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A finite element modelling methodology for the non-linear stiffness evaluation of adhesively bonded single lap-joints. Part 2, Novel shell mesh to minimise analysis time

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Pearson, Ian T. and Mottram, J. Toby (James Toby), 1958-. (2012) A finite element modelling methodology for the non-linear stiffness evaluation of adhesively bonded single lap-joints. Part 2, Novel shell mesh to minimise analysis time. Computers & Structures, Vol.90-91 . pp. 89-96. ISSN 0045-7949

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Official URL: http://dx.doi.org/10.1016/j.compstruc.2011.10.006

Abstract

A new modelling methodology is presented that enables the stiffness of adhesively bonded single lap-joints to be included in the finite element analysis of whole vehicle bodies. This work was driven by the need to significantly reduce computing resources for vehicle analysis. To achieve this goal the adhesive bond line and adherends are modelled by a relatively ‘small’ number of shell elements to replace the usual solid element mesh for a reliable analysis. Previous work in Part 1 has provided the necessary background information to develop and verify the new finite element analysis that reduces the solution runtime by a factor of 1000. Although a joint’s non-linear stiffness is reliably simulated to failure load, it is recognised by the authors that the coarse shell mesh cannot provide accurate peak stresses or peak strains for the successful application of a numerical failure criterion. Given that the new modelling methodology is very quick to apply to existing shell models of vehicle bodies, it is recommended for use by the stress analyst who requires, say at the preliminary design stage, whole vehicle stiffness performance in a significantly reduced timeframe.

Item Type:	Journal Article
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TL Motor vehicles. Aeronautics. Astronautics
Divisions:	Faculty of Science > Engineering Faculty of Science > WMG (Formerly the Warwick Manufacturing Group)
Library of Congress Subject Headings (LCSH):	Finite element method, Joints (Engineering) -- Mathematical models, Adhesives -- Mathematical models, Vehicles -- Bodies -- Mathematical models
Journal or Publication Title:	Computers & Structures
Publisher:	Pergamon
ISSN:	0045-7949
Date:	January 2012
Volume:	Vol.90-91
Number of Pages:	8
Page Range:	pp. 89-96
Identification Number:	10.1016/j.compstruc.2011.10.006
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
References:	[1] W. C. Carpenter, Two Finite Elements For Modelling The Adhesive In Bonded Configurations. J Adhesion. 30 (1989) 25-46. [2] D. A. Wagner , FEA (Finite Element Analysis) Modeling for Body-In-White Adhesives. SAE 960784 (1996). [3] Y. M. Moon, T. H. Jee, Y. P. Park, Development of an Automotive Joint Model Using an Analytically Based Formulation, J Sound Vib 220(4) (1999) 625-640. [4] S. Steidler, Structural modelling of adhesive joints in automotive bodies, PhD, Oxford Brookes (2000). [5] T. Wang, O. S. Hopperstad, P. K. Larson, O. G. Lademo, Evaluation of Finite Element Modelling Approach for Welded Aluminium Structures. WIT Transactions for Engineering Science, 49. ISSN 1743-3533. WIT Press 2005. [6] I. J. McGregor, D. Nardini, Y.Gao, D Meadows, A Joint Design Approach for Aluminium Structures. Automot Eng (August 1993) 49-53. [7] Gilchrist and R. A. Smith, Development of Cohesive Fatigue Cracks in T-Peel Joints. Int J Adh Adh, 13(1) (1993). [8] T. Jones, N. Williams, The Fatigue Properties of Spot Welded, Adhesive Bonded and Weld-Bonded Joints in High-Strength Steels. SAE Technical Paper 860583, Michigan, (1986). [9] H. Kitagower, Y. Yoshida, A Study of Bending and Torsion Rigidities of Weld Bonded Structures. JSAE Rev 13(4) (October 1992) 72-76. [10] I. T. Pearson, J T. Mottram, A finite element modelling methodology for the nonlinear stiffness of adhesively bonded single lap-joints. Part 1. Evaluation of key parameters. Computers and Structures (2011) [11] D. A.Wagner, FEA (Finite Element Analysis) Modeling for Body-In-White Adhesives. SAE 960784 (1996). [12] O. Volkersen, Die Nietkraftverteilung in Zugbeanspruchten Nietverbindungen Mit Konstanten Laschenquerschnitten (Rivet Strength Distribution in Tensile-Stressed Rivet Joints With Constant Cross Section). Luftfahrforschung, 15 (German language) (1938). [13] M. Goland, E. Reissner, The Stresses in Cemented Joints. J Appl Mech, Trans ASME, 66 (1944) A17-A27. [14] I. T. Pearson, A Method For The Inclusion Of Adhesively Bonded Joints In The Finite Element Analysis Of Automobile Structures. PhD Thesis, University of Warwick. (2006) [15] ANSYS Version 10.0. Element Reference, Ch 4 Element Library. Swanson Analysis Systems Inc. PO Box 65, Johnson Road, Houston, PA 15342-0065. (2005). [16] G. Richardson, A. D. Crocombe, P.A. Smith, A Comparison of two- and three- Dimensional Finite Element Analyses of Adhesive Joints. Int J Adhes Adhes, 13(3) (1993) 193-2000 [17] A Finite Element Primer, National Agency for Finite Element Methods and Standards, East Kilbride, ISBN 0 903640 17 1 (1986). [18] D. Castagnetti, E. Dragoni, Standard finite element techniques for efficient stress analysis of adhesive joints - Int J Adhes Adhes 29 (2009) p125-135.
URI:	http://wrap.warwick.ac.uk/id/eprint/40690