水下爆炸冲击波在含吸收层结构中的传播规律的数值模拟

李顺波; 东兆星; 齐燕军; 孙舒

doi:10.11858/gywlxb.2009.05.007

水下爆炸冲击波在含吸收层结构中的传播规律的数值模拟

doi: 10.11858/gywlxb.2009.05.007

李顺波^1,2,
东兆星^1,2,,
齐燕军^1,2,
孙舒^1,2,

1.
中国矿业大学深部岩土力学与地下工程国家重点实验室，江苏徐州 221008；
2.
中国矿业大学建筑工程学院，江苏徐州 221116

详细信息

通讯作者:
东兆星

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出版历程
- 收稿日期: 2009-01-05
- 修回日期: 2009-02-22
- 发布日期: 2009-10-15

Numerical Simulation on Propagation of Underwater Blast Shock Wave in Absorber Structure

LI Shun-Bo^1,2,
DONG Zhao-Xing^{1,2
,},
QI Yan-Jun^1,2,
SUN Shu^1,2,

1.
State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining & Technology, Xuzhou 221008, China;
2.
School of Architecture and Civil Engineering, China University of Mining & Technology, Xuzhou 221116, China

More Information

Corresponding author: DONG Zhao-Xing

摘要

摘要: 利用ANSYS/LS-DYNA软件，对水下爆炸冲击波在含有吸收层的多层结构中的传播规律进行了数值模拟。结果表明：冲击波在吸收层中的衰减是由泡沫材料自身的本构引起的；在含泡沫材料吸收层的结构中峰值压力仅为不含吸收层的14%，冲击波传播波形发生改变；在含有泡沫混凝土的多层结构中应力波峰值的下降幅度比含泡沫铝的大，但冲击波传播波形的变化不是很明显；泡沫混凝土中的总能量大于泡沫铝中的总能量，因此泡沫混凝土作为防护吸收层要优于泡沫铝。
- 冲击波 /
- 吸收层 /
- 数值模拟 /
- 泡沫混凝土 /
- 泡沫铝
Abstract: The underwater blast shock wave in absorber structure was numerically simulated by ANSYS/LS-DYNA. The results showed that the shock waves decay in the absorption foam layer due to the effect of the constitutive of the foam material, and the peak pressure of the stress wave in the multi-layer structure containing foam concrete has a greater decline than that with foam aluminum, but this has little impact on shock wave transmission. The shock peak pressure in the protective structure with absorbed layer is only 14% of that without an absorbed layer. Further analysis showed that the total energy of foam concrete is higher than that of foam aluminum, indicating foam concrete is superior to foamed aluminum as the absorbed layer in protective structure.
- shock wave /
- absorbed layer /
- numerical simulation /
- foam concrete /
- foam aluminium

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