In design engineering of short fiber reinforced components a given material can be used for two or more parts of the same system having different wall thicknesses. The thickness, together with numerous parameters, has an impact on the cyclic behavior of short fiber reinforced thermoplastics under fatigue loading. This research analyses and compares the fiber orientation by µCT as well as the quasi-static and cyclic behavior of two sets of specimens with 1.6 and 3 mm wall thicknesses made of PA6T/6I GF50. Fatigue criteria based on cyclic mean strain rate or on cyclic creep energy density are evaluated to assess the most accurate and independent of the thickness.
Material characterization and fatigue data correlation of short fibre composites: effects of thickness, load ratios and fibre orientation at elevated temperatures
Martulli L. M.;Bernasconi A.
2022-01-01
Abstract
In design engineering of short fiber reinforced components a given material can be used for two or more parts of the same system having different wall thicknesses. The thickness, together with numerous parameters, has an impact on the cyclic behavior of short fiber reinforced thermoplastics under fatigue loading. This research analyses and compares the fiber orientation by µCT as well as the quasi-static and cyclic behavior of two sets of specimens with 1.6 and 3 mm wall thicknesses made of PA6T/6I GF50. Fatigue criteria based on cyclic mean strain rate or on cyclic creep energy density are evaluated to assess the most accurate and independent of the thickness.| File | Dimensione | Formato | |
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