Measurement of Mixed-Mode Delamination Fracture Toughness of Unidirectional Glass/Epoxy Composites with Mixed-Mode Bending Apparatus,” Composites Science and Technology, vol. 56, pp. 439-449, 1996.