000004751 001__ 4751
000004751 005__ 20141119144550.0
000004751 04107 $$aeng
000004751 046__ $$k2002-06-02
000004751 100__ $$aSenjuntichai, Teerapong
000004751 24500 $$aVERTICAL VIBRATIONS OF A RIGID DISK ON A MULTI-LAYERED POROELASTIC MEDIUM

000004751 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004751 260__ $$bColumbia University in the City of New York
000004751 506__ $$arestricted
000004751 520__ $$2eng$$aThis paper considers time-harmonic vertical vibrations of a rigid circular disk resting on the surface of a multi-layered poroelastic half space. The half space under consideration consists of a number of layers with different thickness and material properties. The interaction problem is analyzed by dividing the contact surface between a disk and a layered half space into a number of concentric annular rings with uniform distribution of traction. Nodal points are selected at the center of each annular region. A flexibility equation system is established to determine the intensity of contact tractions at different nodal locations by imposing the appropriate rigid body displacement boundary conditions. The influence functions required to establish the flexibility equation system correspond to the displacement Green 's functions of a multilayered poroelastic half space based on Biot 's elastodynamic theory for porous media. Selected numerical results for vertical compliances and contact stresses of a rigid disk on different poroelastic media are presented to portray the influence of poroelastic effects on the dynamic response.

000004751 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004751 653__ $$aPoroelasticity, soil-structure interaction, vertical vibrations, multi-layered half space

000004751 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004751 720__ $$aSenjuntichai, Teerapong$$iSapsathiarn, Yasothorn$$iRajapakse, R.K.N.D.
000004751 8560_ $$ffischerc@itam.cas.cz
000004751 8564_ $$s227037$$uhttps://invenio.itam.cas.cz/record/4751/files/276.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004751 962__ $$r4594
000004751 980__ $$aPAPER