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    Prof. C. S. David Chen
    Dept. of Civil Engineering
    National Taiwan University

    Prof. Maenghyo Cho
    Dept. of Mechanical & Aerospace Engineering
    Seoul National University, Korea
Associate Editor-in-Chief
    Prof. Swantje Bargmann
    University of Wuppertal
    School of Mech. Eng. Safe. Eng. Gaussstr. 20
    42119 Wuppertal, Germany
Managing Editor
    Prof. Chang-Koon Choi
    Korea Advanced Inst. of Sci. & Tech.
    Daejeon 305-701, Korea

ISSN: 2383-7306(Print), ISSN: 2465-9711(Online)
Vol. 2(4 issues) for 2017, Quarterly
Aims and Scopes

The aim of Multi-Scale and Multi-Physics Mechanics is to provide a platform for publication of research results in which multi-scale and multi-physics mechanics play a vital role. This journal publishes articles with contributions in all aspects of multi-scale and multi-physics problems. The problems of multi-scale mechanics include structural, mechanical or material systems with varying length or time scales. The problems of multi-physics mechanics involve multiple physical models or multiple physical phenomena..
  The scope of Multi-Scale and Multi-Physics Mechanics covers a wide range of themes associated with multi-scale and multi-physics mechanics encountered in engineering and scientific research and practice. Typical subjects considered by the journal include:
Analytical, computational, and experimental methods for multi-scale and multiphysics mechanics
Multi-scale problems
Multi-physics problems
Computational materials science and engineering
Coupled mechanics
Mechanics and materials
Mechanics and biology
Other related topics
Editorial Board
Maysam Abbod
Department of Electronic and Computer Engineering,
Brunel University London, UK

Swantje Bargmann
Inst. of Continuum & Material Mechanics
Hamburg Univ of Technology, Germany

Inst. National des Sciences Appliquees de Rennes,
Dept. of Civil Engineering and Urban Planning, France

Vernescu, Bogdan M
Department of Mathematical Sciences
WPI, Worcester, MA

Marko Canadija
Faculty of Engineering
University of Rijeka, Croatia

I-Ling Chang
Department of Mechanical Engineering
National Cheng Kung University, Taiwan

Sheng-Der Chao
Institute of Applied Mechanics
National Taiwan University, Taiwan

Ching-Yao (Ken) Chen
Department of Mechanical Engineering
National Chiao Tung University, Taiwan

Murat Dicleli
Dept. of Struct. Eng.
Middle East Technical Univ., Ankara,Turkey

Denvid Lau
Dept of Architecture & Civil Engineering
City University of Hong Kong, Hong Kong

Khaled Habib
Mater. Sci. and Photo-Electronics Lab.
KISR, 24885 SAFAT,13109 Kuwait

Tong-Seok Han
School of Civil and Envn. Engineering
Yonsei University, Seoul, Korea

Jun Won Kang
Department of Civil Engineering
Hongik University, Seoul, Korea

Changhong Ke
Dept of Mechanical Engineering
Binghamton University, New York

Kilho Eom
Biomechanics Lab., College of Sport Science
Sungkyunkwan University, Korea

YuanTong Gu
School of Chemistry, Physics and Mechanical Engineering
Queensland Univ of Tech., Australia

Frederic Alain GRONDIN
Habilitation a Diriger des Recherches (HDR),
University of Nantes. France

Luis Manuel Cortesao Godinho
Dept. Civil Engineering.
University of Coimbra, Polo II, Portugal

Dongchul Kim
Department of Mechanical Engineering
Sogang University, Seoul, Korea

Jun-Sik Kim
Intelligent Mechanical Engineering
Kumoh Nat'l Inst of Technology, Korea

Moon Ki Kim
Department of Mechanical Engineering
Sungkyunkwan University, KOREA

Nien-Ti Tsou
Dept of Materials Science & Engineering
National Chiao Tung University, Taiwan

Yun-Che Wang
Dept of Civil Engineering
National Cheng Kung University, Taiwan

Julien Yvonnet
Université Paris-Est
Paris, France

Victor Iliev Rizov
Department of Technical Mechanics,
University of Architecture, Bulgaria

