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  • 1
    Electronic Resource
    Electronic Resource
    Thrust Fault Scarp in the Western Australian Shield (1969)
    [s.l.] : Nature Publishing Group
    Nature 223 (1969), S. 701-703 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The Meckering earthquake (October 14, 1968) produced an unusually definite thrust fault ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/223701a0
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  • 2
    Electronic Resource
    Electronic Resource
    THE EFFECTS OF FREQUENCY AND R-RATIO ON FATIGUE CRACK GROWTH BEHAVIOUR IN Al-Li-Cu-Mg ALLOY (8090) PLATE (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— The effects of frequency and R-ratio on the fatigue crack growth rate of the Al-Li-Cu-Mg alloy 8090 have been assessed in air. Compact tension test pieces (B= 25 mm) were tested at constant Pmax using a triangular waveform (CA) and the crack length was monitored by a four-wire pulsed potential drop technique. Crack closure measurements were made during the test by a front face compliance technique.The crack growth rate was found to be dominated by the high level of crack closure and the fatigue fracture morphology. Two fracture types were identified; a highly deviated “shear” fracture mode which was in competition with a macroscopically flat “tensile” fracture mode. The tensile fracture mode was predominant at low test frequency, high R-ratio and short crack lengths whereas the shear mode was predominant at high frequency, low R-ratio and long crack lengths. The transition from tensile to shear mode was primarily controlled by the effective stress intensity factor range, ΔKeff.The effect of loading variables on the transition was explained in terms of the diffusion distance of hydrogen relative to the effective cyclic plastic zone diameter. Test piece thickness had a secondary effect on the transition and this was explained in terms of gas transport considerations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1460-2695.1992.tb01271.x
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  • 3
    Electronic Resource
    Electronic Resource
    Analysis of push-out test data based on interfacial fracture energy (1999)
    Springer
    Journal of materials science 10 (1999), S. 863-868 
    Details
    ISSN: 1573-4838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Technology
    Notes: Abstract Push-out testing is frequently used to assess the interfacial shear strength developed at a bone–biomaterial interface during in vivo experiments. The aim of the present research was to assess the in vivo performance of a novel substrate/coating combination and to introduce a more rigorous fracture mechanics analysis of the push-out test data. An adhesively bonded hydroxyapatite (HA), and a Ti-6Al-4V alloy plasma sprayed with HA, were implanted in female New Zealand white rabbits for up to 6 months in duration. After death, push-out tests were carried out and the shear strength was calculated in the conventional way, together with microscopical examination of crack paths. A finite element model was drawn up representing four potential failure mechanisms. The measured “failure shear strengths” in conventional analysis were approximately equal for the two coatings. However, J C at failure calculated from the model was 210 J m-2 at the novel adhesively bonded HA/bone interface and 5 J m-2 at a conventional titanium/plasma-sprayed HA interface. The conventional shear strength approach is strongly test dependent, and we believe that the fracture energy approach represents a more rigorous analysis of the real failure criterion in the implant/host tissue structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008929201918
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  • 4
    Electronic Resource
    Electronic Resource
    Layered, adhesively bonded hydroxyapatite coatings for orthopaedic implants (1994)
    Springer
    Journal of materials science 5 (1994), S. 495-499 
    Details
    ISSN: 1573-4838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Technology
    Notes: A method of producing layered, adhesively bonded hydroxyapatite coatings is described. The coatings have a flexible polymeric interlayer which can improve load transfer from the implant to the bone, and a hydroxyapatite-rich surface which can provide mechanical interlocking with the bone. The coatings have been characterized using a number of methods including optical and electron microscopy, mechanical testing and finite element analysis. Some ways in which the coatings could be used to produce orthopaedic implants with improved mechanical and biological compatibility are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00058990
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  • 5
    Electronic Resource
    Electronic Resource
    Numerical optimization of the design of a coated, cementless hip prosthesis (1994)
    Springer
    Journal of materials science 5 (1994), S. 507-510 
    Details
    ISSN: 1573-4838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Technology
    Notes: A numerical optimization technique was used to improve the design of a coated, cementless hip prosthesis. The prosthesis was represented by a simple one-dimensional finite element model, and its diameter and coating thickness at various points were altered so as to minimize stress shielding while keeping implant-bone interface stresses within realistic limits. The resulting design showed a very large reduction in both stress shielding and interface stresses compared to conventional designs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00124881
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  • 6
    Electronic Resource
    Electronic Resource
    Characterization of titanium alloy implant surfaces with improved dissolution resistance (1996)
    Springer
    Journal of materials science 7 (1996), S. 323-329 
    Details
    ISSN: 1573-4838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Technology
    Notes: Abstract The present work sets out to investigate the structure and chemistry of surface treated oxides (either aged in boiling water or air-heated) with improved dissolution resistance compared to conventionally passivated surfaces. X-ray photoelectron spectroscopy (XPS) has demonstrated a significant reduction in oxidized aluminium associated with an ageing-based surface treatment. Angle-dependent XPS has revealed an increase in amphoteric-OH surface sites for the thermal treatments. Atomic force microscopy (AFM) investigation suggests that these sites play a role in the improved proteinadsorption properties of these surfaces. These observations form the basis of a model which describes the influence of surface oxide on the kinetics of metal ion dissolution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00154543
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  • 7
    Electronic Resource
    Electronic Resource
    δ′ precipitation in Al-Li-Mg-Cu-Zr alloys (1984)
    Springer
    Journal of materials science 3 (1984), S. 829-834 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00727987
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  • 8
    Electronic Resource
    Electronic Resource
    Response of fibre reinforced aluminium–lithium laminates to different fatigue conditions (1997)
    Springer
    Journal of materials science 32 (1997), S. 6555-6560 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Under fatigue conditions fibre reinforced aluminium–lithium laminates do not respond in the same manner as monolithic aluminium alloys. The variation of fatigue crack growth rates with initial loading condition has been examined for both carbon and glass fibre reinforced laminates, and compared with the behaviour of unreinforced 8090 aluminium–lithium alloy for a range of conditions (different initial nominal stress intensity factor range, load range and reversed loading). During fatigue, cracks grow in the metal layers of these laminates whilst the fibres in the crack wake remain intact, bridging the crack faces. The fibre bridging mechanism, inherent in this laminate system, reduces the fatigue crack growth rate. The magnitude of the bridging effect appears to be inversely related to the applied load range. This relationship can account for the behaviour observed in the performed experiments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018619512832
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  • 9
    Electronic Resource
    Electronic Resource
    Hardness profiles of solution treated SiCp-reinforced Al-Li-Cu-Mg-Zr sheet (1995)
    Springer
    Journal of materials science 14 (1995), S. 1767-1769 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00271002
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  • 10
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    Unknown
    Travel Times and Amplitudes from Explosions in Northern Australia (1972)
    Oxford University Press
    Details
    Publication Date: 1972-06-01
    Print ISSN: 0956-540X
    Electronic ISSN: 1365-246X
    Topics: Geosciences
    Published by Oxford University Press on behalf of The Royal Astronomical Society.
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