Evaluation and consideration of local specimen material properties in lifetime prediction of short fiber-reinforced PA6T/6I

Publikation: Beitrag in FachzeitschriftArtikelForschungBegutachtung


To exploit the full material potential of short fiber-reinforced PA6T/6I, specific component calculations including anisotropic material behavior is necessary. For this, different failure criteria and fatigue models are used to describe the behavior during a component service life. This paper deals with the determination and consideration of fiber orientations (FOs) for failure criteria and fatigue calculations. Therefore, a novel method to determine FO distributions across injection-molded plates is proposed. The developed method allows a forecast of FOs for different specimen extraction positions and angles on injection-molded plates by using only a few measured reference points. As a result, fatigue models can be calibrated with the strength values and the corresponding FO, calculated for fracture position. The performed tests show a non-negligible influence of failure positions, due to FO distributions along the specimens. So, the FO determination method delivers an improvement in strength values estimation.
Seiten (von - bis)980-990
FachzeitschriftFatigue and Fracture of Engineering Materials and Structures
PublikationsstatusVeröffentlicht - 1 Feb. 2022

Bibliographische Notiz

Funding Information:
This research was funded by Austrian Research Promotion Agency (FFG) grant number 854178. The PCCL is founded by the Austrian Government and the State Governments of Styria, Lower and Upper Austria.

Publisher Copyright:
© 2022 John Wiley & Sons, Ltd.

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