Seunghwa Ryu
Department of Mechanical Engineering

A. Takahashi
Tokyo University of Science
Tokyo, Japan

Chun Il Kim
Department of Mechanical Engineering
Univ of Alberta, Canada

Hyun-Gyu Kim
Dept of Mechanical & Automotive Engineering
Seoul National University, Korea

Sung Youb Kim
Department of Mechanical Engineering
UNIST, Ulsan, Korea
Takayuki Kitamura
Dept of Mechanical Engineering & Science
Kyoto University, Japan

Carsten K?nke
Institute of Structural Mechanics
Bauhaus-University Weimar, Germany

Yuri Lapusta
French Institute of Advanced Mechanics,
Clermont-Ferrand, France

Jaewook Lee
Dept of Aerospace & Mech. Engineering
Korea Aerospace Univ, KOREA

Kim Meow Liew
Dept of Architecture and Civil Engineering
City University of Hong Kong, H.K.

Zishun Liu
Xi'an Jiatong University
Xi'an, China

Chien-Ching Ma
Department of Mechanical Engineering
National Taiwan University, Taiwan

Sundararajan Natarajan
Dept. of Mechanical Engineering,
Indian Inst.of Technology-Madras, India

Chun-Wei Pao
Research Center for Applied Sciences
Academia Sinica, Taiwan

Gilberto Espinosa-Paredes
Universidad Autonoma Metropolitana
Iztapalapa unit, Mexico

Arnulfo Luevanos Rojas
University of Coahuila
Torreon, Coahuila, Mexico

Shaoqiang Tang
Dept of Mechanics & Engineering Science
Peking University, China

Prof. Nien-Ti Tsou
Nat'l Chiao Tung Univ.
Hsinchu city 300, Taiwan

Shin-Pon Ju
Dept of Mechanical and Electro-Mechanical Engineering
National Sun Yat-Sen University, Taiwan

Guide to Authors

1. Submission of the paper
Authors are asked to submit manuscripts in PDF (or Latex) format electronically through the Techno-Press Manuscript Upload System (TeMUS) ( Exceptionally, the special issue papers may be directly submitted to the Guest Editor. If you have difficulties in using TeMUS, please contact us at[]. On receiving submitted papers, the system will issue the paper ID and Password to the corresponding author which may be conveniently used to check the status of submitted papers.

2. Preparation of the manuscript
General : The manuscripts should be in English and typed with single column and single line spacing on single side of A4 paper. Submitted papers will be published in regular technical paper only. The first page of an article should contain; (1) a title of paper which well reflects the contents of the paper (Arial, 16pt), (2) all the name(s) and affiliations(s) of authors(s) (Arial, 12pt), (3) an abstract of 100~250 words (Times New Roman, 11pt), (4) 5-10 keywords following the abstract, and (5) footnote (personal title and email address of the corresponding author (required) and other authors' (not mandatory)). The paper should be concluded by proper conclusions which reflect the findings in the paper. The normal length of the technical paper should be about 14-20 journal pages. There will be no page charges and no other fees unless the author wishes arrangements to provide an open access to his article. Authors are advised to read the details in the Authors' Guide for guide and Template.
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References : A list of references which reflect the current state of technology in the field locates after conclusions of the paper. For details to prepare the list of references and cite them in the text, authors are advised to follow the introduction and the sample list in the Authors' Guide of the instruction.

3. Review
All the submitted papers that have passed the preliminary check by the editors will undergo a rigorous peer-review process to judge their significance and originality. Those papers positively recommended by at least two expert reviewers will be finally accepted for publication in the Techno-Press Journals or after any required modifications are made.

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5. Copyright
Submission of an article to a Techno-Press Journal implies that it presents the original and unpublished work, and not under consideration for publication elsewhere. On acceptance of the submitted manuscript, it is implied that the copyright thereof is transferred to the Techno-Press. The Agreement of Authorship, Originality, and Copyright Transfer must be signed and submitted.

6. Ethics
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7. Publication Fee
Except for open access articles, there is no page charge or article processing fee for submission and publication in this journal.

