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Editors-in-Chief
    Prof. Chang-Koon Choi
    Dept. of Civil and Environmental Eng.
    Korea Advanced Inst. of Sci. & Tech.
    Daejeon 305-701, Korea


    Prof. Adnan Ibrahimbegovic
    ECOLE NORMALE SUPERIEURE-Cachan
    94230 Cachan, France

ISSN: 2234-2184(Print), 2234-2192(Online)
Vol 3(4 issues) for 2014, Quarterly
Aims and Scope
Coupled Systems Mechanics (CSM), an International Journal, aims at opening a new access to the valuable source of information and providing an excellent publication channel for the global community of Coupled Systems Mechanics. The areas covered by CSM journal include the current advances in Interactions (or Coupled Mechanics) of

* Fluid-Structures,
* Soil-Structure,
* Wind-Structure,
* Soil-Foundation-Pile-Structures,
* Vehicle-Bridge, and
* Train-Rail.
Editorial Board
Prof. BS Altan
Bayburt University
Bayburt 69000, Turkey

Prof. B Asgarian
K. N. Toosi University of Technology
Tehran 19697, Iran

Dr. W Bai
National University of Singapore
117576, Singapore

Prof. H Bijl
Delft University of Technology
HS Delft 2629, The Netherlands

Dr. JE Borovsky
Los Alamos National Laboratory
Los Alamos, NM 87545, USA

Prof. D Brancherie
UTC Compiegne
Compiegne cedex 60205, France

Prof. B Brank
Ljubljana University
Center 12, Slovenija

Prof. EH van Brummelen
Eindhoven University of Technology
Eindhoven MB 5600, The Netherlands

Prof. S Canic
University of Houston
Houston, TX 77204-3476, USA

Dr. S Chakraverty
National Institute of Technology
Rourkela 769 008, India

Prof. N Chouw
The University of Auckland
Auckland 1142, New Zealand

Dr. J Degroote
Ghent University
Ghent 9000, Belgium

Prof. Dieter Dinkler
TU Braunschweig
38106 Braunschweig, Germany

Prof. Edwin Ikenna Ekwue
The University of the West Indies
St. Augustine , Trinidad

Prof. G Exadaktylos
Technical University of Crete
Chania 73100, Hellas (Greece)

Prof. N Hur
Sogang University
Seoul 121-742, South Korea

Prof. B Jeremic
University of California- Davis
Davis, CA 95616, USA

Prof. L Jun
Wuhan University of Technology
Wuhan 430063, China

Prof. HJ Jung
Korean Advanced Inst. of Sci. & Tech.
Daejeon 305-701, South Korea

Prof. MO Kaya
Istanbul Technical University
Istanbul 80626, Turkey

Prof. I Kozar
Rijeka University
Rijeka 51000, Croatia

Prof. G Leoni
University of Camerino
Camerino 62032, Italy

Prof. QS Li
City University of Hong Kong
Kowloon, Hong Kong
Prof. SS Lin
National Taiwan Ocean Univ.
Keelung 20224, Taiwan

