Temperature effect on the mechanical properties and damage mechanisms of a glass/thermoplastic laminate

Cadieu, Lucien; Kopp, Jean-Benoît; Jumel, Julien; Béga, J.; Froustey, Catherine

doi:10.1177/0021998319894383

Cited by 13 publications

(13 citation statements)

References 44 publications

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“…The increase is thought to be attributed to the lower viscosity of the matrix material at higher temperature, thus allowing it flow more easily within the reinforcement, resulting in uniform distribution and better fiber/volume fractions which is responsible for higher tensile strength values. These results agree with some of the researches reported [24][25][26]. The average tensile strength for this combination is 538.8MPa at 60°C processing temperature and then post cured for 24 hours at room temperature, which is comparable 544 MPa reported by Rahmani et al [27] for similar combination at room temperature bagging and autoclaved at 60°C for 12 hours.…”

Section: Tensile Testingsupporting

confidence: 91%

Effect of Varying Initial Processing Temperature on Mechanical Properties of Carbon Epoxy Composites

Khan

Khalid²,

Raja

2021

Mehran Univ. res. j. eng. technol.

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Use of composite materials for structural application has greatly flourished in last three decades. Mechanical properties of carbon composite are largely dependent on the processing parameters like processing temperature, compaction pressure, resin flow and fiber orientation. Processing temperature has an important and decisive role in defining the properties of the composites and absence of proper temperature can cause reduced mechanical properties and defects like wrinkles and voids. This study focuses on varying the initial processing temperature for carbon laminates and documents the effect on mechanical properties of the composite produced. The testing range of temperature was specified by the choice of resin. It was found that the mechanical properties like tensile, bending and shear strength increased non-linearly with increasing initial temperature of processing. Increase of fiber volume fraction, fiber weight fraction and density were observed which along with better resin distribution, resin flow and increased laminate compaction can be attributed as key reasons of increased mechanical properties

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Section: Tensile Testingsupporting

confidence: 91%

Effect of Varying Initial Processing Temperature on Mechanical Properties of Carbon Epoxy Composites

Khan

Khalid²,

Raja

2021

Mehran Univ. res. j. eng. technol.

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“…In particular, it is clear from Figure 6 that the maximum loss modulus in all groups of laminates was observed at the T g of the epoxy matrix. This occurred due to an increase in internal friction that enhanced the mobility of the epoxy matrix to dissipate heat [ 38 ]. The increase in the storage modulus values and T g of all groups of laminates at increasing frequency occurred due to temperature-dependent molecular relaxation behaviour in polymers, i.e., molecular relaxation takes place at higher temperatures.…”

Section: Test Results and Discussionmentioning

confidence: 99%

Flexural and Viscoelastic Properties of FRP Composite Laminates under Higher Temperatures: Experiments and Model Assessment

2022

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This study investigates an experimental and analytical study on the flexural, failure, and viscoelastic properties of hybrid and non-hybrid composite laminates at increasing temperatures and frequencies. Carbon, glass, and hybrids of the two fibre materials with stacking sequences of [0/90]s were considered, and specimens were prepared via the resin transfer moulding method. Three-point bending and dynamic mechanical analysis tools were used. The failure surfaces of the laminates were examined using a scanning electron microscope. The results indicated that the flexural strength, modulus, and strain at failure of all groups of laminates decreased as the temperature increased. In particular, the storage modulus, damping factor, flexural strength, and flexural modulus properties of all groups of laminates increased as the hybrid ratio decreased on each targeted temperature and frequency test. However, the strain at failure increased as the hybrid ratio increased. Additionally, results obtained from the scanning electron microscope images confirmed that combinations of delamination and debonding failure modes were observed on the stacking sequences of [0]s and [90]s layers of bidirectional laminates. Finally, a comparison between the storage modulus results of all groups of laminates was conducted with three empirical models. The empirical model developed by Gibson et al. provided the most accurate prediction for all groups of laminates in the targeted temperature and frequency range. The predictions using the remaining empirical models were broadly similar. Further work is needed to optimise the empirical parameters and minimise the errors.

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“…Temperature has a compelling effect on the shielding, mechanical, and damage properties of composite. Cadieu et al [78] detailed the damage mechanisms of reinforced composite indicating fibre pullout and inter laminar failure generation below 20°C. They reported plastic flow of the polymer matrix at 60°C and intra-laminar micro-cracking at a temperature above 90°C.…”

Section: Temperaturementioning

confidence: 99%

Trends in reinforced composite design for ionizing radiation shielding applications: a review

2021

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This review explored recent developments in reinforced composite design and applications for improved radiation shielding and high percentage attenuation. Radiation energy moves as a wave. Thus unguarded exposure to high-energy radiation is inimical to the human tissue and the overall health standing of individuals which may result in cancer, tumour, skin burns and cardiovascular diseases. Radiation energy is conventionally contained using lead-based shields. However, recent literature has faulted the continued use of lead citing drawbacks such as high toxicity, poisoning, lack of chemical stability, heaviness and hazardous after life handling. Consequently, the trending research evidence has shown mass deviation towards the use of reinforced polymer composite as an alternative to lead due to their light weight, low cost, high resilience, good mechanical tenacity and interesting electrical properties. The present review therefore summarizes the criteria for ionizing radiation shielding material design, mechanism of radiation energy shielding, beam penetration in composite shielding materials, theoretical shielding parameters in the design of radiation protective materials, scheme of reinforced composite material selection for shielding purposes and various control variables in the design of composite for ionizing radiation shielding. In addition, an attempt was made to highlight gaps in research and draw future scope for further studies. It is expected that this review will give some guidance to the future exploration in the design and application of reinforced composite with respect to ionizing radiation shielding processes.

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Temperature effect on the mechanical properties and damage mechanisms of a glass/thermoplastic laminate

Cited by 13 publications

References 44 publications

Effect of Varying Initial Processing Temperature on Mechanical Properties of Carbon Epoxy Composites

Effect of Varying Initial Processing Temperature on Mechanical Properties of Carbon Epoxy Composites

Flexural and Viscoelastic Properties of FRP Composite Laminates under Higher Temperatures: Experiments and Model Assessment

Trends in reinforced composite design for ionizing radiation shielding applications: a review

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