图书来源:二元合金相图及中间相晶体结构 二元合金相图及中间相晶体结构
作 者:唐仁政 田荣璋
出版时间:2009-05
定 价:320元
图书ISBN:978-7-81105-831-4
出版单位:中南大学出版社
Min Zheng and Pei-jun Wei School of Applied Science,University of Science and Technology Beijing,Beijing 100083,China
摘 要:Band gaps of elastic waves in 1-D phononic crystals with imperfect interfaces were studied.By using the transfer matrix method(TMM) and the Bloch wave theory in the periodic structure,the dispersion equation was derived for the periodically laminated binary system with imperfect interfaces(the traction vector jumps or the displacement vector jumps).The dispersion equation was solved numerically and wave band gaps were obtained in the Brillouin zone.Band gaps in the case of imperfect interfaces were compared with that in the case of perfect interfaces.The influence of imperfect interfaces on wave band gaps and some interesting phenomena were discussed.
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