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Experimental Study of Mixed Mode Fatigue Crack Growth of Automotive Structural Adhesive BM4601
Technical Paper
2017-01-0331
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Fatigue crack growth tests have been carried out to investigate the mixed mode fatigue crack propagation behavior of an automotive structural adhesive BM4601. The tests were conducted on a compound CMM (Compact Mixed Mode) specimen under load control with 0.1 R ratio and 3Hz frequency. A long distance moving microscope was employed during testing to monitor and record the real time length of the fatigue crack in the adhesive layer. The strain energy release rates of the crack under different loading angles, crack lengths and loads were calculated by using finite element method. The pure mode I and mode II tests show that an equal value of mode I strain energy release rate results in over ten times higher FCGR (Fatigue Crack Growth Rate) than the mode II stain energy release rate does. The mixed mode tests results show that under a certain loading angle, the mixed mode FCGR is changed by changing the load, which is contrary to the find in pure mode I and mode II tests.
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Citation
Chen, Q., Guo, H., Avery, K., Su, X. et al., "Experimental Study of Mixed Mode Fatigue Crack Growth of Automotive Structural Adhesive BM4601," SAE Technical Paper 2017-01-0331, 2017, https://doi.org/10.4271/2017-01-0331.Also In
References
- Huang , L. , Lasecki , J. , Guo , H. , and Su , X. Finite Element Modeling of Dissimilar Metal Self-piercing Riveting Process SAE Int. J. Mater. Manf. 7 3 698 705 2014 10.4271/2014-01-1982
- Kinloch AJ , Little MSG , Watts JF The Role of the interphase in the environmental failure of adhesive joints Acta mater 2000 48 18-19 4543 4553 10.1016/S1359-6454(00)00240-8
- Kinloch AJ Toughening epoxy adhesives to meet today’s challenges MRS Bulletin 2003 28 6 445 448 10.1557/mrs2003.126
- Hertzberg RW Deformation and fracture mechanics of engineering materials 4th John Wiley & Sons 1995
- Pirondi A. , Nicoletto G. Mixed Mode I/II fatigue crack growth in adhesive joints Engineering Fracture Mechanics 2006 73 2557 2568 10.1016/j.engfracmech.2006.04.009
- Hafiz T.A. , Abdel-Wahab M.M. , Crocombe A.D. , Smith P.A. Mixed-mode fatigue crack growth in FM73 bonded joints International Journal of Adhesion and Adhesives 2013 40 188 196 10.1016/j.ijadhadh.2012.07.004
- Fernando M. , Harjoprayitno W.W. and Kinloch A.J. A fracture mechanics study of the influence of moisture on the fatigue behavior of adhesively bonded aluminum-alloy joints International Journal of Adhesion and Adhesives 1996 16 113 119 10.1016/0143-7496(96)89799-5
- Anthony , Kinloch A. J. Adhesion and Adhesives Springer 1987
- Naghdali Choupani Mixed-mode cohesive fracture of adhesive joints: Experimental and numerical studies Engineering Fracture Mechanics 2008 75 4363 4382 10.1016/j.engfracmech.2008.04.023
- Datla N.V. , Ulicny J. , Carlson B. Mixed-mode fatigue behavior of degraded toughened epoxy adhesive joints International Journal of Adhesion and Adhesives 2011 31 88 96 10.1016/j.ijadhadh.2010.11.007
- Borrego L.P. , Antunes F.V. , Costa J.M. , Ferreira J.M. Mixed-mode fatigue crack growth behaviour in aluminium alloy International Journal of Fatigue 2006 28 618 626 10.1016/0143-7496(96)89799-5
- Fernando M , Harjoprayitno W W , Kinloch AJ A fracture mechanics study of the influence of moisture on the fatigue behaviour of adhesively bonded aluminium joints International Journal of Adhesion and Adhesives 1996 16 113 119 10.1016/0143-7496(96)89799-5
- Kinloch AJ , Little MSG , Watts JF The role of the interphase in the environmental failure of adhesive joints Acta Mater 2000 48 45 43 53 10.1016/S1359-6454(00)00240-8
- Jethwa JK , Kinloch AJ The fatigue and durability behavior of automotive adhesives Part I: fracture mechanics tests. J Adhesion 1997 61 71 95 10.1080/00218469708010517
- Azari S. , Papini M. , Spelt J.K. Effect of adhesive thickness on fatigue and fracture of toughened epoxy joints-Part I: Experiments Engineering Fracture Mechanics 2011 78 153 162
- Chen , Q. , Guo , H. , Lasecki , J. , Hill , J. et al. An Investigation on the Fatigue Behavior of Balanced and Unbalanced Epoxy-Aluminum Single Lap Joints SAE Technical Paper 2015-01-0551 2015 10.4271/2015-01-0551
- Arcan M , Hashin Z , Voloshin A A method to produce uniform plane stress states with applications to fiber reinforced materials Experimental Mechanics 1978 18 141 146 10.1007/BF02324146
- Voloshin A , Arcan M Pure shear module of unidirectional fiber-reinforced materials (FRM) Fibre Science and Technology 1980 13 125 134 10.1016/0015-0568(80)90041-X
- Wen-Jen Lai , Jwo Pan Stress intensity factor solutions for adhesive-bonded lap-shear specimens of magnesium and steel sheets with and without kinked cracks for fatigue life estimations Engineering Fracture Mechanics 2014 131 454 470 10.1016/j.engfracmech.2014.09.002
- Richard Richard. H. A. A new compact shear specimen International Journal of Fracture 1981 17 105 107
- ASTM Standard ASTM-E647-11.Standard Test Method for Measurement of Fatigue Crack Growth Rates