Dr. B Markert
University of Stuttgart
Stuttgart 70569, Germany

Prof. H Matthies
Inst. of Sci. Comp. (TU-BS)
Braunschweig 38106, Germany

Prof. G McClure
McGill University
Montreal, H3A 0C3, Canada

Prof. A Moosaie
Yasouj University
Yasouj 75914-353, Iran

Prof. CM Murea
Haute Alsace University
Mulhouse 68093, France

Dr. P Nair
Indian Space Research Org.
Thiruvananthapuram 695 022, India

Prof. D Peric
Swansea University
Swansea 8PP SA2, UK

Prof. FD Pin
Livermore Software Tech. Corp.
Livermore, CA 94551, USA

Prof. M Sato
Hokkaido University
Sapporo 060-8628, Japan

Prof. H Shima
University of Yamanashi
Yamanashi 400-8510, Japan

Prof. N Silvestre
Technical University of Lisbon
Lisbon 1049-001, Portugal

Prof. D Soares Jr.
Federal Univ. of Juiz de Fora
Juiz de Fora 36036-330, Brazil

Prof. Z Su
The Hong Kong Polytechnic Univ.
Hung Hom, Hong Kong

Prof. T Touhei
Tokyo University of Science
Noda City 278-8510, Japan

Prof. A Valencia
University of Chile
Santiago 2777, Chile

Prof. WA Wall
Technical University of Munich
M?nchen, D-85748, Germany

Prof. WQ Wang
Kunming Univ. of Sci. and Tech.
Kunming 650051, China

Dr. J Yang
RMIT University
Melbourne 3083, Australia

Prof. LX Zhang
Kunming Univ. of Sci. and Tech.
Kunming 650051, China

Prof. X Zhang
Tsinghua University
Beijing 100084, China

Prof. C Zhao
Central South University
Changsha 410083, China




Instructions to Authors

1. Submission of the paper
Authors are asked to submit manuscripts in PDF format electronically through the Techno-Press Manuscript Upload System (TeMUS) (http://www.techno-press.org/papers). Exceptionally, the special issue papers may be directly submitted to the Guest Editor. If you have difficulties in using TeMUS, please contact us at[technop5@chol.com]. 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 three categories, i.e., 1) Regular technical paper, 2) Review papers and 3) Discussions. 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 Appendix A for guide and Appendix B for a template of the instructions to authors for the format of the first page of the paper.
Tables and figures : Tables and figures should be consecutively numbered and have short titles. They should be referred to in the text as following examples (e.g., Fig. 1(a), Figs. 1 and 2, Figs. 1(a)-(d) / Table 1, Tables 1-2), etc. Tables should have borders (1/2pt plane line) with the captions right before the table. Figures should be properly located in the text as an editable image file (.jpg) with captions on the lower cell. All of the original figures are required at the end of the manuscript for reference in editing.
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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 Appendix A of the instruction.
3. Review
All the submitted papers will undergo a peer-review process, and 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.
4. Proofs
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5. Copyright
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6. Ethics
For the policies on the research and publication ethics not stated in this instructions, International standards for editors and authors (http://publicationethics.org/international-standards-editors-and-authors) can be applied.

*Appendix A. Authors' Guide
*Appendix B. Template
*Appendix C. Index
Sample issue
Volume 2, Number 1, March 2013
  • Pyroelectric and pyromagnetic effects on behavior of magneto-electro-elastic plate
    P. Kondaiah, K. Shankar and N. Ganesan
    Abstract; Full Text (1304K)

Abstract
Under thermal environment, Magneto-Electro-Elastic (MEE) material exhibits pyroelectric and pyromagnetic effects which can be used for enhancing the performance of MEE sensors. Recently studies have been published on material constants such as pyroelectric constant and pyromagnetic constant for magneto-electro-thermo-elastic smart composite. Hence, the main aim of this paper is to study the pyroelectric and pyromagnetic effects on behavior of MEE plate under different boundary conditions subjected to uniform temperature. A numerical study is carried out using eight noded brick finite element under uniform temperature rise of 100 K. The study focused on the pyroelectric and pyromagnetic effects on system parameters like displacements, thermal stresses, electric potential, magnetic potential, electric displacements and magnetic flux densities. It is found that, there is a significant increase in electric potential due to the pyroelectric and pyromagnetic effects. These effects are visible on electric and magnetic potentials when CFFC and FCFC boundary conditions are applied. Additionally, the pyroelectric and pyromagnetic effects at free edge is dominant (nearly thrice the value in CFFC in comparison with FCFC) than at middle of the plate. This study is a significant contribution to sensor applications.

Key Words
magneto-electro-elastic sensor; pyroelectric; pyromagnetic; finite element

Address
P. Kondaiah, K. Shankar and N. Ganesan : Machine Design Section, Department of Mechanical Engineering, Indian Institute of Technology Madras, Chennai 600 036, India

  • Analytical model for estimation of digging forces and specific energy of cable shovel
    M. Stavropoulou , G. Xiroudakis and G. Exadaktylos
    Abstract; Full Text (1717K)

Abstract
An analytical algorithm for the estimation of the resistance forces exerted on the dipper of a cable shovel and the specific energy consumed in the cutting-loading process is presented. Forces due to payload and to cutting of geomaterials under given initial conditions, cutting trajectory of the bucket, bucket\' s design, and geomaterial properties are analytically computed. The excavation process has been modeled by means of a kinematical shovel model, as well as of dynamic payload and cutting resistance models. For the calculation of the cutting forces, a logsandwich passive failure mechanism of the geomaterial is considered, as has been found by considering that a slip surface propagates like a mixed mode crack. Subsequently, the Upper-Bound theorem of Limit Analysis Theory is applied for the approximate calculation of the maximum reacting forces exerted on the dipper of the cable shovel. This algorithm has been implemented into an Excel TM spreadsheet to facilitate user-friendly, \"transparent\" calculations and built-in data analysis techniques. Its use is demonstrated with a realistic application of a medium-sized shovel. It was found, among others, that the specific energy of cutting exhibits a size effect, such that it decreases as the (-1)-power of the cutting depth for the considered example application.

