THE STRESS ANALYSIS ON TWO DIFFERENT ADHESIVELY BONDED T-JOINTS VIA 3D NONLINEAR FINITE ELEMENT METHOD

Adhesively bonded joints are formed in different configurations. T- adhesively bonded joint is one of these configurations and has an important position in industrial applications. The purpose of this study was to numerically study the stress distributions, strength, damage evolution of different T-joints with or without adhesive filling at the curvature of the L-shaped adherends under tensile load via 3D nonlinear finite element method. Here, type-I T-joint is the first model without adhesive filling at the curvature of the L-shaped adherends and type-II T-joint is the second model with adhesive filling at the curvature of the L-shaped adherends. In this study, FM73 and 3M 2214 adhesives and AA2024-T3 aluminum alloy adherends have been used to create two different T-joints numerically. Numerical analysis results have shown that the presence of filler adhesive has a direct influence on joint strength. It has also been observed that ABCD interface is the most critical region in terms of damage occurrence, while is AB and BC lines on the ABCD interface are the most critical lines. In addition, it was observed upon comparing the stress distributions of lines AB and BC that the shear and normal stress values decreased in lines AB and BC of the type-II T-joints. Therefore, it can be put forth that the strength of Type-II T-joints is greater in comparison with the strength of type-I T-joints and the use of a type-II T-joints is more suitable for loads which are close to the fracture load of the T-joints.

Keywords:

T Adhesively Bonded Joints, Finite Element Method,

PDF

___

[1] Zhan X, Gu C, Wu H, Liu H, Chen J, Chen J, Wei Y. Experimental and numerical analysis on the strength of 2060 Al–Li alloy adhesively bonded T joints. International Journal of Adhesion and Adhesives 2016; 65, 79-87. https://doi.org/10.1016/j.ijadhadh.2015.11.010.
[2] Adams RD, Comyn J, Wake WC. Structural adhesive joints in engineering. Springer Science & Business Media, 1997.
[3] Da Silva LF, Adams RD. The strength of adhesively bonded T-joints. International journal of adhesion and adhesives 2002; 22(4), 311-315. https://doi.org/10.1016/S0143-7496(02)00009-X.
[4] Aydin MD, Akpinar S. The strength of the adhesively bonded T-joints with embedded supports. International Journal of Adhesion and Adhesives 2014; 50, 142-150. https://doi.org/10.1016/j.ijadhadh.2013.12.028.
[5] Abdullah AR, Afendi M, Majid MA. Effect of adhesive thickness on adhesively bonded T-joint. In IOP Conference Series: Materials Science and Engineering (Vol. 50, No. 1, p. 012063). IOP Publishing, 2013.
[6] Apalak ZG, Apalak MK, Davies R. Analysis and design of tee joints with double support. International journal of adhesion and adhesives 1996; 16(3), 187-214. https://doi.org/10.1016/0143-7496(96)87013-8.
[7] Izzawati B, Afendi M, Nurhashima S, Nor A, Abdullah AR, Daud R. Evaluation of Adhesive T-joint Using Finite Element Analysis. Applied Mechanics & Materials 2015; 786.
[8] Aydın MD. 3-D nonlinear stress analysis on adhesively bonded single lap composite joints with different ply stacking sequences. The Journal of Adhesion 2008; 84(1), 15-36. https://doi.org/10.1080/00218460801888359.
[9] Kumar S, Pandey PC. Behaviour of bi-adhesive joints. Journal of Adhesion Science and Technology 2010; 24(7), 1251-1281. https://doi.org/10.1163/016942409X12561252291982.
[10] Khalili SMR, Ghaznavi A. Numerical analysis of adhesively bonded T-joints with structural sandwiches and study of design parameters. International Journal of Adhesion and Adhesives 2011; 31(5), 347-356. https://doi.org/10.1016/j.ijadhadh.2010.12.005.
[11] Bianchi F, Koh TM, Zhang X, Partridge IK, Mouritz AP. Finite element modelling of z-pinned composite Tjoints. Composites Science and Technology 2012; 73, 48-56. https://doi.org/10.1016/j.compscitech.2012.09.008.
[12] May M, Hesebeck O. Failure of adhesively bonded metallic T-joints subjected to quasi-static and crash loading. Engineering Failure Analysis 2015; 56, 454-463. https://doi.org/10.1016/j.engfailanal.2014.12.007.
[13] Carneiro MAS, Campilho RDSG. Analysis of adhesively-bonded T-joints by experimentation and cohesive zone models. Journal of adhesion science and Technology 2017; 31(18), 1998-2014. https://doi.org/10.1080/01694243.2017.1291320.
[14] Azam A, Mubashar A, Ashcroft IA, Uddin E, Jaffery SHI. A numerical study of the effect of ply-layup on the strength and stiffness of a composite T-joint under three point bending. Journal of adhesion science and Technology 2017; 31(19-20), 2124-2138. https://doi.org/10.1080/01694243.2017.1278818.
[15] Sutherland LS, Amado C, Soares CG. Statistical experimental design techniques to investigate the strength of adhesively bonded T-joints. Composite Structures 2017; 159, 445-454. https://doi.org/10.1016/j.compstruct.2016.09.076.
[16] Khosravani MR, Weinberg K. Characterization of sandwich composite T-joints under different ageing conditions. Composite Structures 2018; 197, 80-88. https://doi.org/10.1016/j.compstruct.2018.05.043.
[17] Bigaud J, Aboura Z, Martins AT, Verger S. Analysis of the mechanical behavior of composite T-joints reinforced by one side stitching. Composite Structures 2018; 184, 249-255. https://doi.org/10.1016/j.compstruct.2017.06.041.
[18] Li W, Pang B, Han X, Tang L, Zhao K, Hu P. Predicting the strength of adhesively bonded T-joints under cyclic temperature using a cohesive zone model. The Journal of Adhesion 2016; 92(11), 892-907. https://doi.org/10.1080/00218464.2015.1055354.
[19] Şenalp Z. Investigation of the Effects of Geometric and Load Perturbation to Buckling in Multilayered Torispherical Pressure Vessel Heads. Journal of Thermal Engineering 2015; 1(6), 203-209.

Başlangıç: 2015
Yayıncı: YILDIZ TEKNİK ÜNİVERSİTESİ

Arşiv