Abstract
In this study, the fracture characteristics on the adhesive interfaces in the structures composed of aluminum foam were investigated by using three kinds of TDCB specimens with the thicknesses of 25 mm, 50 mm and 75 mm and the length of 200 mm. According to the test results for the 25 mm-thick specimens, the maximum reaction force of about 200 N was shown when forced displacement progressed as the amount of about 6 mm to 7 mm. And the reaction force nearly was disappeared after the forced displacement progressed as the amount of about 22 mm. Similar trends were observed in cases of other specimens with thicknesses of 50 mm and 75 mm. As the forced displacement was gradually increased,fractures began to occur with the separation from the bonded interface beginning when the equivalent stress happened at the bonded interface was larger than the adhesive stress of 0.167 MPa at the bonding interface. Such experimental results can be verified by simulation analysis results. Therefore, fracture characteristics of aluminum foam consisting of the porous cores are considered to be identifiable through only simulations instead of experiments without requiring significant cost or time.
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Kim, D. Y., Kwak, J. H., Lee, J. H., Park, K. W., Jeong, K. Y., and Cheon, S. S., A Study on the Vibration Analysis for the Composite Multi-Axial Optical Structure of an Aircraft, Composites Research, Vol. 24, No. 2, pp. 14–21, 2011.
British Standard Institution, Determination of the Mode I Adhesive Fracture Energy Gic of Structure Adhesives using the Double Cantilever Beam (DCB) and Tapered Double Cantilever Beam (TDCB) Specimens, BS 7991, 2001.
Bang, S. O., Kim, K. S., Kim, S. H., Song, S. G., and Cho, J. U., Study on Compression Tests of Aluminum Foam and Honeycomb Sandwich Composites, Journal of the Korea Academia-Industrial Cooperation Society, Vol. 12, No. 9, pp. 3802–3807, 2011.
Cho, H. Y., Kim, D. B., and Kim, K. W., Shape Design of Self-Piercing Rivet for Joining Dissimilar Sheet Metals, Journal of Korea Society of Mechanical Technology, Vol. 14, No. 3, pp. 93–99, 2012.
Lee, J.-K., Elastic Analysis in Composite including Multiple Elliptical Fibers, Composites Research, Vol. 24, No. 6, pp. 37–48, 2011.
Kim, J. G., Hwang, Y. J., and Yoon, S. H., Improvement of the Fracture Toughness of Adhesively Bonded Stainless Steel Joints with Aramid Fibers at Cryogenic Temperatures, Composite Structures, Vol. 94, No. 9, pp. 2982–2989, 2012.
Kim, S. S., Han, M. S., Cho, J. U., and Cho, C. D., Study on the Fatigue Experiment of TDCB Aluminum Foam Specimen Bonded with Adhesive, Int. J. Precis. Eng. Manuf., Vol. 14, No. 10, pp. 1791–1795, 2013.
Marzi, S., Biel, A., and Stigh, U., On Experimental Methods to Investigate the Effect of Layer Thickness on the Fracture Behavior of Adhesively Bonded Joints, International Journal of Adhesion and Adhesives, Vol. 31, No. 8, pp. 840–850, 2011.
Hart-Smith, L., Further Developments in the Design and Analysis of Adhesive-Bonded Structural Joints, Douglas Aircraft Co., McDonnell Douglas Corporation, Paper 6922, presented to ASTM Conference on Jointing of Composite Materials (STP 749), 1980.
Choi, H. K. and Cho, J. U., Study on the Fatigue Analysis of DCB Model with Aluminum Foam, Journal of Korean Society of Mechanical Technology, Vol. 14, No. 6, pp. 39–43, 2012.
Zhang, Y. J. and Yang, C. S., Fem Analyses for Influences of Stress-Chemical Solution on Thm Coupling in Dual-Porosity Rock Mass, Journal of Central South University, Vol. 19, No. 4, pp. 1138–1147, 2012.
Han, M. S., Choi, H. K., Cho, J. U., and Cho, C. D., Experimental Study on the Fatigue Crack Propagation Behavior of DCB Specimen with Aluminum Foam, Int. J. Precis. Eng. Manuf., Vol. 14, No. 8, pp. 1395–1399, 2013.
Blackman, B. R. K., Dear, J. P., Kinloch, A. J., Macgillivray, H., Wang, Y., et al., The Failure of Fibre Composites and Adhesively-Bonded Fibre Composites under High Rates of Test Part III Mixedmode I/II and Mode IILoadings, Journal of Materials Science, Vol. 31, No. 17, pp. 4467–4477, 1996.
Ohno, N., Okumura, D., and Niikawa, T., Long-Wave Buckling of Elastic Square Honeycombs Subject to In-Plane Biaxial Compression, International Journal of Mechanical Sciences, Vol. 46, No. 11, pp. 1697–1713, 2004.
Sun, J. and Zhang, L., Vehicle Actuation based Short-Term Traffic Flow Prediction Model for Signalized Intersections, Journal of Central South University, Vol. 19, No. 1, pp. 287–298, 2012.
Qiao, P., Wang, J., and Davalos, J. F., Tapered Beam on Elastic Foundation Model for Compliance Rate Change of TDCB Specimen, Engineering Fracture Mechanics, Vol. 70, No. 2, pp. 339–353, 2003.
Michailidis, N., Stergioudi, F., Omar, H., and Tsipas, D., An Imagebased Reconstruction of the 3D Geometry of an Al Open-Cell Foam and Fem Modeling of the Material Response, Mechanics of Materials, Vol. 42, No. 2, pp. 142–147, 2010.
Cho, J. U., Hong, S. J., Lee, S. K., and Cho, C., Impact Fracture Behavior at the Material of Aluminum Foam, Materials Science and Engineering: A, Vol. 539, pp. 250–258, 2012.
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Sun, H.P., Cho, J.U. A study on the fracture characteristics of tapered double cantilever specimens bonded with aluminum foams of varying thicknesses. Int. J. Precis. Eng. Manuf. 16, 2179–2184 (2015). https://doi.org/10.1007/s12541-015-0280-1
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DOI: https://doi.org/10.1007/s12541-015-0280-1