New Methods for Structural Condition Assessment of Highway and Airport Pavements

摘要：

Transient wave propagation in multilayered viscoelastic solids on bedrock is formulated analytically using integral transform and transfer-matrix approaches.The viscoelastic solution is obtained by applying the elastic-viscoleastic correspondence principle to its elastic counterpart.The derived result provides a theoretical basis to allow an effective and efficient numerical computation to analyze transient wave propagation in multilayered viscoelastic solids with specific initial condition.A computer program DynaLayer is developed for analyzing transient wave propagation in multilayered viscoelastic solids under arbitrary dynamic loads.The results are validated by comparing with those available in the literature and obtained from finite element analysis using ANSYS.Excellent agreement has been observed,which verifies the correctness of the theory,algorithm and computer program developed in this study.The conclusion and findings of this study may result in a number of engineering applications,such as nondestructive evaluation of highway and airport pavements,petroleum exploration,geophysical inversion,and vehicle weigh-inmotion systems.

关键词： viscoelasticity wave equation integral transform elastodynamics

作者: Lu Sun

作者单位: Department of Civil Engineering,Catholic University of America,Washington D.C.20064 Phone:[phone];Fax:[phone];Email:[e-mail]

会议类型: 国际会议

会议名称: The World Forum on Smart Materials and Smart Structures Technology(SMSST07)(2007年世界智能材料与智能结构技术论坛)

会议地点: 重庆·南京

会议语种:英文

在线出版日期: 2007-05-01（万方平台首次上网日期，不代表论文的发表时间）