ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
Collection
Language
Years
  • 1
    Publication Date: 2011-06-25
    Description:    Solutions for the generalized forms of Burgers, Burgers–KdV, and KdV equations with time-dependent variable coefficients and with initial and boundary conditions are constructed. The analysis rests mainly on the standard group method. Similarity solutions are found which reduce the nonlinear system of partial differential equations to systems of ordinary differential equations to obtain some exact solutions and others as numerical solutions. Content Type Journal Article Pages 1-16 DOI 10.1007/s00707-011-0503-1 Authors Mina B. Abd-el-Malek, Department of Engineering Mathematics and Physics, Faculty of Engineering, Alexandria University, Alexandria, 21544 Egypt Medhat M. Helal, Department of Engineering Mathematics and Physics, Faculty of Engineering, Zagazig University, Zagazig, Egypt Journal Acta Mechanica Online ISSN 1619-6937 Print ISSN 0001-5970
    Print ISSN: 0001-5970
    Electronic ISSN: 1619-6937
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Publication Date: 2011-06-27
    Description:    The dynamics of grain fragmentation is usually ignored in the study of rapid granular flows. This is realistic for experiments on small-scale chutes or in many industrial processes where the specific granular energy is too small for particles to break but is unrealistic for natural rock avalanches, where the extremely comminuted state is perhaps the most evident aspect of the deposit. Based on observations of natural landslide deposits, it has been suggested that the stress may increase along a sequence of force chains formed by the granular material. However, simple calculations show that rock avalanche deposits exhibit a much more advanced degree of fragmentation than explainable with the static chain model. It is thus deduced that fragmentation along force chains must be combined with the effect of a bumpy topography. A simple model of a force chain moving on a rugged incline is then introduced, which exhibits increased fragmentation rate in the presence of a bumpy topography. It is shown that both the wave number and amplitude of the topographic undulations are significant in the efficiency of fragmentation. Content Type Journal Article Pages 1-8 DOI 10.1007/s00707-011-0504-0 Authors F. V. De Blasio, Department of Geosciences, University of Oslo, Oslo, Norway Journal Acta Mechanica Online ISSN 1619-6937 Print ISSN 0001-5970
    Print ISSN: 0001-5970
    Electronic ISSN: 1619-6937
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Publication Date: 2011-06-27
    Description:    In the present work, we investigate the problem of multiple cracks on the interface between a piezoelectric layer and an orthotropic substrate. The method of dislocation simulation and singular integral equation are used to solve the crack problem. The theoretical derivation is verified by the classical result in a special case. Numerical results of the stress intensity factor are obtained, and thereby the effects of geometrical parameters and material orthotropy are surveyed. The optimal stiffness ratio of the orthotropic substrate is suggested for the purpose of interfacial fracture prevention, which is significant for the design and assessment of such a kind of smart structures. Content Type Journal Article Pages 1-12 DOI 10.1007/s00707-011-0506-y Authors Fei-Xiang Feng, Academy of Armored Force Engineering, Beijing, 100072 China Kang Yong Lee, School of Mechanical Engineering, Yonsei University, Seoul, 120-749 Republic of Korea Yong-Dong Li, Academy of Armored Force Engineering, Beijing, 100072 China Journal Acta Mechanica Online ISSN 1619-6937 Print ISSN 0001-5970
    Print ISSN: 0001-5970
    Electronic ISSN: 1619-6937
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Publication Date: 2011-06-25
    Description:    The stresses developed in a body due to a moving load causing fracture are an interesting problem of mechanics having its application toward the stability of a medium. This paper is concerned with the stresses developed in an irregular isotropic half-space due to a normal moving load at a rough free surface. The irregularity has been taken in the form of a parabola and a rectangular irregularity has also been discussed as a special case of parabolic irregularity. Closed-form expressions for the normal and shear stresses have been obtained. The effect of friction, irregularity factor, and maximum amplitude of irregularity has been discussed for both stresses. Content Type Journal Article Pages 1-10 DOI 10.1007/s00707-011-0507-x Authors A. Chattopadhyay, Department of Applied Mathematics, Indian School of Mines Dhanbad, Dhanbad, 826004 India S. Gupta, Department of Applied Mathematics, Indian School of Mines Dhanbad, Dhanbad, 826004 India V. K. Sharma, Defence R & D Organisation, ISSA LAB, Metclafe House, Delhi, 110054 India Pato Kumari, Department of Mathematics, JIIT Noida, Noida, 201307 India Journal Acta Mechanica Online ISSN 1619-6937 Print ISSN 0001-5970
