Meshless Local Petrov-galerkin Method for Elasto-static Analysis of Thick-walledIsotropic Laminated Cylinders
محل انتشار: ماهنامه بین المللی مهندسی، دوره: 27، شماره: 11
سال انتشار: 1393
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 666
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شناسه ملی سند علمی:
JR_IJE-27-11_011
تاریخ نمایه سازی: 12 آبان 1393
چکیده مقاله:
In this paper, one of the simplest and most regular members of the family of the Meshless LocalPetrov-Galerkin (MLPG) methods; namely MLPG5, is applied to analyze the thick-walled isotropiclaminated cylinders under elasto-static pressure. A novel simple technique is proposed to eliminate avery important difficulty of the meshless methods to deal with material discontinuities regarding to thehigh continuity of their shape functions. The Moving Least Squares (MLS) approximation is used forconstructing the trial functions, and a simple Heaviside step function is chosen for the test function.The direct interpolation method is employed to impose the essential boundary conditions. Acceptableagreements with the analytical solutions and finite element method results are obtained specially at thematerial discontinuity boundaries, which suggest its application in other classes of problems.
کلیدواژه ها:
Meshless Local Petrov-Galerkin (MLPG)Moving Least Squares (MLS)Material DiscontinuityThick-Walled Laminated Cylinders
نویسندگان
m.j Mahmoodabadi
Department of Mechanical Engineering, Sirjan University of Technology, Sirjan, Iran.
m.m Sarfarazi
Department of Mechanical Engineering, University of Guilan, Rasht, Iran
a.b Bagherib
Department of Mechanical Engineering, University of Guilan, Rasht, Iran.
g.h Baradaran
Department of Mechanical Engineering, Shahid Bahonar University, Kerman, Iran