首页 | 本学科首页   官方微博 | 高级检索  
     


Effects of strain rate and temperature on the tension behavior of polycarbonate
Affiliation:1. Université Lille 1 Sciences et Technologies, Laboratoire de Mécanique de Lille (LML), UMR CNRS 8107, F-59650 Villeneuve d’Ascq, France;2. Université des Sciences et de la Technologie d’Oran, Laboratoire de Carburant Gazeux et Environnement (LCGE), BP-1505 El-M’naouar, Algeria;3. Université Lille 1 Sciences et Technologies, Unité Matériaux Et Transformations (UMET), UMR CNRS 8207, F-59650 Villeneuve d’Ascq, France;4. Universidad Rafael Landívar, Campus de Quetzaltenango, 14 Avenida 0-43 zona 3, 09000, Quetzaltenango, Guatemala;1. State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou, 510640, Guangdong, PR China;2. Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing, School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, 510641, PR China;1. Laboratoire de Mécanique et d’Acoustique, CNRS UPR 7051, 31 chemin J. Aiguier, 13402 Marseille cedex 20, France;2. MINES ParisTech, CEMEF-Centre de Mise en Forme des Matériaux, CNRS UMR 7635, BP 207, 06904 Sophia Antipolis Cedex, France;3. Solvay R&I, 85 rue des Frères Perret, BP 62, 69192 Saint Fons Cedex, France;1. State Key Laboratory of Material Processing and Die & Mold Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China;2. School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, China
Abstract:Tension stress–strain responses of polycarbonate are presented for strain rates of 1 × 10?3 s?1–1700 s?1 and temperatures ranging from ?60 to 20 °C. The high rate tension tests are performed using a split Hopkinson tension bar apparatus. The influence of strain rate and temperature on the tension behavior of polycarbonate is investigated. Experimental results indicate that the tension behavior of polycarbonate exhibits nonlinear characteristics and rate-temperature sensitivity. The values of yield strength and strain at yield increase with the increase of strain rate and decrease with increasing temperature. A viscoelastic constitutive model consisting of a nonlinear spring and a nonlinear Maxwell element is proposed to characterize the rate and temperature dependent deformation behavior of polycarbonate prior to yielding.
Keywords:
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号