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Analysis on autofrettage of filament-wound composite cylinder(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2014年03期
Page:
57-62
Research Field:
研究与设计
Publishing date:

Info

Title:
Analysis on autofrettage of filament-wound composite cylinder
Author(s):
CHEN Jun-jun;  TIAN Gui;  SHEN Jun;  HUANG Li-na
Shanghai Institute of Space Propulsion, Shanghai 201112, China
Keywords:
composite cylinder;  autofrettage analysis;  finite element analytical model
PACS:
V434+.23-34
DOI:
-
Abstract:
As the key procedure of filament-wound composite cylinder processing, the auto- frettage pressure directly affects the bearing capacity and the fatigue life of the cylinder. Based on laminated plate theory and isotropic material elastic-plastic theory, a finite element analysis model of isotropic metal and anisotropic composite laminated plate is set up, and autofrettage analysis of 53 L filament-wound composite cylinder with aluminum liner in aerospace application is carried out by means of finite element analysis software ANSYS. The influence of autofrettage pressure on stress states of aluminum liner and filament wound layer was studied and optimal autofrettage pressure was established. The result indicates that autofrettage technology can decrease the maximum tensile stress of aluminum liner significantly in working conditions, enlarge elastic working range and improve the fatigue resistance of the composite cylinder.

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