Torsion Property of the Structure Bonded Aluminum Foam Due to Impact

• Autorzy: Hwang G. W. , Cho J. U.

Identyfikatory

DOI

10.1515/amm-2017-0207

• Języki publikacji: EN

Abstrakty

EN

An aluminum foam added with foaming agent, is classified into an open-cell type for heat transfer and a closed-cell type for shock absorption. This study investigates the characteristic on the torsion of aluminum foam for a closed-cell type under impact. The fracture characteristics are investigated through the composite of five types of aluminum foam (the thicknesses of 25, 35, 45, 55 and 65 mm), when applying the torsional moment of impact energy on the junction of a porous structure attached by an adhesive. When applying the impact energy of 100, 200 and 300J, the aluminum foams with thicknesses of 25 mm and 35 mm broke off under all conditions. For the energy over 200J, aluminums thicker than 55 mm continued to be attached. Furthermore, the aluminum specimens with thicknesses of 55 mm and 65 mm that were attached with more than 30% of bonding interface remained, proving that they could maintain bonding interface against impact energy. By comparing the data based on the analysis and test result, an increase in the thickness of specimen leads to the plastic deformation as the stress at the top and bottom of bonding interface moves to the middle by spreading the stress horizontally. Based on this fracture characteristic, this study can provide the data on the destruction and separation of bonding interface and may contribute to the safety design.

Słowa kluczowe

EN

aluminum foam; bonding stress; fracture energy; adhesively bonded structure

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2017
• Tom: Vol. 62, iss. 2B
• Strony: 1353--1357
• Opis fizyczny: Bibliogr. 12 poz., rys., tab.

Twórcy

autor

Hwang G. W.

• Department of Mechanical Engineering, Graduate School, Kongju National University, Cheonan-Si, Korea (Republic of)

autor

Cho J. U.

• Division of Mechanical & Automotive Engineering, College of Engineering, Kongju National University, 1223-24 Cheonan Daero, Seobuk-Gu, Cheonan-Si, Chungnam 31080, Korea (Republic of)

Bibliografia

• [1] R. Davidson, R.J. Lee, MTS Adhesives Project 2 (1995).
• [2] A. Pirondi, G. Nicoletto, Engineering Fracture Mechanics 71, 859 (2004).
• [3] N.Y. Chung, S.I. Park, International Journal of Automotive Technology 5, 303 (2004).
• [4] International Standards Organization, ISO 11343, Geneva (1993).
• [5] British Standard, BS 7991 (2001).
• [6] Annual Book of ASTM Standards, ASTM D3433 (1990).
• [7] H.K. Choi, M.S. thesis, Kongju University, Cheonan, Cheonan-Daero 1223-24, February.
• [8] M.S. Han, H.K. Choi, J.U. Cho, C.D. Cho, International Journal of Precision Engineering and Manufacturing 14, 1395 (2013).
• [9] R. Ahmad, J.H. Ha, Y.D. Hahn, I.H. Song, Journal of the Korean Powder Metallurgy Institute 19, 278 (2012).
• [10] S.H. Lee, D.M. Hong, Journal of the Korean Powder Metallurgy Institute 21, 50 (2014).
• [11] J.H. Choi, S.S. Yang, Y.D. Kim, J.Y. Yun, Journal of the Korean Powder Metallurgy Institute 20, 439 (2013).
• [12] T. Gao, J.U. Cho, Journal Korean Society. of Mechanical Technology 39, 971 (2015).

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)