Discrete model in the analysis of residual stresses in unidirectional winding cylinders made of fiber-reinforced plastic

Autor: Turusov Robert Alekseevich, Hamed Memaryanfard
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Vestnik MGSU, Iss 1, Pp 27-35 (2015)
ISSN: 1997-0935
Popis: Today works in cosmos and at great sea depths are becoming very current. In order to execute these works tanks with great mass perfection are needed, which represents the relation of the product of pressure and inner volume to its mass. Usually such tanks are usually produced as a cocoon by winding methods, which can be automated. The simplest model of a cocoon is a cylinder with hemispheric blinds at the edges. The radial stresses arise in thick walled composite cylinders due to anisotropic thermal shrinkage during cooling process after curing. It also can lead to formation of radial cracks. The results of the analyses when a material is simplified to a homogenous orthotropic material show a very small residual radial stress value. In this paper we have used discrete model to evaluate residual radial stresses in thick-walled unidirectional filament wound cylinder and the results were compared to the results of homogenous orthotropic model.
Databáze: OpenAIRE