    Print ISSN: 0001-5970
    Electronic ISSN: 1619-6937
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Publication Date: 2011-06-25
    Description:    In a recent paper of Weidman and Sprague (Acta Mech., 2011 ), the unsteady flows generated by an impermeable infinite flat plate advancing with constant velocity V toward, or receding from an orthogonal (plane or axisymmetric) stagnation-point flow, have been investigated by an exact similarity reduction of the Navier–Stokes equations. It has been shown that in the co-moving reference frame of the plate, the induced flow appears as a steady flow, with an additional term R f ′′ in the governing equation of the similar stream function f ( η ). The Reynolds number R involved in this additional term is proportional to the plate velocity V . The present paper shows, however, that with the aid of a simple transformation, the additional term R f ′′ can be removed from the governing equation, its effect being transferred in the boundary condition for f ( η ). As a consequence, the unsteady flow problems of Weidman and Sprague reduce to the classical steady stagnation-point flow problems for permeable surfaces with a uniform lateral suction or injection of the fluid, so that the transpiration parameter f (0) coincides with R for the plane and with R /2 for the axisymmetric flow, respectively. The main benefit of this approach is that all the results of the latter well-investigated problems can simply be transcribed for the problems formulated by Weidman and Sprague (Acta Mech, 2011 ). Content Type Journal Article Pages 1-5 DOI 10.1007/s00707-011-0502-2 Authors Eugen Magyari, Departement Physik, Universität Basel, Klingelbergstr. 82, CH 4056 Basel, Switzerland Journal Acta Mechanica Online ISSN 1619-6937 Print ISSN 0001-5970
    Print ISSN: 0001-5970
    Electronic ISSN: 1619-6937
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Publication Date: 2011-06-27
    Description:    In this paper, free vibrations of symmetric angle-ply laminated cylindrical shells are presented under different thickness variations. The thickness variations of the shells are linear, exponential, and sinusoidal. Spline function techniques are adopted to approximate the displacement functions, and the point collocation method is used to obtain the generalized eigenvalue problem with appropriate boundary conditions. The effects of the geometric parameters, thickness parameters, and material parameters on the frequencies of symmetric angle-ply laminated cylindrical shells with two kinds of material properties under different boundary conditions are analyzed. Content Type Journal Article Pages 1-11 DOI 10.1007/s00707-011-0505-z Authors K. K. Viswanathan, Department of Naval Architecture and Ocean Engineering, Inha University, #253, Yonghyun dong, Nam ku, Inchon, 402-751 South Korea Jang Hyun Lee, Department of Naval Architecture and Ocean Engineering, Inha University, #253, Yonghyun dong, Nam ku, Inchon, 402-751 South Korea Zainal Abdul Aziz, Department of Mathematics, Faculty of Science, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia I. Hossain, Department of Physics, Faculty of Science, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia Journal Acta Mechanica Online ISSN 1619-6937 Print ISSN 0001-5970
    Print ISSN: 0001-5970
    Electronic ISSN: 1619-6937
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Publication Date: 2011-06-21
    Description:    In the proposed paper, a new problem on the steady-state oscillations of an elastic infinite cone is solved for the point oscillating force enclosed to a cone’s vertex. On a cone’s conic surface, the stresses are given. The auxiliary problem for a cone truncated by a spherical surface is formulated with the aim to obtain the solution of the initial problem. The solution is constructed with the help of the integral transformation method and the method of Green’s function. The limiting transition in the solution’s formulas is carried out to obtain the exact solution of the initial problem. The calculation of the displacements and the stress wave field of the cone is performed. Content Type Journal Article Pages 1-10 DOI 10.1007/s00707-011-0501-3 Authors G. Popov, Institute of Mathematics, Economics and Mechanics, Odessa Mechnikov University, str. Dvoryanskaya, 2, 65082 Odessa, Ukraine N. Vaysfel’d, Institute of Mathematics, Economics and Mechanics, Odessa Mechnikov University, str. Dvoryanskaya, 2, 65082 Odessa, Ukraine Journal Acta Mechanica Online ISSN 1619-6937 Print ISSN 0001-5970
