Impact Damage Characteristics of Bismaleimides and Thermoplastic Composite Laminates

Dan-Jumbo, Eugene; Leewood, A. R.; Sun, Ce

doi:10.1520/stp10425s

Cited by 13 publications

(8 citation statements)

References 4 publications

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“…Nevertheless, the effect of thermoplastics matrix types (homopolymer PP and copolymer PP) on the low-velocity impact response of glass/PP laminates with some important stacking sequences has not been reported so far. The effect of matrix types in that context was reported for thermoset composites, e.g., bismaleimide [9], epoxy [2,29,30], showing that toughening thermoset matrices improved the impact damage resistance. Moreover, the understanding of low-velocity impact response of thermoplastic composites, particularly PP-based laminates, is still not at the same level with thermoset composites.…”

Section: Introductionmentioning

confidence: 87%

“…Impact damage phenomenology has been studied for thermoset-based [2,3,4,5,6,7,8] and thermoplastic-based composites [9,10,11,12,13,14,15,16]. Both the fiber type [17] and the matrix type should be carefully chosen to obtain the desired impact properties.…”

Section: Introductionmentioning

confidence: 99%

“…For example, selecting polypropylene (thermoplastic) over epoxy (thermoset) was found to improve the maximum impact force, absorbed energy and peak energy in glass fiber-reinforced composites due to strain hardening and resistance to matrix cracking [14]. Impact loading on thermoplastic composite systems (carbon/PEEK, carbon/Torlon) prompted less amount of damage than that on thermoset composite (carbon/bismaleimide) [9]. The impact damage resistance of PEEK was associated with its high Mode-I interlaminar fracture toughness (G Ic ) [18].…”

Section: Introductionmentioning

confidence: 99%

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Revealing the effects of matrix behavior on low-velocity impact response of continuous fiber-reinforced thermoplastic laminates

Yudhanto

Wafai

Lubineau

et al. 2019

Composite Structures

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Matrix behavior is expected to widely influence the impact response of composites, but detailed conclusions in the case of thermoplastic laminates are still needed. In this paper, we investigated the effect of using either ductile homopolymer PP or less-ductile impact copolymer PP matrices on the low-velocity impact responses of continuous glass fiber-reinforced polypropylene (PP) laminate. These PP types represent two variants in the same family of thermoplastic matrix. A thorough experimental campaign was first performed to provide the tensile properties (for PP and glass/PP) and fracture toughness (Mode-I and Mode-II, glass/PP only) of the employed materials. Then, low-velocity impact tests where the energy levels are ranging from 12 to 30 J were performed. Using ductile PP in glass/PP laminates reduces the energy dissipated during impact as well as the impact damage area. The effect of selected stacking sequences on the resistance to impact was also studied as a way to reveal the difference between ductile and less-ductile glass/PP. Stacking sequence with thin plies shows better impact properties than other sequences regardless of the matrix ductility, which can be explained by micromechanics for both grades of material. Finally, as quasistatic indentation (QSI) is usually used to quickly access the resistance of laminates towards out-of-plane impact, we systematically compared our impact results with QSI results. We found that the prospective use of QSI in forecasting impact properties and damage is very limited in glass/PP composite due to strain-rate sensitivity.

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Section: Introductionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Revealing the effects of matrix behavior on low-velocity impact response of continuous fiber-reinforced thermoplastic laminates

Yudhanto

Wafai

Lubineau

et al. 2019

Composite Structures

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“…Matrix employed in PMCs controls how much deformation occurs, which has an influence on local strain and impact resistance. Numerous researchers are investigating the type of damage that occurs in a composite developed using thermoset (TS) 27–32 and thermoplastic (TP) 22,33–39 matrices. It is found that composites making use of TS matrix results in more damage compared to TP composites.…”

Section: Introductionmentioning

confidence: 99%

Comparative study on low velocity impact behavior of natural hybrid and non hybrid flexible thermoplastic based composites

