TY - JOUR

T1 - Crushing response of CFRP and KFRP composite corrugated tubes to quasi-static slipping axial loading

T2 - Experimental investigation and numerical simulation

AU - Alkhatib, F.

AU - Mahdi, E.

AU - Dean, A.

N1 - Funding Information: The authors would like to acknowledge the financial support of the Qatar National Research Fund (a part of the Qatar Foundation) through the National Priorities Research Program NPRP 5-068-2-024.

PY - 2020/8/15

Y1 - 2020/8/15

N2 - In this article, the energy absorption capability and crushing behavior of composite corrugated tubes have been studied experimentally and numerically under quasi-static axial slipping crushing loading. Five corrugations with angles ranging between 35° and 55° with 5° increment have been studied. Two different unidirectional fibers have been used; CFRP and KFRP and the corrugated tubes were fabricated by the wet filament winding process. Firstly, the corrugated tubes were experimentally tested. The slipping-force-stroke curves were obtained and failure modes have been analyzed. Based on the obtained curves, the calculated crashworthiness parameters were evaluated and presented. Scanning electron microscopy (SEM) images were taken to gain further insight into the experimental results. Secondly, LS-DYNA finite element code was used to numerically analyze the crushing response of the composite corrugated tubes. Mesh optimization and parametric study for the failure modeling parameters of the material model MAT 054 were carried out. The simulation results showed very good agreement with the experimental observations.

AB - In this article, the energy absorption capability and crushing behavior of composite corrugated tubes have been studied experimentally and numerically under quasi-static axial slipping crushing loading. Five corrugations with angles ranging between 35° and 55° with 5° increment have been studied. Two different unidirectional fibers have been used; CFRP and KFRP and the corrugated tubes were fabricated by the wet filament winding process. Firstly, the corrugated tubes were experimentally tested. The slipping-force-stroke curves were obtained and failure modes have been analyzed. Based on the obtained curves, the calculated crashworthiness parameters were evaluated and presented. Scanning electron microscopy (SEM) images were taken to gain further insight into the experimental results. Secondly, LS-DYNA finite element code was used to numerically analyze the crushing response of the composite corrugated tubes. Mesh optimization and parametric study for the failure modeling parameters of the material model MAT 054 were carried out. The simulation results showed very good agreement with the experimental observations.

KW - CFRP

KW - Corrugated tubes

KW - Energy absorption

KW - Finite ELement Method (FEM)

KW - KFRP

KW - Slipping axial crushing

UR - http://www.scopus.com/inward/record.url?scp=85083820536&partnerID=8YFLogxK

U2 - 10.1016/j.compstruct.2020.112370

DO - 10.1016/j.compstruct.2020.112370

M3 - Article

AN - SCOPUS:85083820536

VL - 246

JO - Composite structures

JF - Composite structures

SN - 0263-8223

M1 - 112370

ER -