TY - JOUR
T1 - Compressive response of multi-layered thermoplastic composite corrugated sandwich panels
T2 - Modelling and experiments
AU - Chen, Liming
AU - Peng, Shiwei
AU - Liu, Jian
AU - Liu, Houchang
AU - Chen, Liliang
AU - Du, Bing
AU - Li, Weiguo
AU - Fang, Daining
N1 - Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/5/15
Y1 - 2020/5/15
N2 - Multi-layered thermoplastic composite (TPC) corrugated sandwich panels (CSPs) were designed and fabricated from glass fiber reinforced polypropylene prepregs by hot-pressing and hot-melting bonding methods. Quasi-static compressive response including failure deformation modes of TPC CSPs were experimentally and numerically investigated to reveal the effect of layer numbers and core configurations namely regular, perpendicular and symmetrical. For two-layered CSPs, core layers of the regular configuration panels were firstly compressed to overlapping and then failed together, core layers of the perpendicular ones failed step by step. But for the symmetrical configuration, assembly deviations were found to affect the deformation modes sensitively by comparing the experimental and numerical results. Among three configurations, the perpendicular one has the optimal specific energy absorption (SEA) and crushing force efficiency (CFE), while the regular one has the biggest peak crushing force (PCF). Increasing layer number can enhance the SEA and MCF due to the bending of the interlayer face sheets.
AB - Multi-layered thermoplastic composite (TPC) corrugated sandwich panels (CSPs) were designed and fabricated from glass fiber reinforced polypropylene prepregs by hot-pressing and hot-melting bonding methods. Quasi-static compressive response including failure deformation modes of TPC CSPs were experimentally and numerically investigated to reveal the effect of layer numbers and core configurations namely regular, perpendicular and symmetrical. For two-layered CSPs, core layers of the regular configuration panels were firstly compressed to overlapping and then failed together, core layers of the perpendicular ones failed step by step. But for the symmetrical configuration, assembly deviations were found to affect the deformation modes sensitively by comparing the experimental and numerical results. Among three configurations, the perpendicular one has the optimal specific energy absorption (SEA) and crushing force efficiency (CFE), while the regular one has the biggest peak crushing force (PCF). Increasing layer number can enhance the SEA and MCF due to the bending of the interlayer face sheets.
KW - Corrugated sandwich panel
KW - Mechanical property
KW - Multi-layered
KW - Thermoplastic composite
UR - http://www.scopus.com/inward/record.url?scp=85080057122&partnerID=8YFLogxK
U2 - 10.1016/j.compositesb.2020.107899
DO - 10.1016/j.compositesb.2020.107899
M3 - Article
AN - SCOPUS:85080057122
SN - 1359-8368
VL - 189
JO - Composites Part B: Engineering
JF - Composites Part B: Engineering
M1 - 107899
ER -