چکیده مقاله
the dynamic response of a foundation is strongly influenced by its dynamics interaction with the support unbounded domain of soil To obtain reliable results the anisotropy and non homogeneity of a soil developed during its formation process has to be considered In this paper the novel scaled boundary finite element method is extended to simulate time harmonic responses of non homogeneous unbounded domains whose modulus of elasticity and mass density vary ad power functions of spatial coordinates Only the boundary is discredited yielding a reduction of the spatial dimension by one Unlike the boundary element method no foundamental solution required To enforce the radiation condition at the infinity, an asymptotic expansion of the dynamics – stiffness matrix for high frequency is developed Material anisotropy can be handled without additional efforts A numerical example of non homogeneous transversely isotropic unbounded domain demonstrates the accuracy and simplicity of this method
کلیدواژهها
نویسندگان
Mohammad Hossein Bazyar
Chongmin song Scool of Civil and Environmental Engineering, University of New South Wales, SydneyNSW ۲۰۵۲,Australia
Chongmin song
Scool of Civil and Environmental Engineering, University of New South Wales, SydneyNSW ۲۰۵۲,Australia
شیوه ارجاع
Bazyar, Mohammad Hossein and song, Chongmin,1385,Time-harmonic response of foundations embedded in elastic non-homogeneous unbounded domains,7th International Congress on Civil Engineering,Tehran
ارائهشده در
مجموعه مقالات هفتمین کنگره بین المللی مهندسی عمران17 اردیبهشت 1385 · تهران