Design analysis of the reinforced composite shell-Reference-Cited by-同舟云学术

Design analysis of the reinforced composite shell

Published:2023-09 Issue:9 (141) Volume: Page:
ISSN:2308-6033
Container-title:Engineering Journal: Science and Innovation
language:
Short-container-title:EJSI

Author:

Egorov A.V.¹,Egorov V.N.²

Affiliation:

1. Bauman Moscow State Technical University

2. Moscow Aviation Institute

Abstract

The paper formulates the design calculation problem of a reinforced composite shell as a related problem of two shells — the layered and the lattice (ribbed). The layered shell is formed by a single double-helical monolayer; the lattice shell is made up of longitudinal and transverse ribs. The reinforced shell continuum model is based on a stiffness matrix equal to the sum of stiffness matrices of the quasi-homogeneous layered and ribbed shells, which are rigidly connected to each other and are deformed without slipping. External axial load between the two shells is distributed under the static conditions. The shells’ thickness is determined from the strength condition. The layered skin winding angle is found through iterations in achieving the goal function, for example, the minimum mass of a structure. The ribs transverse dimensions are found from the strength condition with preliminary setting of one of the ribs’ parameters. The obtained relationships make it possible to determine the stress-strain state of reinforced composite cylindrical shells.

Publisher

Bauman Moscow State Technical University

Subject

General Medicine

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