半球阻波结构体底部的约束形式

半球阻波结构体底部的约束形式

李晓杰, 秦小勇, 闫鸿浩

文章导航 > 爆炸与冲击 > 2010 > 30(1): 7-11

李晓杰, 秦小勇, 闫鸿浩. 半球阻波结构体底部的约束形式[J]. 爆炸与冲击, 2010, 30(1): 7-11. doi: 10.11883/1001-1455(2010)01-0007-05

引用本文:

李晓杰, 秦小勇, 闫鸿浩. 半球阻波结构体底部的约束形式[J]. 爆炸与冲击, 2010, 30(1): 7-11. doi: 10.11883/1001-1455(2010)01-0007-05

LI Xiao-jie, QIN Xiao-yong, YAN Hong-hao. Baseconstraintformsofhemisphericalshock-wavestrapstructures[J]. Explosion And Shock Waves, 2010, 30(1): 7-11. doi: 10.11883/1001-1455(2010)01-0007-05

Citation:

LI Xiao-jie, QIN Xiao-yong, YAN Hong-hao. Baseconstraintformsofhemisphericalshock-wavestrapstructures[J]. Explosion And Shock Waves, 2010, 30(1): 7-11. doi: 10.11883/1001-1455(2010)01-0007-05

李晓杰, 秦小勇, 闫鸿浩. 半球阻波结构体底部的约束形式[J]. 爆炸与冲击, 2010, 30(1): 7-11. doi: 10.11883/1001-1455(2010)01-0007-05

引用本文:

李晓杰, 秦小勇, 闫鸿浩. 半球阻波结构体底部的约束形式[J]. 爆炸与冲击, 2010, 30(1): 7-11. doi: 10.11883/1001-1455(2010)01-0007-05

LI Xiao-jie, QIN Xiao-yong, YAN Hong-hao. Baseconstraintformsofhemisphericalshock-wavestrapstructures[J]. Explosion And Shock Waves, 2010, 30(1): 7-11. doi: 10.11883/1001-1455(2010)01-0007-05

Citation:

LI Xiao-jie, QIN Xiao-yong, YAN Hong-hao. Baseconstraintformsofhemisphericalshock-wavestrapstructures[J]. Explosion And Shock Waves, 2010, 30(1): 7-11. doi: 10.11883/1001-1455(2010)01-0007-05

半球阻波结构体底部的约束形式

doi: 10.11883/1001-1455(2010)01-0007-05

1.
大连理工大学工业装备结构分析国家重点实验室,辽宁大连116023;
2.
大连理工大学土木工程学院岩土工程研究所,辽宁大连116023

通讯作者:
李晓杰

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出版历程
- 刊出日期: 2010-01-25

Baseconstraintformsofhemisphericalshock-wavestrapstructures

1.
StateKeyLaboratoryofStructuralAnalysisforIndustrialEquipment,
2.
DalianUniversityofTechnology,Dalian116023,Liaoning,China;

More Information

Corresponding author: LI Xiao-jie

摘要: 1.大连理工大学工业装备结构分析国家重点实验室,辽宁大连116023; 2.大连理工大学土木工程学院岩土工程研究所,辽宁大连116023
- 爆炸力学 /
- 应力 /
- 约束 /
- 爆炸容器 /
- 冲击波
Abstract: Theequivalentstressesofhemisphericalshock-wavestrapstructurewerecalculatedbythe finiteelementprogramLS-DYNAfordifferentconstraintformsandcomparedwiththeexperimental results.Theresultsshowthatthestressconcentrationhappensontheshellneartheentranceandexhaustportandthelocalstressesarefarhigherthanthose fotherparts.Inadditiontothesiteof stressconcentration,themaximumstressisatthethree-fourthoftheheightforthescalespherical shellmodel.Theoverallstressleveldecreasessignificantlyforthesphericalshellwiththefreebottom. Usingthefreebasetoplacethesphericalshellcanfurtherenhanceitscapacityagainstspherical implosion.Contrastingwiththeexperiments,themaximumstresslocationisinlinewiththenumericalresultsafterreinforcingpartsofstressconcentration. Byusingthefreebasetoplacethespherical shellonthegroundinthedesign,itcannotonlyimprovetheanti-explosioncapacityofspherical shells,butalsosavethefoundationtreatment,substantiallyreducesthecostofhemisphericalshock wavestrapstructures.
- mechanicsofexplosion|stress /
- constraint|explosivevessel|shockwaves /

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