TY - GEN
T1 - LOCAL DEFECT FORMATION IN SHORT GLASS FIBRE REINFORCED POLYMERS - MICRO-MECHANICAL SIMULATIONS AND INTERRUPTED IN-SITU EXPERIMENTS
AU - Maurer, Julia
AU - Krölling, Denise
AU - Salaberger, Dietmar
AU - Jerabek, Michael
AU - Kastner, Johann
AU - Major, Zoltán
N1 - Publisher Copyright:
© 2023 The Author(s).
PY - 2023/10/11
Y1 - 2023/10/11
N2 - Discontinuous fibre reinforced polymers are widely used in various industry sectors and often replace conventional materials, due to lower production costs and their lightweight structure. For improvement of the component design, detailed knowledge of the failure mechanisms are necessary. To better understand the defect formation and thus the micro-mechanics, the strain behaviour in single fibres was analysed by micro-mechanical simulations of Representative Volume Elements (RVE). Therefore, selected fibres - similar orientated as in the real structure - were chosen for detailed analysis. Additionally, the defect formation next to selected fibres was investigated by X-ray computed tomography (CT). Furthermore, the critical fibre length was estimated based on the protruding fibre length of the fracture surface. Overall the simulation results correspond to theory. However, the detailed local inspection of the experimental volume data showed a rather strong influence of neighbouring fibres.
AB - Discontinuous fibre reinforced polymers are widely used in various industry sectors and often replace conventional materials, due to lower production costs and their lightweight structure. For improvement of the component design, detailed knowledge of the failure mechanisms are necessary. To better understand the defect formation and thus the micro-mechanics, the strain behaviour in single fibres was analysed by micro-mechanical simulations of Representative Volume Elements (RVE). Therefore, selected fibres - similar orientated as in the real structure - were chosen for detailed analysis. Additionally, the defect formation next to selected fibres was investigated by X-ray computed tomography (CT). Furthermore, the critical fibre length was estimated based on the protruding fibre length of the fracture surface. Overall the simulation results correspond to theory. However, the detailed local inspection of the experimental volume data showed a rather strong influence of neighbouring fibres.
KW - digital volume correlation
KW - micro-mechanical simulation
KW - Short fibre reinforced polymer
KW - X-ray computed tomography
UR - http://www.scopus.com/inward/record.url?scp=85179160042&partnerID=8YFLogxK
U2 - 10.14311/APP.2023.42.0061
DO - 10.14311/APP.2023.42.0061
M3 - Conference contribution
AN - SCOPUS:85179160042
T3 - Acta Polytechnica CTU Proceedings
SP - 61
EP - 66
BT - 18th Youth Symposium on Experimental Solid Mechanics, YSESM 2023
A2 - Kytyr, Daniel
A2 - Doktor, Tomas
A2 - Zlamal, Petr
PB - Czech Technical University in Prague
T2 - 18th Youth Symposium on Experimental Solid Mechanics, YSESM 2023
Y2 - 11 June 2023 through 14 June 2023
ER -