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Biphasic behavior of energy in a stepped chain

Biphasic behavior of energy in a stepped chain
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摘要 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. 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.
出处 《Chinese Physics B》 SCIE EI CAS CSCD 2016年第6期279-282,共4页 中国物理B(英文版)
基金 Project supported by the National Natural Science Foundation of China(Grant Nos.61174007 and 61307041) the Natural Science Foundation of Shandong Province,China(Grant No.ZR2013AL014)
关键词 granular chain SOLITARY biphasic behavior granular chain solitary biphasic behavior
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