Zobrazeno 1 - 10
of 91
pro vyhledávání: '"John L. Tassoulas"'
Autor:
Sedef Kocakaplan, John L. Tassoulas
Publikováno v:
International Journal of Solids and Structures. :1-7
We examine the torsional response of a pretensioned elastic circular rod. First, we review a procedure for computation of semidiscrete wave modes in the rod. The modes are continuous in the axial and circumferential directions but discrete in the rad
Autor:
Cuong T. Nguyen, John L. Tassoulas
Publikováno v:
International Journal for Numerical and Analytical Methods in Geomechanics. 44:3-18
Autor:
John L. Tassoulas, Jin Ho Lee
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 346:592-611
Root-Finding Absorbing Boundary Conditions (RFABCs) for scalar and elastic waves in infinite media are developed. First, the existing RFABC formulation for scalar-wave propagation problems is refined. Specifically, a Fourier series expansion or an ei
Autor:
John L. Tassoulas, Sedef Kocakaplan
Publikováno v:
Journal of Sound and Vibration. 443:293-309
This paper presents a study of incremental wave motion in elastic media with initial stress. Alternative formulations of the governing equations are examined as independent developments as well as special cases of a general theory in which the strain
Autor:
John L. Tassoulas, Cuong T. Nguyen
Publikováno v:
International Journal of Solids and Structures. 155:89-108
We present an extension of the combination of the Reciprocal Absorbing Boundary Condition (RABC) with Perfectly Matched Discrete Layers (PMDLs) for transient analysis of in-plane wave motion in a layered half-space. Due to the accuracy of RABC for mu
Autor:
John L. Tassoulas, Jin Ho Lee
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 330:207-219
In this study, we propose a new approach for development of absorbing boundary conditions for scalar-wave propagation problems in infinite media based on a root-finding algorithm for the solution of the exact wave dispersion relation. We select the N
Autor:
Cuong T. Nguyen, John L. Tassoulas
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 329:55-74
The Reciprocal Absorbing Boundary Condition (RABC) was recently introduced as an approach toward solution of elastic wave propagation problems in unbounded layered media. The idea underlying RABC is the application of time-domain reciprocity theorems
Autor:
John L. Tassoulas, Cuong T. Nguyen
Publikováno v:
Soil Dynamics and Earthquake Engineering. 99:44-55
In this paper, a reciprocal absorbing boundary condition (RABC) is combined with perfectly matched discrete layers (PMDLs) for the time-domain numerical analysis of SH-wave propagation in a layered half-space. The RABC is employed for representation
Autor:
John L. Tassoulas, Mohammad Raie
Publikováno v:
Marine Structures. 49:138-147
Torpedo anchors are used for station keeping of floating offshore platforms and fixing risers to the seabed in deep water. Their main benefit over other anchors is reduction in anchor installation cost via free falling in the water. A torpedo anchor