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  • 1
    Electronic Resource
    Electronic Resource
    Composite shells with interlaminar imperfections (1993)
    Springer
    Archive of applied mechanics 63 (1993), S. 543-550 
    Details
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Übersicht In diesem Beitrag wird der Einfluß von anfänglichen Zwischenschichtdefekten auf das Verhalten einer Verbundstoffschale untersucht und die Materialgesetze für solche Schalen werden aufgestellt.
    Notes: Summary In this contribution the effect of interlaminar initial imperfections on a composite shell behavior is investigated. The constitutive equations for shells with initial interlaminar bonding imperfections are obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00804756
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  • 2
    Electronic Resource
    Electronic Resource
    On a quasi-stationary model of debonding processes in layered composites (1988)
    Springer
    Archive of applied mechanics 58 (1988), S. 403-412 
    Details
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Übersicht In diesem Aufsatz schlagen wir ein mathematisches Modell von Verbundwerkstoffen, die nur begrenzte Belastungen übertragen, vor. Es wird bewiesen, daß die Randwertprobleme zur gewissen Semi-Variations-Ungleichungen führen.
    Notes: Summary The main aim of this contribution is to propose a mathematical model of layered composites in which the interlaminar bonding material is assumed to sustain only restricted values of the interlaminar stresses. It is shown that the boundary value problems for the quasi-stationary debonding processes lead to certain sequences of hemi-variational inequalities. The existence theorem is established.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01342337
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The dynamic modelling of elastic wavy plates (1996)
    Springer
    Archive of applied mechanics 66 (1996), S. 177-186 
    Details
    ISSN: 1432-0681
    Keywords: shell ; modelling ; dynamics ; periodic structure ; homogenization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary The aim of the contribution is to formulate an engineering theory describing the dynamic behaviour of periodically waved shell-like elements, called wavy plates. On the basis of the proposed theory, the effect of coupling between free macro- and micro-vibrations of a wavy plate is investigated. It is also shown that the homogenized model of wavy plates (obtained by scaling down the wavelength parameters) cannot be applied in the analysis of dynamic problems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00795219
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of interlaminar imperfections on a behaviour of laminated plates (1994)
    Springer
    Archive of applied mechanics 64 (1994), S. 286-293 
    Details
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Übersicht Der in [1] beschriebene Einfluß der Zwischenschichtdefekte auf das Verhalten geschichteter Schalen wird hier speziell für den Sonderfall geschichteter Platten studiert. Das Problem wird unter Berücksichtigung der linearen Elastizitätstheorie und der Theorie der kleinen Verschiebungsgradienten betrachtet. Die erhaltenen Ergebnisse werden anhand eines Beispiels illustriert.
    Notes: Summary The effect of interlaminar bonding imperfections on behaviour of shells, investigated in [1], is elaborated here for a special case of laminated plates. The problem is stated for linear elastic materials, within the small displacement gradient theory. The obtained results are ilustrated by an example.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00789126
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  • 5
    Electronic Resource
    Electronic Resource
    On the microdynamics of composite plates (1995)
    Springer
    Archive of applied mechanics 66 (1995), S. 126-133 
    Details
    ISSN: 1432-0681
    Keywords: composite plates ; periodic structure ; refined scaling ; microdynamics correction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary The subject of the contribution is an investigation of elastic composite plates with a microperiodic structure along the plate's midsurface. The computational models of the plates are largely based on the homogenization procedures leading to equations with constant coefficients. However, the homogenization theories neglect the microstructure length-scale effect on the plate's dynamic behaviour. The objective of this research is to formulate and investigate a refined theory of the composite plates under consideration, which would describe the microdynamic plate behaviour caused by the microstructure. The possible applications of the proposed theory are shown by an example.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00786695
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  • 6
    Electronic Resource
    Electronic Resource
    On the dynamics of combined plane periodic structures (2000)
    Springer
    Archive of applied mechanics 70 (2000), S. 387-398 
    Details
    ISSN: 1432-0681
    Keywords: Key words Stiffened plates ; periodic structure ; continuum model
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary The aim of this contribution is to obtain and apply an averaged model of an elastic structure composed of a periodic system of densely spaced thin walls with rigid joints fastened to a thin plate. Considerations are restricted to problems in which in-plane deformations of a plate and cylindrical bending of walls in the plate midplane can be expected. It is shown that the resulting model constitutes a certain dynamic generalization of the plane Cosserat medium. The conditions under which this model becomes isotropic are also derived and the dispersion effect on the wave propagation is investigated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004199900070
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  • 7
    Electronic Resource
    Electronic Resource
    Discrete and continuum modelling of delamination processes (1990)
    Springer
    Archive of applied mechanics 60 (1990), S. 335-344 
    Details
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Übersicht Eine chaotische Verteilung von gelockerten Bereichen von den Trennflächen von Schichtwerkstoffen wird durch eine Dichtefunktion der Schichtentrennung modelliert. Diese Darstellung ermöglicht die Formulierung eines phänomenologischen diskreten Modells von Schichtentrennungsvorgängen. Für vielschichtige, periodische Verbundwerkstoffe wird das diskrete Modell durch ein kontinuierliches Modell approximiert.
    Notes: Summary The chaotic distributions of delaminated surface elements in laminates are described by a macrodelamination density function. Using this concept a phenomenological discrete mathematical model of the interlaminar debonding processes is proposed. For multilayered periodic composites the discrete model is approximated by a certain continuum model of delamination processes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00538834
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  • 8
    Electronic Resource
    Electronic Resource
    Corrected 2D-theories for composite plates (1994)
    Springer
    Acta mechanica 103 (1994), S. 145-155 
    Details
    ISSN: 1619-6937
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary The objective of the paper is to propose a simple method of formulation of 2D-theories for composite thin plates made of an arbitrary inhomogeneous linear-elastic material. The effect of inhomogeneity on the plate stiffness will be described by means of extra unknowns, called correctors, which have to satisfy a system of linear algebraic equations. The elimination of correctors can be performed in explicit form and leads to the formulas for effective stiffnesses of the plates under consideration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01180223
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  • 9
    Electronic Resource
    Electronic Resource
    On the modelling of thermo-unelastic periodic composites: Microlocal parameter theory (1989)
    Springer
    Acta mechanica 80 (1989), S. 81-94 
    Details
    ISSN: 1619-6937
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary In the paper it is shown how to formulate certain homogenized models of thermoelastic-unelastic periodic composites under large strains and large temperature gradients. The models obtained describe local stresses and heat fluxes in every material component in term of averaged displacement and temperature fields and certain extra unknowns called microlocal parameters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01178181
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  • 10
    Electronic Resource
    Electronic Resource
    On the modelling of heat conduction problem in laminated bodies (1987)
    Springer
    Acta mechanica 65 (1987), S. 223-238 
    Details
    ISSN: 1619-6937
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary The paper deals with the heat conduction modelling problem for micro-periodic composites. The models proposed there take into account certain micromorphic effects resulting from the fine periodic structure of the body. The governing equations describing heatfluxes and temperature distributions in these composites in the nonlinear as well as linear cases have been derived. Two examples of the application of the presented models are detailed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01176884
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    Paper (German National Licenses)
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