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  EFFECTS OF COMPONENTS COMPOSING NONLINEAR NORMAL STRAIN ON BUCKLING OF FUNCTIONALLY GRADED BEAMS BASED ON A QUASI-3D THEORY
Tác giả hoặc Nhóm tác giả: Do Minh Duc, Le Khanh Toan and Huynh Vinh
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: 160-167;Năm: 2019
Lĩnh vực: Chưa xác định; Loại: Bài báo khoa học; Thể loại: Trong nước
TÓM TẮT
This report aims to investigate influences of components composing nonlinear normal strain on buckling of functionally graded beams based on a quasi-3D theory. Three components, the first one is caused by the axial displacement, the second one is caused by the the conventional transverse displacement, and the last one is caused by the thickness stretching effect, are deeply examined in analysis. The material properties change smoothly according to power-law distribution. The governing equations are derived from the principle of virtual work. The finite element method-based solution is employed to obtain the numerical approximation. Effects of these components in cooperation with different boundary conditions, material property distributions and span to height ratio on the buckling of the beams are also analyzed and discussed.
ABSTRACT
This report aims to investigate influences of components composing nonlinear normal strain on buckling of functionally graded beams based on a quasi-3D theory. Three components, the first one is caused by the axial displacement, the second one is caused by the the conventional transverse displacement, and the last one is caused by the thickness stretching effect, are deeply examined in analysis. The material properties change smoothly according to power-law distribution. The governing equations are derived from the principle of virtual work. The finite element method-based solution is employed to obtain the numerical approximation. Effects of these components in cooperation with different boundary conditions, material property distributions and span to height ratio on the buckling of the beams are also analyzed and discussed.
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