Computer Simulation for the Orthogonal Milling Process of Asphalt Concrete

Abstract:

So as to design the pavement planer, it is necessary to study the milling performance of asphalt concrete. In this work, a coupled thermo-mechanical plane-strain large deformation orthogonal cutting finite element model is presented to simulate the asphalt concrete milling process and predict the stress and temperature field on the cutter. Chip separation is considered by applying shear fracture failure criteria and element deletion and adaptive mesh technique. Two contact pairs are defined. Contact pair 1 defines the milling path, and contact pair 2 defines to prevent the formed chip enter into the workpiece. The Johnson-Cook’s constitutive relation is adopted for the asphalt material. The cutter surface friction and heat conduction are considered. The computation indicates that the maximal cutting force will change from 3.967KN to 10.494KN if the cutting speed is between 1000mm/s and 2000mm/s for the pavement planer of BG2000.

• Periodical: Advanced Materials Research (Volumes 139-141)
• Pages: 1014-1017
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.139-141.1014
• Online since: October 2010
• Authors: Li Qun Zhou, Yu Ping Li, Hong Liu, Guo Xing
• Keywords: Asphalt Concrete, Cutting, Milling, Pavement Planer, Simulation

References

[1] Liqun Zhou: Construction Machinery Technology and Management, Vol. 21(2008), pp.96-99.

[2] C. Shet and X. Deng: Int J Mach Tool Manu, Vol. 43(2003), pp.573-587.

[3] W.J. Zong, T. Sun, D. Li, K. Cheng and Y.C. Liang: J Mater Process Tech, Vol. 180(2006), pp.271-278.

[4] Jinyue Tian and Huarong Xiang: Journal of Jiangsu University, Vol. 25(2004), No. 5, pp.380-384.

[5] Manhua Qin, Helai Yang and Man Xue: Journal of Tianjin Institute of Urban Construction, Vol. 6(2000), No. 2, pp.122-125.

[6] M. Movahhedy, M.S. Gadala and Y. Altintas: J Mater Process Tech, Vol. 103(2000), pp.267-275.

[7] J.M. Huang and J.T. Black: J Manu Sci Eng, Vol. 118(1996), pp.545-554.