Search Results - "PAK, Y. S"

Seismic invisibility: elastic wave cloaking via symmetrized transformation media by Sklan, Sophia R, Pak, Ronald Y S, Li, Baowen

“…Transformation media theory, which steers waves in solids via an effective geometry induced by a refractive material (Fermat's principle of least action),…”
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Three-Dimensional Frequency-Domain Green’s Functions of a Finite Fluid-Saturated Soil Layer Underlain by Rigid Bedrock to Interior Loadings by Zhang, Shiping, Pak, Ronald Y. S, Zhang, Junhui

“…Abstract This paper presents the three-dimensional frequency-domain Green’s functions of a saturated poroelastic soil layer with incompressible constituents…”
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Forced vertical and horizontal movements of a rectangular rigid foundation on a transversely isotropic half-space by Eskandari-Ghadi, Morteza, Ardeshir-Behrestaghi, Azizollah, Pak, Ronald Y. S., Karimi, Mostafa, Momeni-Badeleh, Masoud

“…SUMMARY An analytical investigation of a half‐space containing transversely isotropic material under forced vertical and horizontal displacements applied on a…”
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Three-dimensional time-harmonic fundamental solutions for a fluid-saturated poroelastic half-space with partially permeable free surface by Pooladi, Ahmad, Rahimian, Mohammad, Pak, Ronald Y. S.

“…Summary By virtue of a pair of scalar potentials for the displacement of the solid skeleton and the pore fluid pressure field of a saturated poroelastic…”
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Elastodynamic Potential Method for Transversely Isotropic Solid by Rahimian, Mohammad, Eskandari-Ghadi, Morteza, Pak, Ronald Y, Khojasteh, Ali

“…A theoretical formulation is presented for the determination of the displacements, strains, and stresses in a three-dimensional transversely isotropic linearly…”
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Asymmetric wave propagation in a transversely isotropic half-space in displacement potentials by Khojasteh, A., Rahimian, M., Eskandari, M., Pak, R.Y.S.

“…With the aid of a complete representation using two displacement potentials, an efficient and accurate analytical derivation of the fundamental Green’s…”
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Low-dose CT angiography of the lower extremities: a comparison study of image quality and radiation dose by Park, S., Park, S.H., Hwang, J.H., Kim, J.H., Lee, K.H., Park, S.H., Shin, J.H., Pak, S.Y., Kang, J.M.

“…To investigate the image quality and radiation dose of ultralow-dose (ULD) and low-dose (LD) lower-extremity computed tomography (CT) angiography (LE-CTA)…”
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Asymmetric Dynamic Green’s Functions in a Two-Layered Transversely Isotropic Half-Space by Khojasteh, Ali, Rahimian, Mohammad, Pak, Ronald Y. S, Eskandari, Morteza

“…By virtue of a complete representation using two displacement potentials, an analytical derivation of the elastodynamic Green’s functions for a transversely…”
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Axisymmetric interaction of a rigid disc with a transversely isotropic half-space by Katebi, Amir Aabbas, Khojasteh, Ali, Rahimian, Mohammad, Pak, Ronald Y. S.

“…A theoretical formulation is presented for the determination of the interaction of a vertically loaded disc embedded in a transversely isotropic half‐space. By…”
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Elastostatic response of a pile embedded in a transversely isotropic half-space under transverse loading by Gharahi, A., Rahimian, M., Eskandari-Ghadi, M., Pak, R. Y. S.

“…SUMMARY In the framework of elastostatics, a mathematical treatment is presented for the boundary value problem of the interaction of a flexible cylindrical…”
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An exact solution for SH-wave scattering by a radially multilayered inhomogeneous semicylindrical canyon by Zhang, Ning, Zhang, Yu, Gao, Yufeng, Pak, Ronald Y S, Wu, Yongxin, Zhang, Fei

“…SUMMARY An analytical treatment of the seismic response of a cylindrical canyon with a radially piecewise inhomogeneous arbitrary multilayered profile to a…”
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Singular boundary elements for three-dimensional elasticity problems by Guzina, Bojan B., Pak, Ronald Y.S., Martínez-Castro, Alejandro E.

“…The focus of this paper is a set of semi-discontinuous, traction-singular surface elements introduced to help the rigorous boundary integral analysis of…”
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Experimental synthesis of seismic horizontal free-field motion of soil in finite-domain simulations with absorbing boundary by Pak, Ronald Y.S., Soudkhah, Mahdi, Abedzadeh, Farzad

“…In this paper, a fundamental assessment of the method of physical wave-absorbing boundary and centrifuge modeling is presented in the context of experimental…”
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Three-Dimensional Green's Functions for a Multilayered Half-Space in Displacement Potentials by Pak, Ronald Y. S, Guzina, Bojan B

“…To advance the mathematical and computational treatments of mixed boundary value problems involving multilayered media, a new derivation of the fundamental…”
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Analytic resolution of time-domain half-space Green's functions for internal loads by a displacement potential-Laplace-Hankel-Cagniard transform method by Pak, Ronald Y S, Bai, Xiaoyong

“…A refined yet compact analytical formulation is presented for the time-domain elastodynamic response of a three-dimensional half-space subject to an arbitrary…”
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Analysis of Soft Fibers with Kinematic Constraints and Cross-Links by Finite Deformation Beam Theory by Vernerey, Franck, Pak, Ronald Y. S

“…This paper presents a hybrid analytical–computational mechanics formulation for an arbitrarily curved Timoshenko beam undergoing planar finite deformation and…”
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Method of Adaptive-Gradient Elements for Computational Mechanics by Pak, Ronald Y. S, Ashlock, Jeramy C

“…For tackling high-gradient, localized, or singular boundary value problems, the concept of an adaptive-gradient (AG) element family is introduced to advance…”
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Experimental Response of Piles in Sand under Compound Motion by Ashlock, Jeramy C, Pak, Ronald Y

“…This paper describes a fundamental experimental study on the vertical, horizontal, and rocking dynamic behavior of single pile foundations in granular soils…”
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Elastostatic Green’s functions for an arbitrary internal load in a transversely isotropic bi-material full-space by Eskandari-Ghadi, Morteza, Pak, Ronald Y.S., Ardeshir-Behrestaghi, Azizollah

“…The problem of a full-space which is composed of two half-spaces with different transversely isotropic materials with an internal load at an arbitrary distance…”
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Analysis of indentation of a 3m trigonal piezoelectric half-plane under a smooth insulating punch by Kharrazi, Hossein, Khojasteh, Ali, Rahimian, Mohammad, Pak, Ronald Y. S.

“…This paper analytically investigates the indentation problem of a 3m trigonal piezoelectric half-plane under a frictionless insulating punch for the first…”
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