NumericalstudyonimpactpropertiesofAlfoamunderexplosiveloading

NiXiao-jun; MaHong-hao; ShenZhao-wu; LiLe

doi:10.11883/1001-1455(2013)02-0120-06

Volume 33 Issue 2

Apr. 2014

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NiXiao-jun, MaHong-hao, ShenZhao-wu, LiLe. NumericalstudyonimpactpropertiesofAlfoamunderexplosiveloading[J]. Explosion And Shock Waves, 2013, 33(2): 120-125. doi: 10.11883/1001-1455(2013)02-0120-06

Citation:

NiXiao-jun, MaHong-hao, ShenZhao-wu, LiLe. NumericalstudyonimpactpropertiesofAlfoamunderexplosiveloading[J]. Explosion And Shock Waves, 2013, 33(2): 120-125. doi: 10.11883/1001-1455(2013)02-0120-06

NiXiao-jun, MaHong-hao, ShenZhao-wu, LiLe. NumericalstudyonimpactpropertiesofAlfoamunderexplosiveloading[J]. Explosion And Shock Waves, 2013, 33(2): 120-125. doi: 10.11883/1001-1455(2013)02-0120-06

Citation:

NiXiao-jun, MaHong-hao, ShenZhao-wu, LiLe. NumericalstudyonimpactpropertiesofAlfoamunderexplosiveloading[J]. Explosion And Shock Waves, 2013, 33(2): 120-125. doi: 10.11883/1001-1455(2013)02-0120-06

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NumericalstudyonimpactpropertiesofAlfoamunderexplosiveloading

doi: 10.11883/1001-1455(2013)02-0120-06

1.
Departmentof ModernMechanics,UniversityofScienceandTechnologyofChina,

Funds:

NationalNaturalScienceFoundationofChina(51134012,51174183)

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Corresponding author: NiXiao-jun
Publish Date: 2013-03-25

Abstract

Abstract

Basedonthehydrodynamic-elastoplasticmodel,theequationswereestablishedtocharacterizetheimpactpropertiesoftheAlfoamsunderexplosiveloading, whichweretransformedintodiscreteLagrangedifferenceformsinuniformgrid. TheshockresponsesoftheAlfoamsinwaterandair werenumericallycalculatedbytheself-developedone-dimensionalcode,respectively.Thenumerical resultsareinagreementwiththetheoreticalsolutionsandtheexperimentalones.Underthesameexplosiveloading, thelowerthedensityoftheAlfoam,thelowerthepeakpressureinit.Andundera contactexplosiveloading,thepropertiesofthematerialssurroundingtheAlfoamcanmarkedlyaffect thepressureonitsouterside.WhenairisoutsidetheAlfoam,thepressureintheAlfoamadjacent toairtakesonadownwardtrend.WhenwaterisoutsidetheAlfoam,thecorrespondingpressure takesonanupwardtrend.
- mechanicsofexplosion,
- peakpressure,
- finitedifference,
- aluminumfoam