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  • 1
    Electronic Resource
    Electronic Resource
    WAVEFORMS IN FRETTING FATIGUE (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Fatigue & fracture of engineering materials & structures 11 (1988), S. 0 
    Details
    ISSN: 1460-2695
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract— The magnitudes and directions of the frictional forces must be considered in any fracture mechanics analysis of crack growth under fretting fatigue conditions. A simple nonlinear friction model has been developed which relates the waveforms of the frictional forces to those of the applied forces when fretting occurs. It is shown that the waveforms are different in shape and that periods of dwell and phase shifts may occur in the frictional forces. These differences can significantly affect the rate of growth of cracks and hence life prediction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1460-2695.1988.tb01396.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    BOUNDARY ELEMENT ANALYSIS OF CRACK INTERSECTION, INITIATION AND GROWTH AT PIN LOADED HOLES (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Fatigue & fracture of engineering materials & structures 18 (1995), S. 0 
    Details
    ISSN: 1460-2695
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The dual boundary element method for the analysis of cracks in linear elastic materials has been previously generalised by the authors to allow for automatic remeshing when crack tips intersect other cracks or boundaries, and initiation and growth of small cracks at positions of high stress concentration. The new cracks are assumed to result from sudden events such as an overload or the subsequent stress redistribution when cracks intersect other cracks or holes.In this paper a crack at the edge of one hole in a row of pin-loaded holes is investigated; various values are considered for the stress at which new cracks may initiate. Two rows of aligned or staggered holes are examined also. The spacing between the holes was typical for lines of holes in overlap joints in plates. For the same load transfer between the plates, new cracks are initiated less readily and grow more slowly for a double row of aligned holes than for a single row or for staggered rows.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1460-2695.1995.tb00919.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    “CRACK LINE AND EDGE GREEN'S FUNCTION FOR STRESS INTENSITY FACTORS OF INCLINED EDGE CRACKS” (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Fatigue & fracture of engineering materials & structures 16 (1993), S. 0 
    Details
    ISSN: 1460-2695
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1460-2695.1993.tb00757.x
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    “CRACK LINE AND EDGE GREEN'S FUNCTION FOR STRESS INTENSITY FACTORS OF INCLINED EDGE CRACKS” (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Fatigue & fracture of engineering materials & structures 16 (1993), S. 0 
    Details
    ISSN: 1460-2695
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1460-2695.1993.tb00758.x
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    CRACK-LINE AND EDGE GREEN'S FUNCTIONS FOR STRESS INTENSITY FACTORS OF INCLINED EDGE CRACKS (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Fatigue & fracture of engineering materials & structures 15 (1992), S. 0 
    Details
    ISSN: 1460-2695
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract— Fretting loads on the surfaces of structural components can cause accelerated growth of short cracks. The rate of growth will depend on the combined stress intensity factor resulting from both remote and local loading. Many stress intensity factor solutions are available for remote loading, but solutions for arbitrary fretting loads are not readily accessible. In this paper accurate crack-line Green's functions are obtained from a boundary element analysis and then used to develop the Green's functions for loads on the edge of a half-plane containing a slant crack at various angles to the edge. These latter Green's functions can be used to obtain stress intensity factors for arbitrary stresses (normal or shear) on the edge of the half-plane without further stress analysis; simple integration procedures are all that is required.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1460-2695.1992.tb01286.x
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  • 6
    Electronic Resource
    Electronic Resource
    THE EFFECT OF FINAL FRICTION COEFFICIENT ON FRETTING FATIGUE WAVEFORMS (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Fatigue & fracture of engineering materials & structures 12 (1989), S. 0 
    Details
    ISSN: 1460-2695
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract— The waveforms of the frictional forces and the relationship between the frictional forces and the applied forces are derived for a fretting fatigue model in which the coefficient of friction is not constant. This study is a continuation of a previous one in which it was assumed that the coefficient of friction was a constant. In this new model it is assumed that the coefficient of friction between the rubbing surfaces is initially zero and slowly increases to a constant value during the early cycles of the fatigue life. The consequences of this change are examined and the results from the two models compared. It is observed that the two models give different frictional forces if the deformation of the surfaces is elastic, but are identical when non-linear macroslip occurs on both loading and unloading.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1460-2695.1989.tb00529.x
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    The influence of elastic waves on dynamic stress intensity factors (three-dimensional problems) (1996)
    Springer
    Archive of applied mechanics 66 (1996), S. 385-394 
    Details
    ISSN: 1432-0681
    Keywords: dynamic SIF ; 3D problem ; fundamental solution ; elastic waves ; rectangular and elliptic flat cracks
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary The fundamental solutions of the displacement discontinuity for three-dimensional problems in Laplace space are deduced in thsi paper. The displacement discontinuity method and the equivalent stress method were combined and used to determine dynamic stress intensity factors for three-dimensional time-dependent crack problems. The stress intensity factors were calcualted for dynamically loaded cracks with rectangular, circular, and elliptical crack fronts. The influence of elasticity waves (in particular surface waves) on the magnitude of the stress intensity factor and on the displacement of the crack surfaces was analysed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00803673
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    The influence of elastic waves on dynamic stress intensity factors (two-dimensional problems) (1996)
    Springer
    Archive of applied mechanics 66 (1996), S. 326-335 
    Details
    ISSN: 1432-0681
    Keywords: dynamic stress intensity ; boundary integral equation ; indirect BEM ; Laplace transform ; elastic waves
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary In this paper, an indirect boundary integral equation method for the solution of dynamic crack problems is presented. The Laplace transform method is used to derive the fundamental solutions for the opening mode (mode I) and the sliding mode (mode II) displacement discontinuity. Accurate dynamic stress intensity factorsK N (t) (N=I,II) resulting from different time-dependent loads on the crack surface are obtained. The specific influences of the various elastic waves on the stress intensity factors can be clearly seen from the results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00795249
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    The influence of elastic waves on dynamic stress intensity factors (two-dimensional problems) (1996)
    Springer
    Archive of applied mechanics 66 (1996), S. 326-335 
    Details
    ISSN: 1432-0681
    Keywords: Key words dynamic stress intensity ; boundary integral equation ; indirect BEM ; Laplace transform ; elastic waves
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary  In this paper, an indirect boundary integral equation method for the solution of dynamic crack problems is presented. The Laplace transform method is used to derive the fundamental solutions for the opening mode (mode I) and the sliding mode (mode II) displacement discontinuity. Accurate dynamic stress intensity factors resulting from different time-dependent loads on the crack surface are obtained. The specific influences of the various elastic waves on the stress intensity factors can be clearly seen from the results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00795249
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    The influence of elastic waves on dynamic stress intensity factors (three-dimensional problems) (1996)
    Springer
    Archive of applied mechanics 66 (1996), S. 385-394 
    Details
    ISSN: 1432-0681
    Keywords: Key words dynamic SIF ; 3D problem ; fundamental solution ; elastic waves ; rectangular and elliptic flat cracks
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary  The fundamental solutions of the displacement discontinuity for three-dimensional problems in Laplace space are deduced in this paper. The displacement discontinuity method and the equivalent stress method were combined and used to determine dynamic stress intensity factors for three-dimensional time-dependent crack problems. The stress intensity factors were calculated for dynamically loaded cracks with rectangular, circular, and elliptical crack fronts. The influence of elasticity waves (in particular surface waves) on the magnitude of the stress intensity factor and on the displacement of the crack surfaces was analysed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00803673
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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