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The dynamic characteristics of flat ribbon wound explosive container Factors Influencing

Author: ZhaoFuSong
Tutor: ZhaoZiLong；TianJinBang
School: Taiyuan University of Science and Technology
Course: Engineering Mechanics
Keywords: Flat ribbon wound explosive container Numerical Simulation Dynamic characteristics Strain rate effect Friction Axial dimensions Thickness ratio
CLC: TH49
Type: Master's thesis
Year: 2011
Downloads: 10
Quote: 1
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Abstract


Flat ribbon wound explosive container is a new structure explosion container , the main structure is staggered to a certain angle the thin inner cylinder and the outer wound strip , this discrete structure , flat ribbon wound explosive containment vessel in material processing, production costs , production efficiency has incomparable advantages of integral explosion container . Flat ribbon wound explosive container strip layer there is a gap , the gap is a natural pressure relief hole , friction and changes in the gap between the steel strip layer is able to generate good energy absorption in the explosive shock , this role is the overall explosive containment vessel does not have . In this paper, flat ribbon wound explosive containment vessel explosion loading experiments based wound explosive containers finite element analysis model has higher precision flat around with the dynamic characteristics of the container in the shape of the charge , investigate the strain rate effect , friction , axial dimensions around the band and the inner shell thickness ratio of around with the impact of the container antiknock characteristics . The research results show that , with the deformation of the container burst heart torus around the explosive shock mainly plastic deformation , the axial deformation is not obvious , the critical heart torus around with the container and seal the top of the head position of the center by the strong impact , housing and the head connection at the existence of the phenomenon of stress concentration ; shape of the charge be significant impact around with the dynamic characteristics of the container ; flat ribbon wound explosive containment vessel under strong shock will produce a significant strain rate effect , this effect will be with the shock effect of strengthening and strengthening ; friction role around with container antiknock performance enhancing effect is very significant ; appropriate to reduce the axial size of the container around with antiknock properties around with a container smaller ; through select appropriate materials and adjustment around the band and the thickness of the inner shell around with the container than can make has the overall explosive container unmatched antiknock effect .

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CLC: > Industrial Technology > Machinery and Instrument Industry > Gas compression and transportation machinery > Pressure vessel
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