TY - GEN

T1 - Study of notch effect and fibre orientation on fatigue strength of short glass fibre reinforced polyamide

AU - Stadler, Gabriel

AU - Primetzhofer, Andreas

AU - Pinter, Gerald

AU - Grün, Florian

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Short fibre reinforced polymer structural components, which are often applied in the automotive sector have, due to innovative lightweight designs in general, complex geometries with many notches. Therefore, the effect of notches interacting with the local fibre orientation on the life time prediction needs to be investigated. By notching injection moulded flat specimen extracted from plates, an directed and known fibre orientation around the notch exists. Fatigue tests have been performed on notched specimen with different notch radii and fibre orientations in order to examine the influence of notch sharpness and the local fibre orientation on high cycle fatigue. The results show an up to 30% higher notch support number in longitudinal specimen, compared to transversal oriented specimen. Moreover it can be shown, that notches decrease the endurable fatigue strength, different, depending on fibre orientation. However the endurable fatigue strength show an increase at specimen with very sharp notches compared to the remeaing, investigated notches.

AB - Short fibre reinforced polymer structural components, which are often applied in the automotive sector have, due to innovative lightweight designs in general, complex geometries with many notches. Therefore, the effect of notches interacting with the local fibre orientation on the life time prediction needs to be investigated. By notching injection moulded flat specimen extracted from plates, an directed and known fibre orientation around the notch exists. Fatigue tests have been performed on notched specimen with different notch radii and fibre orientations in order to examine the influence of notch sharpness and the local fibre orientation on high cycle fatigue. The results show an up to 30% higher notch support number in longitudinal specimen, compared to transversal oriented specimen. Moreover it can be shown, that notches decrease the endurable fatigue strength, different, depending on fibre orientation. However the endurable fatigue strength show an increase at specimen with very sharp notches compared to the remeaing, investigated notches.

KW - Fibre orientation

KW - Life time assessment

KW - Notch effect

KW - Short fibre reinforced polyamide

UR - http://www.scopus.com/inward/record.url?scp=85077562909&partnerID=8YFLogxK

M3 - Conference contribution

SN - 9781510896932

T3 - ECCM 2018 - 18th European Conference on Composite Materials

BT - ECCM 2018 - 18th European Conference on Composite Materials

T2 - 18th European Conference on Composite Materials, ECCM 2018

Y2 - 24 June 2018 through 28 June 2018

ER -