Key Words
ground-tool interaction;cable shovel; passive earth theory; limit analysis; fracture mechanics; cutting force; specific energy

Address
M. Stavropoulou : Department of Dynamic, Tectonic and Applied Geology, Faculty of Geology and Geoenvironment, University of Athens, GR-15784, Greece G. Xiroudakis and G. Exadaktylos : Mining Engineering Design Laboratory, Department of Mineral Resources Engineering, Technical University of Crete, GR-73100 Chania, Greece

  • Modeling and analysis of a cliff-mounted piezoelectric sea-wave energy absorption system
    G.A. Athanassoulis and K.I. Mamis
    Abstract; Full Text (1487K)

Abstract
Sea waves induce significant pressures on coastal surfaces, especially on rocky vertical cliffs or breakwater structures (Peregrine 2003). In the present work, this hydrodynamic pressure is considered as the excitation acting on a piezoelectric material sheet, installed on a vertical cliff, and connected to an external electric circuit (on land). The whole hydro/piezo/electric system is modeled in the context of linear wave theory. The piezoelectric elements are assumed to be small plates, possibly of stack configuration, under a specific wiring. They are connected with an external circuit, modeled by a complex impedance, as usually happens in preliminary studies (Liang and Liao 2011). The piezoelectric elements are subjected to thickness-mode vibrations under the influence of incident harmonic water waves. Full, kinematic and dynamic, coupling is implemented along the water-solid interface, using propagation and evanescent modes (Athanassoulis and Belibassakis 1999). For most energetically interesting conditions the long-wave theory is valid, making the effect of evanescent modes negligible, and permitting us to calculate a closed-form solution for the efficiency of the energy harvesting system. It is found that the efficiency is dependent on two dimensionless hydro/piezo/electric parameters, and may become significant (as high as 30 – 50%) for appropriate combinations of parameter values, which, however, corresponds to exotically flexible piezoelectric materials. The existence or the possibility of constructing such kind of materials formulates a question to material scientists.

Key Words
renewable energy; piezoelectricity; sea wave energy

Address
G.A. Athanassoulis and K.I. Mamis : School of Naval Architecture and Marine Engineering, NTUA, Zografos 15773, Greece

  • Strain-based seismic failure evaluation of coupled dam-reservoir-foundation system
    M.A. Hariri-Ardebili, H. Mirzabozorg and A. Ghasemi
    Abstract; Full Text (3041K)

Abstract
Generally, mass concrete structural behavior is governed by the strain components. However, relevant guidelines in dam engineering evaluate the structural behavior of concrete dams using stress-based criteria. In the present study, strain-based criteria are proposed for the first time in a professional manner and their applicability in seismic failure evaluation of an arch dam are investigated. Numerical model of the dam is provided using NSAD-DRI finite element code and the foundation is modeled to be massed using infinite elements at its far-end boundaries. The coupled dam-reservoir-foundation system is solved in Lagrangian-Eulerian domain using Newmark-B time integration method. Seismic performance of the dam is investigated using parameters such as the demand-capacity ratio, the cumulative inelastic duration and the extension of the overstressed/overstrained areas. Real crack profile of the dam based on the damage mechanics approach is compared with those obtained from stress-based and strain-based approaches. It is found that using stress-based criteria leads to conservative results for arch action while seismic safety evaluation using the proposed strain-based criteria leads to conservative cantilever action.

Key Words
dam-foundation interaction; massed foundation; strain-based criteria; damage mechanics; infinite elements

Address
M.A. Hariri-Ardebili : Department of Civil Environmental and Architectural Engineering, University of Colorado at Boulder, P.O. Box 80309-0428, Boulder, CO, USA H. Mirzabozorg and A. Ghasemi: 2Department of Civil Engineering, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran, Iran

  • Nonlinear response of fixed jacket offshore platform under structural and wave loads
    Shehata E. Abdel Raheem
    Abstract; Full Text (6040K)

Abstract
The structural design requirements of an offshore platform subjected to wave induced forces and moments in the jacket can play a major role in the design of the offshore structures. For an economic and reliable design; good estimation of wave loadings are essential. A nonlinear response analysis of a fixed offshore platform under structural and wave loading is presented, the structure is discretized using the finite element method, wave plus current kinematics (velocity and acceleration fields) are generated using 5th order Stokes wave theory, the wave force acting on the member is calculated using Morison\'s equation. Hydrodynamic loading on horizontal and vertical tubular members and the dynamic response of fixed offshore structure together with the distribution of displacement, axial force and bending moment along the leg are investigated for regular and extreme conditions, where the structure should keep production capability in conditions of the 1-yr return period wave and must be able to survive the 100-yr return period storm conditions. The result of the study shows that the nonlinear response investigation is quite crucial for safe design and operation of offshore platform.

Key Words
finite elements; fixed offshore platform; nonlinear response; wave-structure interaction

Address
Shehata E. Abdel Raheem : Taibah University, Medina, Saudi Arabia, Civil Engineering Department, Faculty of Engineering, Assiut University, Egypt

Table of Contents
       
 
  • 2014  Volume 3      No. 1      No.2    No.3
     
  • 2013  Volume 2      No. 1      No.2    No.3    No.4
     
  • 2012  Volume 1      No. 1      No.2    No.3    No.4
           
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