Comparison of the impact damage resistance of non-hybrid and intra-ply hybrid carbon/E-glass/polypropylene non-crimp thermoplastic composites

Abstract

This study aims to compare the low-velocity impact and post-impact properties of intra-ply hybrid carbon/E-glass/polypropylene non-crimp thermoplastic composites with non-hybrid carbon/PP and E-glass/PP non-crimp thermoplastic composites. Impact test was performed at four energy levels as 15 J, 30 J, 45 J and 60 J. Post-impact properties of hybrid thermoplastic composites were tested by compression after impact method for each energy level to understand the impact damage tolerance of intra-ply hybrid carbon/E-glass/PP non-crimp thermoplastic composites. The effect of hybridization on energy absorption of composites was not significant, while C-scan results showed that the intra-ply hybrid non-crimp thermoplastic composites had smaller impact damage areas in comparison to the non-hybrid samples. Compression and compression after impact tests results confirmed that the intra-ply hybridization increased the toughness of the composite laminates. Also, the residual compression strength/modulus increased with hybridization which indicated to damage tolerance.

Influence of fibre alignments on the mechanical properties of novel Spirograph based non-woven mat composites

“…Quasi-isotropic fibre orientations and spacing between interlacing fibre tows in P3SNW mat laminates were responsible for in-plane elastic behaviour resisting damage propagation and bearing high impact load than WRM mat laminate. 20,31

Figure 11.DWI test results of P3SNW mat reinforced composite laminates. Note: DMI: drop weight impact.

Figure 12.DWI test results of 0°/90° WRM composites.

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“…Quasi-isotropic fibre orientations and spacing between interlacing fibre tows in P3SNW mat laminates were responsible for in-plane elastic behaviour resisting damage propagation and bearing high impact load than WRM mat laminate. 20,31 It is also observed that a peak force in case of SNW composite was greater than WRM composites, due to inplane elastic behaviour and also due to higher fibre content. Also, the shape of peak was smooth and symmetric in case of SNW laminate composite, whereas it was asymmetric and force decelerated in staggered manner, due to occurrence of perforation involving fibre breakage along longitudinal and transverse directions in WRM laminate composite and crack progress with least peak energy.…”

A non‐crimp fabric mechanical characterization for the production of aerospace components

“…27 The need to improve the impact response has also led to the creation of hybrid non-crimp fabric laminates with glass, carbon, and polypropylene fibers. [28][29][30] An important aspect to take into account when using composite materials for structural uses is that of the effects that environmental conditions can have on its performance. Since the stiffness and strength of a composite material decrease with increasing temperature and moisture content, their evaluation is important in structural applications.…”

“…Finally, impact response of carbon/epoxy NCF laminates has been studied, comparing its properties to the properties of woven fabric laminates 27 . The need to improve the impact response has also led to the creation of hybrid non‐crimp fabric laminates with glass, carbon, and polypropylene fibers 28–30 . An important aspect to take into account when using composite materials for structural uses is that of the effects that environmental conditions can have on its performance.…”

Kompozi̇t Malzemeleri̇n Charpy Darbe Testi̇ Sonrasi Ultrasoni̇k C-Scan Yöntemi̇ İle Hasar Anali̇zi̇

“…Literatürde, çeşitli hataların ve hasarların (düşük hızlı darbe testi, üretim hataları ve gömülü kusurlar) analizi için karbon/epoksi ve cam/epoksi kompozitler başta olmak üzere birçok kompozit malzemenin incelenmesinde ultrasonik C-tarama tekniğinin kullanıldığı görülmektedir (Abdullah, 2021;Arhamnamazi et al, 2019;Hasiotis et al, 2011;Iskandarani, 2019;Santos et al, 2021;Selver et al, 2021;Tabrej et al, 2021;Tuo et al, 2019;Yolacan, 2018). Bahsedilen yöntemlerin aksine Charpy testi sonrası çoğunlukla yapı bütünlüğünün korunamaması nedeniyle sayısal modelleme ve kırılan parçaların mikroskobik görüntüleri üzerinden hasar analizi yapılmaktadır.…”