Damageofdifferentreinforcedstructures

subjectedtounderwatercontactexplosion

LAI Ming; FENG Shun-shan; HUANG Guang-yan; BIAN Jiang-nan

doi:10.11883/1001-1455(2012)06-0599-05

Volume 32 Issue 6

Apr. 2014

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LAI Ming, FENG Shun-shan, HUANG Guang-yan, BIAN Jiang-nan. Damageofdifferentreinforcedstructuressubjectedtounderwatercontactexplosion[J]. Explosion And Shock Waves, 2012, 32(6): 599-604. doi: 10.11883/1001-1455(2012)06-0599-05

Citation:

LAI Ming, FENG Shun-shan, HUANG Guang-yan, BIAN Jiang-nan. Damageofdifferentreinforcedstructures subjectedtounderwatercontactexplosion[J]. Explosion And Shock Waves, 2012, 32(6): 599-604. doi: 10.11883/1001-1455(2012)06-0599-05

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Damageofdifferentreinforcedstructures subjectedtounderwatercontactexplosion

doi: 10.11883/1001-1455(2012)06-0599-05

1.
(StateKeyLaboratoryofExplosionScienceandTechnology,

Publish Date: 2012-11-25

Abstract

Abstract

LS-DYNAwasusedtosimulatetheresponsesofdifferentreinforcedstructuressubjectedto underwatercontactexplosionbyconsideringdifferentreinforcementstrengthsandlocations.Strength anddistancefactorsweredefinedtodescribethestrengthandlocationsofstiffeners,respectively.Six modelswereproposedwithdifferentstrengthsofstiffenersandthreemodelsweredevelopedwithdifferentlocationsofstiffeners. Typicaldamageprocessesofthereinforcedstructureswereanalyzed. Thehorizontalandverticalcracklengthsofcrevassewerecomparedaswellascrevassearea.The effectsofthestrengthanddistancefactorswerefoundonthereinforcedstructuressubjectedtounderwatercontactexplosion. Theresultsshowthatitcanbeeffectivetorestraincrevasseareawhenthe strengthfactorrisesintheverticaldirectionanditisnotsignificantwhenthestrengthfactorrisesin thehorizontaldirection.Thedistancefactorisindirectproportiontocrevasseareaandthecrevasse shapesarerelatedtobothofthetwofactorsdefined.
- mechanicsofexplosion,
- damage,
- LS-DYNA,
- reinforcedstructure,
- crevasse