Kumbhare

Mahesh

Joladarashi

et al. 2022

Journal of Thermoplastic Composite Materials

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The current study attempts to evaluate the low-velocity impact (LVI) behavior of jute and banana fiber-based hybrid and non hybrid green composites. The proposed composites are fabricated using compression moulding method with variety of positioning of layers namely jute-rubber-jute-rubber-jute (JRJRJ), banana-rubber-banana-rubber-banana (BRBRB), jute-rubber-banana-rubber-jute (JRBRJ) and banana-rubber-jute-rubber-banana (BRJRB). Thus developed composites are subjected to LVI testing using conical and hemispherical shaped impactor in drop weight impact testing machine and different impact velocities of 5 m/s, 10 m/s and 15 m/s. Based on the ability of the proposed composites to absorb energy, coefficient of restitution (CoR), energy loss percentage (ELP), and failure behaviour, the suggested flexible composites’ performances are assessed. The study reveals that JRJRJ composite exhibits better energy absorption capability and BRBRB exhibits least energy absorption capability compared to its counterparts. The damage study reveals that hemispherical impactor leads to more damage area due to its larger contact area whereas, conical impactor results in local penetration. Results reveals that inclusion of jute fiber as reinforcement results in better LVI properties compared to banana fiber. It is also clear that the presence of a compliant matrix improves energy absorption and damage resistance in flexible composites.

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“…The first FMLs, called aramid-reinforced aluminum laminates (ARALLs), were introduced in 1978 at the Faculty of Aerospace Engineering at Delft University of Technology in the Netherlands [1]. In 1990, an improved type of ARALL called glass laminate aluminum reinforced epoxy (GLARE), or ARALL with glass fibers, was successfully developed [2]. Furthermore, Lin et al [3] developed carbon-reinforced aluminum laminates, which contain carbon fibers (CFs) rather than aramid fibers.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis and Experimental Verification of Ti/APC-2/Kevlar Hybrid Composite Laminates Due to Low-Velocity Impact

Jen¹,

Chang²,

Wu³

2018

MSA

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The mechanical properties of Ti/APC-2/Kevlar/epoxy hybrid composite laminates after low velocity impact were investigated at room temperature. There were three types of samples, including three layered [Ti/(0/90) s /Ti], five layered [Ti/(0/90) 2 / Ti ] s and nine layered [Ti/Kevlar/Ti/(0/90) 2 / Ti ] s. The lay-ups of APC-2 were cross-ply, while Ti layers were treated by chromic acid anodic method. Ti and APC-2 were stacked to fabricate the composite laminates via hot press curing process. Kevlar layers were added to fabricate nine-layered composite laminates via vacuum assisted resin transfer molding. The drop-weight tests were conducted with a hemispherical nosed projectile in 10 mm diameter. The impact loads were 5 kg and 10 kg and impact heights were adjusted to penetrate samples or the maximum height 1.50 m. The static tensile tests were conducted to measure the residual mechanical properties after impact. The free body drop tests were also simulated by using finite element method and software ANSYS LS-DYNA3D. The results showed that the bottom Ti layer absorbed more internal energy than the top Ti layer, then the cracks were found in the bottom Ti layer more often. The ultimate tensile strength reduced significantly after impact. The initial longitudinal compliance increased with the impact height increasing and decreased after the samples penetrated. Comparing the experimental data with the numerical results, it was found that the damage of the latter was more serious than that of the former. On the conservative side, the results of numerical simulation are acceptable and adopted for applications when no testing data available.

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Impact Damage Characteristics of Bismaleimides and Thermoplastic Composite Laminates

Cited by 13 publications

References 4 publications

Revealing the effects of matrix behavior on low-velocity impact response of continuous fiber-reinforced thermoplastic laminates

Revealing the effects of matrix behavior on low-velocity impact response of continuous fiber-reinforced thermoplastic laminates

Comparative study on low velocity impact behavior of natural hybrid and non hybrid flexible thermoplastic based composites

Numerical Analysis and Experimental Verification of Ti/APC-2/Kevlar Hybrid Composite Laminates Due to Low-Velocity Impact

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