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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 13 (1982), S. 269-273 
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Die Modifizierung der Mischungsregel zur näherungsweisen Ermittlung von VerbundwerkstoffestigkeitenDie Festigkeiten von Verbundwerkstoffen mit phaserförmigen Einlagerungen liegen in der Regel niedriger als die über die Mischungsregel berechneten Werte, was zum großen Teil auf Defekte wie mangelnde Phasenbindung, Poren und Risse zurückgeführt werden kann. Eine empirische Beziehung, ermittelt über rechnergestützte Anpassung an experimentelle Daten, ermöglicht die praktische Abschätzung von solchen Festigkeiten mit einer Genauigkeit von 30. Es zeigt sich, daß Defekte in den Fasern die resultierende Verbundwerkstoffestigkeit mehr beeinflussen, als solche in der Matrixphase.
    Notes: Strengths of a composite when determined by actual tests shows a lower value than those obtained through theoretical estimation by applying the simple rule of mixtures. This discrepancy has been attributed largely to the presence of defects in the composite like debonding, porosities, cracks etc. To establish a design criteria to a more practically closer strength values an empirical formulae is presented. The formulae accounts for defect level upto 30%. The results were obtained through computational facilities using IBM (360/44) Computer. The drop in strength with increasing defect level is shown to occur and the effect is more predominant when defects are more in fibres than in matrix.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
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