ANALYSES OF THE DYNAMIC RESPONSES OF THE THIN-WALLED SHELL UNDER EXTERNAL IMPACT

Zhang Yi; Chen Li; Li Jie; Li Yingchun

doi:10.13204/j.gyjz201004011

Volume 40 Issue 4

Dec. 2014

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Zhang Yi, Chen Li, Li Jie, Li Yingchun. ANALYSES OF THE DYNAMIC RESPONSES OF THE THIN-WALLED SHELL UNDER EXTERNAL IMPACT[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(4): 46-50,83. doi: 10.13204/j.gyjz201004011

Citation:

Zhang Yi, Chen Li, Li Jie, Li Yingchun. ANALYSES OF THE DYNAMIC RESPONSES OF THE THIN-WALLED SHELL UNDER EXTERNAL IMPACT[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(4): 46-50,83. doi: 10.13204/j.gyjz201004011

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ANALYSES OF THE DYNAMIC RESPONSES OF THE THIN-WALLED SHELL UNDER EXTERNAL IMPACT

doi: 10.13204/j.gyjz201004011

1.
1. Engineering College of Engineering Corps,PLA University of Science and Technology,Nanjing 210007,China;
2.
2. The 4th Engineering Design and Research Academy,Ceneral Staff Headquarters,Beijing 100850,China

Received Date: 2009-07-30
Publish Date: 2010-04-20

Abstract

Abstract

With the development of the modern industry,abundant new type and high strength thin-walled shell structures were applied in most fields of military and civilized industry,therefore,it is necessary to enrich and perfect the theory for the calculation of the dynamic responses of the thin-walled shell under impact load. While the existing investigations on thin-walled shell are limited to staic situation based on numerical and approximate analytical methods,less researches were carried out on the dynamic responses of thin-walled shell under impact load. It is indicated that under the local action of the external impact,the radial oscillation of the thin-walled shell is nonperiodically,which agrees with its assumed frequency and periodicity. The stress state was also attenuated nonperiodically,which can be ordered by its extremes. The dynamic failure of the structure can be confirmed by two steps: Firstly, the strength properties of the structure were changed when the tension-compression plane wave propagated along the transverse direction. Secondly,the final failure of the structure occurred under the action of the flexure stresses.
- blast load,
- tin sphere shell,
- dynamic response

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References(13)

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