TY - GEN
T1 - EXPERIMENTAL ANALYSIS OF GLASS FIBRE REINFORCED NYLON-66 UNDER COMBINED LOADING AT LOW AND HIGH RATES OF STRAIN
AU - Xu, Yuan
AU - Zhou, Junyi
AU - Quino, Gustavo
AU - Pellegrino, Antonio
PY - 2022/6/30
Y1 - 2022/6/30
N2 - Reinforced polymer composites are increasingly used in various industrial applications because of their lightweight and superior stiffness-strength combination. In these engineering practices, composites are commonly subjected to multiaxial loads and behave at strain rates ranging from low to high. However, most existing studies that focus on the mechanical characterisation of composites are limited to single loading modes involving tensile, flexural, compressive, and fatigue. The multiaxial behaviour of 30% glass fibre reinforced nylon-66 (PA66-GF30) is investigated in this study through combined tension-torsion experiments. A thin-walled tube geometry of specimens and gripping fixtures are designed to enable appropriate failure of the material under tensile and torsional loading. The quasi-static experimental data depict the multiaxial failure of PA66-GF30 subjected to different stress states including pure shear, combined shear-tension, and plain strain tension. High-rate combined loading experiments are implemented using a novel split Hopkinson tension-torsion bar system to unravel the rate dependence.
AB - Reinforced polymer composites are increasingly used in various industrial applications because of their lightweight and superior stiffness-strength combination. In these engineering practices, composites are commonly subjected to multiaxial loads and behave at strain rates ranging from low to high. However, most existing studies that focus on the mechanical characterisation of composites are limited to single loading modes involving tensile, flexural, compressive, and fatigue. The multiaxial behaviour of 30% glass fibre reinforced nylon-66 (PA66-GF30) is investigated in this study through combined tension-torsion experiments. A thin-walled tube geometry of specimens and gripping fixtures are designed to enable appropriate failure of the material under tensile and torsional loading. The quasi-static experimental data depict the multiaxial failure of PA66-GF30 subjected to different stress states including pure shear, combined shear-tension, and plain strain tension. High-rate combined loading experiments are implemented using a novel split Hopkinson tension-torsion bar system to unravel the rate dependence.
KW - Combined tension-torsion
KW - Glass fibre reinforced nylon-66
KW - Hopkinson bar
KW - Rate dependence
KW - Thin-walled tube specimen
UR - http://www.scopus.com/inward/record.url?scp=85149183280&partnerID=8YFLogxK
M3 - Chapter in a published conference proceeding
AN - SCOPUS:85149183280
T3 - ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability
SP - 240
EP - 247
BT - ECCM - Proceedings of the 20th European Conference on Composite Materials
A2 - Vassilopoulos, Anastasios P.
A2 - Michaud, Veronique
PB - Composite Construction Laboratory (CCLab), Ecole Polytechnique Federale de Lausanne (EPFL)
CY - Lausanne, Switzerland
T2 - 20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022
Y2 - 26 June 2022 through 30 June 2022
ER -