Sample issue
Volume 5, Number 1, March 2012

Considerable longitudinal rail forces and displacements may develop in continuous welded rail (CWR) track on long-span bridges due to temperature variations. The track stability may be disturbed due to excessive relative displacements between the sleepers and ballast bed and the accompanied reduction in frictional resistance. For high-speed tracks, however, solving these problems by installing rail expansion devices in the track is not an attractive solution as these devices may cause a local disturbance of the vertical track stiffness and track geometry which will require intensive maintenance. With reference to temperature, two actions are considered by the bridge loading standards, the uniform variation in the rail and deck temperature and the temperature gradient in deck. Generally, the effect of temperature gradient has been disregarded in the interaction analysis. This paper mainly deals with the effect of temperature gradient on the track-bridge interaction with respect to the support reaction, rail stresses and stability. The study presented in this paper was not mentioned in the related codes so far.

Key Words
Temperature gradient; track-bridge interaction; continuous welded rail; buckling factor; numerical modeling.

Rakesh Kumar and Akhil Upadhyay: Department of Civil Engineering, IIT Roorkee, Roorkee-247667, India

  • Wave propagation in a generalized thermo elastic plate embedded in elastic medium
    P. Ponnusamy and R. Selvamani
    Abstract; Full Text (852K)

In this paper, the wave propagation in a generalized thermo elastic plate embedded in an elastic medium (Winkler model) is studied based on the Lord-Schulman (LS) and Green-Lindsay (GL) generalized two dimensional theory of thermo elasticity. Two displacement potential functions are introduced to uncouple the equations of motion. The frequency equations that include the interaction between the plate and foundation are obtained by the traction free boundary conditions using the Bessel function solutions. The numerical calculations are carried out for the material Zinc and the computed nondimensional frequency and attenuation coefficient are plotted as the dispersion curves for the plate with thermally insulated and isothermal boundaries. The wave characteristics are found to be more stable and realistic in the presence of thermal relaxation times and the foundation parameter. A comparison of the results for the case with no thermal effects shows well agreement with those by the membrane theory.

Key Words
wave propagation; vibration of thermal plate; plate immersed in fluid; generalized thermo elastic plate; Winkler foundation.

P. Ponnusamy: Department of Mathematics, Government Arts College (Autonomous), Coimbatore, TamilNadu, India. R. Selvamani: Department of Mathematics, Karunya University, Coimbatore, TamilNadu, India.

  • Multiscale method and pseudospectral simulations for linear viscoelastic incompressible flows
    Ling Zhang and Jie Ouyang
    Abstract; Full Text (4391K)

The two-dimensional incompressible flow of a linear viscoelastic fluid we considered in this research has rapidly oscillating initial conditions which contain both the large scale and small scale information. In order to grasp this double-scale phenomenon of the complex flow, a multiscale analysis method is developed based on the mathematical homogenization theory. For the incompressible flow of a linear viscoelastic Maxwell fluid, a well-posed multiscale system, including averaged equations and cell problems, is derived by employing the appropriate multiple scale asymptotic expansions to approximate the velocity, pressure and stress fields. And then, this multiscale system is solved numerically using the pseudospectral algorithm based on a time-splitting semi-implicit influence matrix method. The comparisons between the multiscale solutions and the direct numerical simulations demonstrate that the multiscale model not only captures large scale features accurately, but also reflects kinetic interactions between the large and small scale of the incompressible flow of a linear viscoelastic fluid.

Key Words
linear viscoelastic fluid; incompressible flow; multiscale analysis; averaged equations; cell problems; pseudospectral algorithm.

