Factors Affecting the Compression and Energy Absorption Properties of Small-Sized Thin-Walled Metal Tubes

Xiaoqin Hao,Jia Yu,Weidong He,Yi Jiang

doi:10.1155/2020/6135925

Abstract

To solve the problem of the effective cushioning of fast-moving mechanical components in small ring-shaped spaces, the factors affecting the compression and energy absorption properties of small-sized hollow metal tubes were studied. Simulation models were constructed to analyse the influences of tube diameter, wall thickness, relative position, and number of stacked components on the compression and energy absorption properties. The correctness of the simulation method and its output were verified by experiments, which proved the effectiveness of compression and energy absorption properties of small-sized thin-walled metal tubes. The research provides support for the application of metal tube buffers in armament launch technology and engineering practice.

Highlights

With the development of engineering science and technology, the problem of buffer energy absorption caused by mechanical collision in industry has become more prominent
The analysis shows that the compression energy absorption effect of the thinwalled tube with an outer diameter of 5 mm is better than those of 6 mm and 4 mm
The metal tube with an outer diameter of 5 mm is selected for subsequent analysis

Summary

Introduction

With the development of engineering science and technology, the problem of buffer energy absorption caused by mechanical collision in industry has become more prominent. The problem of buffer energy absorption within a narrow space has arisen as an important topic of interest in the aerospace industry. The composite devices with good performance and a wide range of application include metal tube structures, aluminium honeycomb, foamed metal materials, and porous materials used to infill thin-walled structures. These buffer energy absorption devices are all based on the principle of irreversible deformation of materials and absorption of energy through plastic deformation

Results

Discussion

Conclusion