Fatigue design of highly loaded short-glass-fibre reinforced polyamide parts in engine compartments

The fatigue strength behaviour of a short-glass-fibre reinforced polyamide PA66-GF35 was investigated in detail. The consideration of influencing variables like notches, fibre orientation, temperature, mean-stress and spectrum loading enable the fatigue design of high loaded plastic parts in engine...

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Bibliographic Details
Published in:International journal of fatigue 2008-07, Vol.30 (7), p.1279-1288
Main Authors: Sonsino, C.M., Moosbrugger, E.
Format: Article
Language:English
Subjects:
Applied sciences
Constant and variable amplitude loading
Exact sciences and technology
Fatigue
Fatigue strength
Fibre reinforced metals
Highly stressed material volume
Mean-stress
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Notch effect
Powder metallurgy. Composite materials
Production techniques
Temperature
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Summary:The fatigue strength behaviour of a short-glass-fibre reinforced polyamide PA66-GF35 was investigated in detail. The consideration of influencing variables like notches, fibre orientation, temperature, mean-stress and spectrum loading enable the fatigue design of high loaded plastic parts in engine compartments. A design method was developed which is based on FE calculation of the maximum local stress, the appertaining stress gradient and the highly stressed material volume. The method was verified successfully by the example of a fuel rail.
ISSN:0142-1123
1879-3452
DOI:10.1016/j.ijfatigue.2007.08.017