Biphasic behavior of energy in a stepped chain

The impact energy decay in a step-up chain containing two sections is numerically studied.There is a marked biphasic behavior of energy decay in the first section.Two sections close to the interface are in compression state.The degree of compression of the first section first decreases and becomes w...

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Published inChinese physics B Vol. 25; no. 6; pp. 279 - 282
Main Author 王平建 何爱香 林忠海 魏广芬 刘燕丽
Format Journal Article
LanguageEnglish
Published 01.06.2016
Subjects
Chains
Compressing
Decay
Mass ratios
Mathematical analysis
Particle mass
Stepped
Transport
压缩状态
数值模拟
特征时间
相行为
能量衰减
脉冲结构
链
阶梯
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ISSN1674-1056
2058-3834
1741-4199
DOI10.1088/1674-1056/25/6/064501

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Summary:The impact energy decay in a step-up chain containing two sections is numerically studied.There is a marked biphasic behavior of energy decay in the first section.Two sections close to the interface are in compression state.The degree of compression of the first section first decreases and becomes weakest at ＂crossing＂ time of biphasic behavior of energy,then increases.The further calculations provide the dependence of the character time on mass ratio（m1/m2）,where m1 and m2are the particle mass in the first and second section respectively.The bigger the α（α = [（？ m1-m2）/（？ m1＋ m2）]2 with？ = 1.345）,the bigger the energy ratio is.The multipulse structure restricts the transport of energy.
Bibliography:The impact energy decay in a step-up chain containing two sections is numerically studied.There is a marked biphasic behavior of energy decay in the first section.Two sections close to the interface are in compression state.The degree of compression of the first section first decreases and becomes weakest at ＂crossing＂ time of biphasic behavior of energy,then increases.The further calculations provide the dependence of the character time on mass ratio（m1/m2）,where m1 and m2are the particle mass in the first and second section respectively.The bigger the α（α = [（？ m1-m2）/（？ m1＋ m2）]2 with？ = 1.345）,the bigger the energy ratio is.The multipulse structure restricts the transport of energy.
granular chain;solitary;biphasic behavior
Ping-Jian Wang,Ai-Xiang He,Zhong-Hai Lin,Guang-Fen Wei,Yan-Li Liu
11-5639/O4
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/25/6/064501