全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

多层介质对应力波传播特性影响分析

DOI: 10.11858/gywlxb.2005.01.011, PP. 59-65

Keywords: 应力波传播,数值计算,多层介质,泡沫材料

Full-Text   Cite this paper   Add to My Lib

Abstract:

通过在气炮上进行多层介质的低速冲击实验及相应的数值计算,分析了不同组成的多层介质对应力波传播特性的影响。结果表明:多层介质中的泡沫材料不仅能够改变应力波的幅值与作用时间,而且具有显著的吸能效果,引起应力波在传播过程中在各层介质中能量与动量分配的改变。通过对泡沫铝和泡沫混凝土两种软材料在多层介质中作用的比较表明,在低速冲击的实验条件下,含泡沫混凝土的多层介质具有较好的削波作用,含泡沫铝的多层介质具有较好的吸能性能。

References

[1]  Guruprasad S, Abhijit M. Layered Sacrificial Claddings under Blast Loading Part Ⅰ-Analytical Studies [J]. Int J Impact Eng, 2000, 24: 957-973.
[2]  Holmquist T J, Templeton D W, Bishnoi K D. Constitutive Modeling of Aluminum Nitride for Large Strain, High-Strain Rate, and High-Pressure Applications [J]. Int J Impact Eng, 2001, 25: 211-231.
[3]  Gupta Y M, Ding J L. Impact Load Spreading in Layered Materials and Structures: Concept and Quantitative Measure [J]. Int J Impact Eng, 2002, 27: 277-291.
[4]  Skvortsov V, Kepler J, Bozhevolnaya E. Energy Partition for Ballistic Penetration of Sandwich Panels [J]. Int J Impact Eng, 2003, 28: 697-716.
[5]  Yu J L, Wang X, Wei Z G, et al. Deformation and Failure Mechanism of Dynamically Loaded Sandwich Beams with Aluminum-Foam Core [J]. Int J Impact Eng, 2003, 28: 331-347.
[6]  Wada A, Kawasaki T, Minoda Y, et al. A Method to Measure Shearing Modulus of the Foamed Core for Sandwich Plates [J]. Composite Structures, 2003, 60: 385-390.
[7]  Li Q M, Meng H. Attenuation or Enhancement-A One-Dimensional Analysis on Shock Transmission in the Solid Phase of a Cellular Material [J]. Int J Impact Eng, 2002(27), 1049-1065.
[8]  Kearsleya E P, Wainwright P J. The Effect of Porosity on the Strength of Foamed Concrete [J]. Cement and Concrete Research, 2002, 32: 233-239.
[9]  Santosa S P, Wierzbicki T, Hanssen A H, et al. Experimental and Numerical Studies of Foam-Filled Sections [J]. Int J Impact Eng, 2000, 24: 509-534.
[10]  Pan Y, Hu S S, Wei Z G. Experimental Study on Dynamic Behavior of Foamed Aluminum [J]. Materials Science & Engineering, 2002, 20(3): 341-343. (in Chinese)
[11]  潘艺, 胡时胜, 魏志刚. 泡沫铝动态力学性能的实验研究 [J]. 材料科学与工程, 2002, 20(3): 341-343.
[12]  Deshpande V S, Fleck N A. High Strain Rate Compressive Behaviour of Aluminium Alloy Foams [J]. Int J Impact Eng, 2000, 24: 277-298.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133