|Tiêu đề||The effect of intial stress on the propagation of surface waves in a layered half-space|
|Loại công bố||Journal Article|
|Năm xuất bản||2016|
|Tác giả||Nam, NThi, Merodio, J, Ogden, RW, Vinh, PChi|
|Tạp chí||International Jouranl of Solids and Structures|
|Tóm tắt|| |
In this paper the propagation of small amplitude surface waves guided by a layer with a finite thickness on an incompressible half-space is studied. The layer and half-space are both assumed to be intially stressed. The combined effect of initial stress and finite deformation on the speed of Rayleigh waves is analyzed and illustrated graphically. With a suitable simple choice of constitutive law that includes initial stress, it is shown that many cases, as is to be expected, the effect of a finite deformation (with an associated pre-stress) is very similar to that of an initial stress (without an accompanying finite deformation). However, by contrast, when the finite deformation and initial stress and considered together independently with a judicious choice of material parameters different features are found that do not appear in the separate finite deformation or initial stress situations on their own.