Optimum creep lifetime of Polymethyl Methacrylate (PMMA) tube using rheological creep constitutive models based on experimental data

被引:32
作者
Adibeig, Mohammad Reza [1 ]
Hassanifard, Soran [1 ,2 ]
Vakili-Tahami, Farid [1 ]
机构
[1] Univ Tabriz, Dept Mech Engn, Tabriz, Iran
[2] Ryerson Univ, Dept Mech & Ind Engn, Toronto, ON, Canada
关键词
Creep; Constitutive; Rheological; Tube; Optimum; BEHAVIOR;
D O I
10.1016/j.polymertesting.2019.01.016
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
In this paper, the creep behavior of Polymethyl Methacrylate (PMMA) is investigated both experimentally and numerically at different temperatures (30, 40 and 50 degrees C) and stress levels. The experimental results show that PMMA has a nonlinear viscoelastic behavior. Hence, to model the creep behavior of PMMA, three types of constitutive models have been proposed: a) the generalized time hardening model, b) Burgers model, c) modified Burgers model. It was found that the generalized time hardening model, which has extensive applications in commercial softwares, predicts the creep behavior of PMMA at higher stress levels but it deviates from the experimental results at lower stress levels. Although, Burgers model predicts the creep behavior of PMMA, to improve the accuracy of the model a modified version of Burgers model has been proposed, which demonstrates very good consistency with the experimental data over the whole range of applied stresses and temperatures. Finally, the results are used to estimate the optimum creep lifetime of a rotating pressurized tube. A set of diagrams, which can be used in industry, have been produced based on each model.
引用
收藏
页码:107 / 116
页数:10
相关论文
共 28 条
[1]   Experimental investigation of tensile strength of friction stir welded butt joints on PMMA [J].
Adibeig, Mohammad Reza ;
Hassanifard, Soran ;
Vakili-Tahami, Farid ;
Hattel, Jesper Henri .
MATERIALS TODAY COMMUNICATIONS, 2018, 17 :238-245
[2]  
[Anonymous], 2017, Abaqus Analysis User's Manual Version 6.14
[3]  
[Anonymous], 2003, ASTM INT, V08, P46, DOI DOI 10.1520/D0638-14.1
[4]   PREDICTIVE MODELS FOR THE CREEP-BEHAVIOR OF PMMA [J].
ARNOLD, JC ;
WHITE, VE .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1995, 197 (02) :251-260
[5]  
Boyle JT, 1983, Stress Analysis for Creep
[6]  
Bucknall C.B., 1997, PRINCIPLES POLYM ENG
[7]   RELATING CREEP AND CREEP-RUPTURE IN PMMA USING A REDUCED VARIABLE APPROACH [J].
CRISSMAN, JM ;
MCKENNA, GB .
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1987, 25 (08) :1667-1677
[8]   Friction stir spot welding of dissimilar polymethyl methacrylate and acrylonitrile butadiene styrene sheets [J].
Dashatan, Saeid Hoseinpour ;
Azdast, Taher ;
Ahmadi, Samrand Rash ;
Bagheri, Arvin .
MATERIALS & DESIGN, 2013, 45 :135-141
[9]   Modelling non-linear creep behaviour of an epoxy adhesive [J].
Dean, G. .
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES, 2007, 27 (08) :636-646
[10]  
Evans R. W., 1993, INTRO CREEP, P115