|
|
Detection of Grouting Defects in Prestressed Bridge Duct |
SU Haitao, YANG Jing, ZHANG Sen |
Institute of Science and Technology of Yunnan Province Highway, Kunming 650051, China |
|
|
Abstract: This paper studies the vibration characteristics of the phononic crystal beam on elastic foundations, based on the Euler beam theory and the Winkler foundation model. The finite element method is used to obtain the band structures of phononic crystal Euler beams. The results reveal the influence of the foundation constraint on the bending vibration band gaps in the phononic crystal Euler beam. The computational results of the band structures of the phononic crystal Euler beam without foundation are compared with those on the elastic foundation. The significantly different band gaps of the model are shown.. The influences of different component ratioes of the phononic crystal Euler beam model are also studied, as well as the frequency ranges of the vibration band gaps.
|
Received: 09 August 2012
|
|
|
|
|
[1] |
ZHOU Zhenggan, SUN Guangkai, MA Baoquan, LI Yang. Application of New Developed Techniques for Ultrasonic Nondestructive Testing for Advanced Composite Materials[J]. journal1, 2014, 32(9): 15-20. |
[2] |
HUANG Zhiqiang;WANG Mingbo;WANG Weibin;KANG Yewei;LI Qin;ZHOU Yi. Defect Detection for the Bottom Plate of Oil Tank Based on Ultrasonic Lamb Waves[J]. , 2013, 31(16): 47-50. |
[3] |
YAN Feng;ZHANG Qingming;BAI Chunhua;CHEN Jian;WANG Zhongqi;LI Jianping. Testing and Analysis of Stress Wave in Elastic Zone Generated by Explosion in Soil[J]. , 2012, 30(3): 26-29. |
[4] |
LI Xibing;LIAO Jiubo;ZHAO Guoyan;ZHOU Zilong;ZOU Yang. Dynamic Response of Surrounding Rock in Highly-stressed Tunnel by Dynamic Disturbance[J]. , 2012, 30(22): 48-54. |
[5] |
. Research Progress and Prospect on the Distribution Layer in Protective Engineering[J]. , 2011, 29(11-11): 76-79. |
[6] |
. History, Present State and Future of Non-destructive Testing for Wood[J]. , 2010, 28(14): 113-117. |
|
|
|
|