Impact damage and CAI strength of a woven CFRP material with fire retardant properties

Giannopoulos, Ioannis K.; Theotokoglou, Efstathios E.; Zhang, Xiang

doi:10.1016/j.compositesb.2016.01.041

Cited by 26 publications

(18 citation statements)

References 25 publications

(27 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As discussed in the next paragraph, SEM analysis of samples tested at higher energy, the change in slope could be linked to fibre fracture and delamination. Similar behaviour was reported by Giannopoulos et al [26] for CFRP material with fire retardant properties was tested under low velocity impact. The force-time history curves did not show any load drop.…”

Section: A N U S C R I P Tsupporting

confidence: 83%

Low-velocity impact behaviour of woven laminate plates with fire retardant resin

Grasso

Ramji

et al. 2019

Composites Part B: Engineering

View full text Add to dashboard Cite

show abstract

Section: A N U S C R I P Tsupporting

confidence: 83%

Low-velocity impact behaviour of woven laminate plates with fire retardant resin

Grasso

Ramji

et al. 2019

Composites Part B: Engineering

View full text Add to dashboard Cite

show abstract

“…The areas were calculated by post-processing the results of the dye penetrant test, as shown in Figure 9. Many works [45,46] reported that the relationship between the in-plane damaged area and the incident impact energy of the impactor is linear. As can been seen from Figure 10a, in the impact process for sandwich structures where the energy level exceeded 10 J, after the damage to the top skin and the core, there was an amount of residual energy, which was associated with the damage to the bottom face sheet.…”

Section: Low-velocity Impact Response Of Sandwich Structuresmentioning

confidence: 99%

Impact Damage Resistance and Post-Impact Tolerance of Optimum Banana-Pseudo-Stem-Fiber-Reinforced Epoxy Sandwich Structures

Hassan¹,

Sapuan²,

Rasid³

et al. 2020

Applied Sciences

View full text Add to dashboard Cite

Banana fiber has a high potential for use in fiber composite structures due to its promise as a polymer reinforcement. However, it has poor bonding characteristics with the matrixes due to hydrophobic–hydrophilic incompatibility, inconsistency in blending weight ratio, and fiber length instability. In this study, the optimal conditions for a banana/epoxy composite as determined previously were used to fabricate a sandwich structure where carbon/Kevlar twill plies acted as the skins. The structure was evaluated based on two experimental tests: low-velocity impact and compression after impact (CAI) tests. Here, the synthetic fiber including Kevlar, carbon, and glass sandwich structures were also tested for comparison purposes. In general, the results showed a low peak load and larger damage area in the optimal banana/epoxy structures. The impact damage area, as characterized by the dye penetration, increased with increasing impact energy. The optimal banana composite and synthetic fiber systems were proven to offer a similar residual strength and normalized strength when higher impact energies were applied. Delamination and fracture behavior were dominant in the optimal banana structures subjected to CAI testing. Finally, optimization of the compounding parameters of the optimal banana fibers improved the impact and CAI properties of the structure, making them comparable to those of synthetic sandwich composites.

show abstract

“…Based on previous research, the residual after impact has been adopted to evaluate the impact resistance of sandwich structures with different facesheets and core materials [12][13][14][15]. Two types of sandwich panels which are based on hybrid cores consisting of polymer resin reinforced by metallic millitubes have been developed and characterize by Ji [11].…”

Section: Introductionmentioning

confidence: 99%

“…The damage mechanism of sandwich panels with thin aluminum skins and a Nomex™honeycomb core under impact and CAI have been presented by Gilioli [13]. Giannopoulos [14] presented the interrogation of low-velocity impact and compression after impact test results on a woven fiber composite having a fire retardant, syntactic core, two phase epoxy matrix. The main failure modes of sandwich panels under impact load including face-sheet failure, matrix/core crush and interface delamination.…”

Section: Introductionmentioning

confidence: 99%

The low-velocity impact and compression after impact (CAI) behavior of foam core sandwich panels with shape memory alloy hybrid face-sheets

Wan

2019

Science and Engineering of Composite Materials

View full text Add to dashboard Cite

Due to the properties of shape memory effect and super-elasticity, shape memory alloy (SMA) is added into glass fiber reinforced polymer (GFRP) face-sheets of foam core sandwich panels to improve the impact resistence performance by many researchers. This paper tries to discuss the failure mechanism of sandwich panels with GF/ epoxy face-sheets embedded with SMA wires and conventional 304 SS wire nets under low-velocity impact and compression after impact (CAI) tests. The histories of contact force, absorbed energy and deflection during the impact process are obtained by experiment. Besides, the failure modes of sandwich panels with different ply modes are compared by visual inspection and scanning electron microscopy (SEM). CAI tests are conducted with the help of digital image correlation (DIC) technology. Based on the results, the sandwich panels embedded with SMA wires can absorb more impact energy, and show relatively excellent CAI performance. This is because the SMA wires can absorb and transmit the energy to the outer region of GFRP face-sheet due to the super-elasticity-behavior. The failure process and mechanism of the CAI test is also discussed.

show abstract

Impact damage and CAI strength of a woven CFRP material with fire retardant properties

Cited by 26 publications

References 25 publications

Low-velocity impact behaviour of woven laminate plates with fire retardant resin

Low-velocity impact behaviour of woven laminate plates with fire retardant resin

Impact Damage Resistance and Post-Impact Tolerance of Optimum Banana-Pseudo-Stem-Fiber-Reinforced Epoxy Sandwich Structures

The low-velocity impact and compression after impact (CAI) behavior of foam core sandwich panels with shape memory alloy hybrid face-sheets

Contact Info

Product

Resources

About