Effect of thermal cycling heated Fibre Metal Laminates under static load

Hagenbeek, Michiel; Sinke, J.

doi:10.1016/j.compstruct.2018.12.042

Cited by 6 publications

(4 citation statements)

References 11 publications

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“…Continuous physical aging slows down this process in long-term temperature and stress loading. The overall creep effect is thereby limited, which leads to applications of heated GLARE in FRPC structures [ 43 , 44 ].…”

Section: Foreign-object Heaters For Frpcmentioning

confidence: 99%

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Electrical Heaters for Anti/De-Icing of Polymer Structures

et al. 2023

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The problem of icing for surfaces of engineering structures requires attention more and more every year. Active industrialization in permafrost zones is currently underway; marine transport in Arctic areas targets new goals; the requirements for aerodynamically critical surfaces of wind generators and aerospace products, serving at low temperatures, are increasing; and fiber-reinforced polymer composites find wide applicability in these structural applications demanding the problem of anti/de-icing to be addressed. The traditional manufacturing approaches are superimposed with the new technologies, such as 3D printers and robotics for laying heat wires or cheap and high-performance Thermal Sprayed methods for metallic cover manufacturing. Another next step in developing heaters for polymer structures is nano and micro additives to create electrically conductive heating networks within. In our study, we review and comparatively analyze the modern technologies of structure heating, based on resistive heating composites.

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Section: Foreign-object Heaters For Frpcmentioning

confidence: 99%

“…In studies [ 40 , 41 , 42 , 43 , 44 ] discussed above, the process of embedding the heating elements into the FRPC structures was time- and effort-consuming. It can suffer from manufacturing inconsistencies and human errors.…”

Section: Foreign-object Heaters For Frpcmentioning

confidence: 99%

Electrical Heaters for Anti/De-Icing of Polymer Structures

et al. 2023

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“…Hu 15 stated that flight was accompanied by temperature variation, which also affected residual stresses of the laminates. Michiel 16 studied the effect of combined thermo‐mechanical loading on interlaminar shear properties of FMLs, but the thermal cycles between −20 and 50°C is not enough to simulate the practical service conditions. On the one hand, ambient temperature changes significantly with flight altitude.…”

Section: Introductionmentioning

confidence: 99%

Residual stress variation and deformation of shot peened glass fiber reinforced composites/aluminum–lithium laminates under thermal shock and thermal fatigue

Xiang

Wang

et al. 2021

Polymer Composites

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This paper aims to reveal the deformation mechanism of glass fiber reinforced composites (GFRP)/aluminum-lithium (Al-Li) laminates under thermal shock or fatigue and verify reliability of shot peen forming for the composites. In this study, residual stresses in laminate after shot peening was analyzed using finite element model, and the simulation results were verified by experiments. It was found that the shot peened laminates, compared with pure metal panel, similarly exhibited compressive stress at the two external metal surfaces and tensile stress in GFRP layer. The residual stresses changed discontinuously at the metal/fiber and 0 /90 fiber interface owing to the different modulus. Moreover, stresses generated during curing process significantly affected the final deformation after shot peening. Residual stresses altered in each layer with the increase of temperature from 0 to 100 C, which caused the arc height of the laminate decreased. However, the arc height increased to initial dimensions when the temperature dropped to 0 C. Thermal shock process was proved that it hardly influenced the sample geometry. The stress relaxation behaviors were found in long-term thermal fatigue. 1100 cycles from À55 to 100 C, which lasted 4 h in every cycle, resulted in 5% decrease of the arc height. The deformation problem should be further concentrated on for components made of GFRP/Al-Li laminates and processed by shot peen forming technology.

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“…Hagenbeek [ 23 ] conducted experiments of long-term thermal cycling and moisture on heated fiber metal laminates and glass-fiber epoxy composites to research the durability of structure. Subsequently, Hagenbeek [ 24 ] studied the effects of thermal cycling on heated fiber metal laminates under static load. The results showed that the addition of a static load has a distinct influence on the interlaminar shear properties after thermal cycling.…”

Section: Introductionmentioning

confidence: 99%

Impacts of Thermal and Mechanical Cycles on Electro-Thermal Anti-Icing System of CFRP Laminates Embedding Sprayable Metal Film

Zhang

2021

Materials

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The aircraft electro-thermal anti-icing system that can guarantee flight safety may be affected by periodic heating and cyclic aerodynamic force during long-term flight missions, which seems to be a potential threat to ice protection. This paper aims to investigate the impacts of thermal and mechanical cycles on heating elements of the electro-thermal anti-icing system. Specimens were manufactured with CFRP (carbon fiber reinforced polymer) laminated composite, glass fiber prepreg and copper screen, in which sprayable metal film (SMF) was embedded as the heating element. The study focuses on electric resistance variation of SMF and functional fatigue life under the cycling load. Thermal cycling tests were carried out in an insulated chamber where the specimens were heated up to 80 °C and then cooled down to −55 °C for 1000 cycles. Mechanical cycling tests were conducted on a fatigue testing machine where the specimens were imposed on tension-compression loading for 106 cycles. Results showed that the electric resistance of SMF increased with the number of loading cycles. The resistance was increased by 20% and the heating power was decreased by 16.67% after 1000 thermal cycles. During the mechanical cycling tests, it was found that the heating element was destructed before the structural failure, which indicated that the fatigue life of function was lower than that of the structure.

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Effect of thermal cycling heated Fibre Metal Laminates under static load

Cited by 6 publications

References 11 publications

Electrical Heaters for Anti/De-Icing of Polymer Structures

Electrical Heaters for Anti/De-Icing of Polymer Structures

Residual stress variation and deformation of shot peened glass fiber reinforced composites/aluminum–lithium laminates under thermal shock and thermal fatigue

Impacts of Thermal and Mechanical Cycles on Electro-Thermal Anti-Icing System of CFRP Laminates Embedding Sprayable Metal Film

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