Ling Zhang and Jie Ouyang: Department of Applied Mathematics, Northwestern Polytechnical University, Xi

  • Deterioration of tensile behavior of concrete exposed to artificial acid rain environment
    Y.F. Fan, Z.Q. Hu and H.Y. Luan
    Abstract; Full Text (13789K)

This study is focused on evaluation of the tensile properties of concrete exposed to acid rain environment. Acid rain environment was simulated by the mixture of sulfate and nitric acid in the laboratory. The dumbell-shaped concrete specimens were submerged in pure water and acid solution for accelerated conditioning. Weighing, tensile test, CT, SEM/EDS test and microanalysis were performed on the specimens. Tensile characteristics of the damaged concrete are obtained quantitatively. Evolution characteristics of the voids, micro cracks, chemical compounds, elemental distribution and contents in the concrete are examined. The deterioration mechanisms of concrete exposed to acid rain are well elucidated.

Key Words
concrete; multiscale; SEM; atmospheric corrosion.

Y.F. Fan and H.Y. Luan: Institute of Road and Bridge Engineering, Dalian Maritime University, Dalian, China Z.Q. Hu: Institute of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian, China

  • Non-linear analysis of pile groups subjected to lateral loads using
    H.S. Chore, R.K. Ingle and V.A. Sawant
    Abstract; Full Text (1717K)

The paper presents the analysis of two groups of piles subjected to lateral loads incorporating the non-linear behaviour of soil. The finite element method is adopted for carrying out the parametric study of the pile groups. The pile is idealized as a one dimensional beam element, the pile cap as two dimensional plate elements and the soil as non-linear elastic springs using the p-y curves developed by Georgiadis et al. (1992). Two groups of piles, embedded in a cohesive soil, involving two and three piles in series and parallel arrangement thereof are considered. The response of the pile groups is found to be significantly affected by the parameters such as the spacing between the piles, the number of piles in a group and the orientation of the lateral load. The non-linear response of the system is, further, compared with the one by Chore et al. (2012) obtained by the analysis of a system to the present one, except that the soil is assumed to be linear elastic. From the comparison, it is observed that the non-linearity of soil is found to increase the top displacement of the pile group in the range of 66.4%-145.6%, while decreasing the fixed moments in the range of 2% to 20% and the positive moments in the range of 54% to 57%.

Key Words
laterally loaded piles; winkler

H.S. Chore: Department of Civil Engineering, Datta Meghe College of Engineering, Sector-3, Airoli, Navi Mumbai- 400 708, India R.K. Ingle: Department of Applied Mechanics, Visvesvaraya National Institute of Technology (VNIT), Nagpur- 440 010, India V.A. Sawant: Department of Civil Engineering, Indian Institute of Technology (IIT), Roorkee–247 667, India

  • Coupled foot-shoe-ground interaction model to assess landing impact transfer characteristics to ground condition
    S.H. Kim, J.R. Cho, J.H. Choi, S.H. Ryu and W.B. Jeong
    Abstract; Full Text (4955K)

This paper investigates the effects of sports ground materials on the transfer characteristics of the landing impact force using a coupled foot-shoe-ground interaction model. The impact force resulting from the collision between the sports shoe and the ground is partially dissipated, but the remaining portion transfers to the human body via the lower extremity. However, since the landing impact force is strongly influenced by the sports ground material we consider four different sports grounds, asphalt, urethane, clay and wood. We use a fully coupled 3-D foot-shoe-ground interaction model and we construct the multi-layered composite ground models. Through the numerical simulation, the landing impact characteristics such as the ground reaction force (GRF), the acceleration transfer and the frequency response characteristics are investigated for four different sports grounds. It was found that the risk of injury, associated with the landing impact, was reduced as the ground material changes from asphalt to wood, from the fact that both the peak vertical acceleration and the central frequency monotonically decrease from asphalt to wood. As well, it was found that most of the impact acceleration and frequency was dissipated at the heel, then not much changed from the ankle to the knee.

Key Words
coupled foot-shoe-ground interaction model; landing impact force; ground condition; ground reaction force; acceleration transfer; frequency response.

S.H. Kim, J.H. Choi, S.H. Ryu and W.B. Jeong: School of Mechanical Engineering, Pusan National University, Busan 609-735, Korea J.R. Cho: School of Mechanical Engineering, Pusan National University, Busan 609-735, Korea; Research & Development Institute of Midas IT., Gyeonggi 463-400, Korea

Table of Contents
  • 2016  Volume 1      No. 1      No.2    No.3    No.4

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