Thông tin chung

  English

  Đề tài NC khoa học
  Bài báo, báo cáo khoa học
  Hướng dẫn Sau đại học
  Sách và giáo trình
  Các học phần và môn giảng dạy
  Giải thưởng khoa học, Phát minh, sáng chế
  Khen thưởng
  Thông tin khác

  Tài liệu tham khảo

  Hiệu chỉnh

 
Số người truy cập: 106,033,854

 FREE VIBRATION ANALYSIS OF FUNCTIONALLY GRADED BEAMS ON PASTERNAK FOUNDATION BASED ON A QUASI-3D THEORY AND FINITE ELEMENTS.
Tác giả hoặc Nhóm tác giả: Do Minh Duc and Bui Thien Lam
Nơi đăng: Tuyển tập công trình Hội nghị khoa học toàn quốc Cơ học vật rắn lần thứ XIV; Số: ISBN: 978-604-913-832-4;Từ->đến trang: 152-159;Năm: 2019
Lĩnh vực: Chưa xác định; Loại: Bài báo khoa học; Thể loại: Trong nước
TÓM TẮT
This report aims to analyze and investigate free vibration of functionally graded beams resting on two-parameter elastic foundation. Shear deformation and thickness stretching effects are taken into account by a quasi-3D theory. The material properties of the beams vary continuously in the thickness direction according to the power-law distribution. The governing equations of motion with four unknowns are established by using the principle of virtual work. The finite element method is employed to discretize the model and obtain the numerical approximation of the equilibrium equations. The reliability of the presented solution is verified by comparison with previously reported results in the literature. Various types of boundary condition, including axially mo- or immovable right end support, are considered. Natural frequencies are examined in details. Effects of different material property distribution, of span-to-height ratio and foundation stiffness parameters on the frequencies of the beams are also analyzed and discussed.
ABSTRACT
This report aims to analyze and investigate free vibration of functionally graded beams resting on two-parameter elastic foundation. Shear deformation and thickness stretching effects are taken into account by a quasi-3D theory. The material properties of the beams vary continuously in the thickness direction according to the power-law distribution. The governing equations of motion with four unknowns are established by using the principle of virtual work. The finite element method is employed to discretize the model and obtain the numerical approximation of the equilibrium equations. The reliability of the presented solution is verified by comparison with previously reported results in the literature. Various types of boundary condition, including axially mo- or immovable right end support, are considered. Natural frequencies are examined in details. Effects of different material property distribution, of span-to-height ratio and foundation stiffness parameters on the frequencies of the beams are also analyzed and discussed.
© Đại học Đà Nẵng
 
 
Địa chỉ: 41 Lê Duẩn Thành phố Đà Nẵng
Điện thoại: (84) 0236 3822 041 ; Email: dhdn@ac.udn.vn