TAILIEUCHUNG - Dynamic behaviour of an inclined FG-CNTRC sandwich beam under a moving mass

This paper studies dynamic behavior of an inclined sandwich beam with a homogeneous core and functionally graded carbon nanotube reinforced composite (FG-CNTRC) face sheets under a moving mass. The effective properties of the face sheets are estimated by the extended rule of mixture. | Vietnam Journal of Science and Technology 62 2 2024 359-373 doi 2525-2518 17174 Dynamic behaviour of an inclined FG-CNTRC sandwich beam under a moving mass Thi Thom Tran1 Ismail Esen2 Dinh Kien Nguyen1 3 1 Institute of Mechanics Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Cau Giay Ha Noi Viet Nam 2 Department of Mechanical Engineering Karabuk University Makina Mühendisliği Bölümü Karabük Turkey 3 Graduate University of Science and Technology Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Cau Giay Ha Noi Viet Nam Email thomtt0101@ Received 27 May 2022 Accepted for publication 1 November 2022 Abstract. This paper studies dynamic behavior of an inclined sandwich beam with a homogeneous core and functionally graded carbon nanotube reinforced composite FG-CNTRC face sheets under a moving mass. The effective properties of the face sheets are estimated by the extended rule of mixture. Three types of carbon nanotube distribution namely uniform distribution UD functionally graded FG- and V FG-V distributions are considered. Based on the first-order shear deformation theory a finite element formulation is formulated by using hierarchical functions to interpolate the displacements and rotation. Using the derived formulation dynamic response of the sandwich beam is computed with the aid of the Newmark method. The obtained result reveals that the inclined angle has a significant influence on the response of the beam and the dynamic magnification factor decreases for the beam associated with a larger inclined angle. The effects of various parameter including the nanotube volume fraction the type of carbon nanotube distribution the layer thickness ratio and the moving mass velocity on dynamic behavior of the sandwich beam are examined and highlighted. Keywords Inclined sandwich carbon nanotube reinforcement first-order shear deformation moving mass dynamic analysis. Classification numbers . 1. INTRODUCTION Carbon

• Vật lý
• Inclined sandwich
• Carbon nanotube reinforcement
• First order shear deformation
• Moving mass
• Dynamic analysis
• Carbon nanotube reinforced composite
• Nonlinear dynamic response
• Annular spherical shell
• Sandwich structures
• Functionally graded