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  • 1
    Monograph available for loan
    Monograph available for loan
    Wave propagation in structures : an FFT-based spectral analysis methodology (1989)
    New York [u.a.] : Springer
    Details Availability
    Call number: M 91.0323
    Type of Medium: Monograph available for loan
    Pages: X, 258 S. : Ill.
    ISBN: 0387970789
    Language: German
    Location: Upper compact magazine
    Branch Library: GFZ Library
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  • 2
    Electronic Resource
    Electronic Resource
    Mechanical and optical characterization of a photoviscoplastic material (1979)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 24 (1979), S. 1295-1304 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The mechanical and optical properties of a polyester blend over a wide range of strain rates has been investigated for loading and unloading. The mechanical behavior, while being complex, was modeled adequately with a generalization of the four-parameter viscoelastic model. The optical behavior has at least a three-phenomenological coefficient dependence on the mechanical variables. Further, the stress birefringence is of opposite sign to that of the deformation.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1979.070240514
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  • 3
    Electronic Resource
    Electronic Resource
    An interpretation of photoviscoelastic/plastic data (1980)
    Springer
    Experimental mechanics 20 (1980), S. 65-67 
    Details
    ISSN: 1741-2765
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The birefringent effect of viscoelastic and viscoplastic polymeric materials is considered and shown to have separate contributions from the stress, recoverable strain and the permanent deformations. Experimental data for a number of materials are discussed and the procedure for analyzing these data described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02321036
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  • 4
    Electronic Resource
    Electronic Resource
    Determining the size and location of transverse cracks in beams (1995)
    Springer
    Experimental mechanics 35 (1995), S. 272-280 
    Details
    ISSN: 1741-2765
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The spectral element method, which is very suitable for solving inverse dynamic problems, is combined with a stochastic genetic algorithm to give a scheme that can locate and size cracks in structural components. The mechanical model is based on an approach that separates the global structural dynamics from the local crack-tip zone dominated by singular stresses. The global model, consisting of connected waveguides, describes the structural dynamics using spectral elements. The local model, describing the crack-tip behavior, is based on the relation between the stress-intensity factor and the stored strain energy representing the crack region. The results are demonstrated with experimental data from an aluminum beam with a transverse crack.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02319668
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  • 5
    Electronic Resource
    Electronic Resource
    Determining the contact force during the transverse impact of plates (1987)
    Springer
    Experimental mechanics 27 (1987), S. 68-72 
    Details
    ISSN: 1741-2765
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The contact force during the transverse impact of a plate is determined from dynamic strain-gage measurements made on the plate. Experimental results for the impact of an aluminum plate are presented, and comparisons are made with finite-element predictions and measurements from a force transducer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02318866
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  • 6
    Electronic Resource
    Electronic Resource
    A genetic algorithm for determining the location of structural impacts (1994)
    Springer
    Experimental mechanics 34 (1994), S. 37-44 
    Details
    ISSN: 1741-2765
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The spectral-element method, which is very suitable for solving force-identification problems, is combined with a stochastic genetic algorithm to give a scheme that can locate the source of structural impacts. The results are demonstrated with experimental data from the impact of an aluminum beam.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02328440
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  • 7
    Electronic Resource
    Electronic Resource
    Structural mechanics modeling of the impact of a double cantilever beam (1986)
    Springer
    International journal of fracture 76 (1986), S. 311-326 
    Details
    ISSN: 1573-2673
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A Global/Local model is developed for the calculation of dynamic stress intensity history resulting from the impact of a double cantilever beam. The model separates the Global structural dynamics from the Local crack tip zone dominated by singular stresses. The Global model, consisting of connected waveguides, describes the structural dynamics using spectral elements. The Local model, describing the crack tip behavior, is based on an application of the J-integral that converts the dynamic structural resultants directly into strain energy release rate. Previous work used this approach successfully for pure mode II deformation; the present paper extends the modeling to mode I and mixed mode deformation. Of special concern is the local modeling of the elasticity and mass in the vicinity of the crack tip; structural mechanics modeling is combined with Hamilton's principle to properly address this question. The accuracy of this approach is assessed by comparing it to a two dimensional finite element analysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00039780
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  • 8
    Electronic Resource
    Electronic Resource
    Frequency domain stress intensity calibration of damped cracked panels (1993)
    Springer
    International journal of fracture 61 (1993), S. 123-130 
    Details
    ISSN: 1573-2673
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract This paper discusses two schemes for doing finite element K calibration in the frequency domain. The baseline scheme uses the definition of K as a limit toward the crack tip. The limiting process requires using a very fine mesh around the crack tip making the scheme computationally very expensive. It is shown that the behavior of K as a function of frequency is very similar to a modal response. Taking advantage of this, a more efficient scheme involves a modal analysis of the cracked sheet and scaling the response to that of the static stress intensity. In this way, only a static K calibration need be performed. All the examples shown are for a frequency range spanning multiple resonances and with two levels of damping.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00012452
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  • 9
    Electronic Resource
    Electronic Resource
    An experimental method for determining the location and time of initiation of an unknown dispersing pulse (1987)
    Springer
    Experimental mechanics 27 (1987), S. 229-233 
    Details
    ISSN: 1741-2765
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract It is shown that the phase information obtained from a spectral analysis of dispersive waves can be used to locate the source of the waves. Experimental results for dispersive flexural waves in beams are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02318087
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  • 10
    Electronic Resource
    Electronic Resource
    On a nonlinearity in flow birefringence (1982)
    Springer
    Experimental mechanics 22 (1982), S. 37-38 
    Details
    ISSN: 1741-2765
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Conclusion The nonlinearity observed in the flow-birefringent data can be explained by considering a properly formulated constitutiv relation, and is seen to be a natural consequence of the representation of a tensor function. The optical relation proposed is valid for a general threedimensional flow and, in addition, gives a meaning to the isoclinics in terms of the strain-rate components.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02325702
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