Evaluation and consideration of local specimen material properties in lifetime prediction of short fiber-reinforced PA6T/6I
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In: Fatigue and Fracture of Engineering Materials and Structures, Vol. 45.2022, No. 4, 13634, 01.02.2022, p. 980-990.
Research output: Contribution to journal › Article › Research › peer-review
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TY - JOUR
T1 - Evaluation and consideration of local specimen material properties in lifetime prediction of short fiber-reinforced PA6T/6I
AU - Stadler, Gabriel
AU - Primetzhofer, Andreas
AU - Pinter, Gerald
AU - Grün, Florian
N1 - Publisher Copyright: © 2022 John Wiley & Sons, Ltd.
PY - 2022/2/1
Y1 - 2022/2/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85123958851&partnerID=8YFLogxK
U2 - 10.1111/ffe.13634
DO - 10.1111/ffe.13634
M3 - Article
AN - SCOPUS:85123958851
VL - 45.2022
SP - 980
EP - 990
JO - Fatigue and Fracture of Engineering Materials and Structures
JF - Fatigue and Fracture of Engineering Materials and Structures
SN - 8756-758X
IS - 4
M1 - 13634
ER -
