Title :
Characterization of Creep Properties of Zeolite Molecular Sieves Using Nanoindentation Test
Author :
Chen, Tong ; Ma, Yong ; Niu, Xiaoyan ; Shu, Xuefeng ; Zhang, Jianwen
Author_Institution :
Inst. of Appl. Mech., Taiyuan Univ. of Technol., Taiyuan, China
Abstract :
The creep behavior of Zeolite molecular sieves has been investigated in this research by using a nanoindentation test. In the holding time, creep curves were obtained. The results show that the penetration depth during constant load phase is time-dependent. After analysis, creep stress exponents of Zeolite molecular sieves were determined from In epsivdot vs .InH curves. Given a secondary creep material model, the indention processes of Zeolite molecular sieves were simulated with the ANSYS finite element code by force loading. The simulative results were consistent with experimental creep curves through modulating the constant C of creep constitutive equation. Therefore, the creep constitutive equations of Zeolite molecular sieves were determined.
Keywords :
creep; creep testing; finite element analysis; nanoindentation; zeolites; ANSYS finite element code; creep curves; creep material model; creep properties; creep stress; indention processes; nanoindentation test; zeolite molecular sieves; Automatic testing; Creep; Equations; Finite element methods; Materials testing; Mechanical factors; Mechanical variables measurement; Molecular sieves; Stress; Temperature; Zeolite molecular sieves; nanoindentation; secondary creep; stress exponent;
Conference_Titel :
Measuring Technology and Mechatronics Automation, 2009. ICMTMA '09. International Conference on
Conference_Location :
Zhangjiajie, Hunan
Print_ISBN :
978-0-7695-3583-8
DOI :
10.1109/ICMTMA.2009.353
