شماره ركورد كنفرانس :
3986
عنوان مقاله :
Buckling Behaviors of Variable Stiffness Composite Cylindrical Shell with Elliptical and Circular Cross Sections under External Hydrostatic Pressure
پديدآورندگان :
Nopour Hossein Department of Science and Marine Engineering, Malek Ashtar University of Technology , Kabiri Ataabadi Abdulreza a.kabiri.at@mut-es.ac.ir Department of Science and Marine Engineering, Malek Ashtar University of Technology , Shokrieh Mahmood M. Composites Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology
كليدواژه :
Cylindrical shell , external hydrostatic pressure , variable stiffness , circular cross section , elliptical cross section.
عنوان كنفرانس :
پنجمين كنفرانس بين المللي كامپوزيت: مشخصه سازي، ساخت و كاربردها
چكيده فارسي :
In this research, optimum buckling pressure of variable and constant stiffness composite cylindrical shells
with elliptical and circular cross sections was obtained. Although, bending moment and axial loads for composite
cylindrical shell with circular cross section and axial load for composite cylindrical shell with elliptical cross section
have been often considered, however the external hydrostatic pressure has been rarely investigated. In the present
study, axial variation of fiber orientation for both cylindrical shell with elliptical and circular cross sections and
circumferential variation of fiber orientation for cylindrical shell with elliptical cross section were considered. For the
optimization process, the generic algorithm program and Abaqus finite element software were used. Results show
enhancement of buckling pressure for the variable stiffness composite cylindrical shell with respect to that of the
constant stiffness composite cylindrical shell. Circumferential variation of fiber orientation for cylindrical shell with
elliptical cross section does not increase buckling pressure.