    Print ISSN: 0001-5970
    Electronic ISSN: 1619-6937
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Publication Date: 2011-05-11
    Description:    Buoyancy-driven bubbles and drops are deformable and exhibit different boundaries from mobile to immobile. Owing to the complexity of these flows, the literature knows various scaling parameters for their description. This paper determines a set of parameters on the basis of the force balance equations. It identifies the Archimedes number as the leading parameter while the Reynolds number is considered a flow variable. This ordering scheme of parameters is applied to a set of new data on bubbles rising in five different silicon oils. Data representation and limiting cases come out consistently. The use of the Archimedes number leads even to a successful simple model for the normalized rise velocity. Content Type Journal Article Pages 1-14 DOI 10.1007/s00707-010-0431-5 Authors Franz Peters, Department of Mechanical Engineering, Chair of Fluid Mechanics, University of Bochum, Bochum, Germany Björn Gaertner, Department of Mechanical Engineering, Chair of Fluid Mechanics, University of Bochum, Bochum, Germany Journal Acta Mechanica Online ISSN 1619-6937 Print ISSN 0001-5970
    Print ISSN: 0001-5970
    Electronic ISSN: 1619-6937
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Publication Date: 2011-05-11
    Description:    Targeted energy transfer (TET) in a compound nonlinear 2 degrees-of-freedom system during free and forced excitations is studied analytically and numerically. The nonlinearity of the system is represented intentionally by a non-smooth piece-wise linear function for the sake of practical investigations. Further stability analysis of the system is demonstrated and commented upon and the behavior of the system during relaxation and its strongly modulated response is studied and pinpointed. Content Type Journal Article Pages 1-26 DOI 10.1007/s00707-011-0492-0 Authors Claude-Henri Lamarque, Université de Lyon, École Nationale des Travaux Publics de l’État, DGCB, FRE CNRS 3237, 3 rue Maurice Audin, 69518 Vaulx-en-Velin Cedex, France Oleg V. Gendelman, Faculty of Mechanical Engineering, Technion-Israel Institute of Technology, 32000 Technion City, Haifa, Israel Alireza Ture Savadkoohi, Université de Lyon, École Nationale des Travaux Publics de l’État, DGCB, FRE CNRS 3237, 3 rue Maurice Audin, 69518 Vaulx-en-Velin Cedex, France Emilie Etcheverria, Université de Lyon, École Nationale des Travaux Publics de l’État, DGCB, FRE CNRS 3237, 3 rue Maurice Audin, 69518 Vaulx-en-Velin Cedex, France Journal Acta Mechanica Online ISSN 1619-6937 Print ISSN 0001-5970
    Print ISSN: 0001-5970
    Electronic ISSN: 1619-6937
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Publication Date: 2011-05-19
    Description:    Functionally graded materials are the materials whose material properties are smoothly varying along one axis, and they are used as buffer layers to connect two dissimilar materials. By choosing proper functionally graded parameters, the material properties at the interface can be identical to prevent the interfacial fracture problem. This study analyzes the heat conduction problem of nonhomogeneous functionally graded materials for a layer sandwiched between two half-planes. From the Fourier transform method, the full-field solutions of temperature and heat flux are obtained in explicit forms. Numerical calculations based on the analytical solutions are performed and are discussed in detail. The continuous characteristics of the temperature and heat flux along the interface are emphasized, and some interesting phenomena are presented in this study. It is noted that the temperature and heat flux fields along the interface for nonhomogeneous functionally graded materials are continuous if the conductivities are identical at the interface. Furthermore, the temperature and heat flux q y have the identical contour slopes across the interface. Content Type Journal Article Pages 1-15 DOI 10.1007/s00707-011-0498-7 Authors Chien-Ching Ma, Department of Mechanical Engineering, National Taiwan University, Taipei, 10617 Taiwan, ROC Yi-Tzu Chen, Department of Mechanical Engineering, National Taiwan University, Taipei, 10617 Taiwan, ROC Journal Acta Mechanica Online ISSN 1619-6937 Print ISSN 0001-5970
    Print ISSN: 0001-5970
    Electronic ISSN: 1619-6937
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...