Design and Analysis of a New Multi-Part Composite Frangible Cover-Reference-Cited by-同舟云学术

Design and Analysis of a New Multi-Part Composite Frangible Cover

Published:2023-08-04 Issue:15 Volume:15 Page:3307
ISSN:2073-4360
Container-title:Polymers
language:en
Short-container-title:Polymers

Author:

Qian Yuan¹²,Li Wenlong³,Wang Xiaopei²⁴,Cai Deng’an²^ORCID

Affiliation:

1. Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210034, China

2. State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

3. Chinese Flight Test Establishment, Xi’an 710089, China

4. Nanjing Research Institute on Simulation Technique, Nanjing 210016, China

Abstract

In this paper, a new multi-part composite frangible cover (MCFC) was designed and fabricated. The frangible cover, manufactured with a traditional manual lay-up method, is designed to conduct a simulated missile launch test using a specially developed test device. A weak zone structure of the composite multi-part frangible cover was designed, and the separation process of the cover was studied by numerical simulation. Based on the strength envelope of the weak zone and the equal-strength design principle, a design method for the weak zone structure of the composite multi-part frangible cover was proposed. A finite element model of the composite multi-part frangible cover was established, and the separation process was numerically simulated and analyzed. Afterward, the verification experiments were carried out. Close agreements between the numerical and experimental results are observed.

Funder

National Key Basic Research and Development Program

Priority Academic Program Development of Jiangsu Higher Education Institutions

Publisher

MDPI AG

Subject

Polymers and Plastics,General Chemistry

Link

https://www.mdpi.com/2073-4360/15/15/3307/pdf

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