The effect of thermo-mechanical loading on fracture-related parameters of austenitic steel

Lyubimova, L. L.; Tashlykov, A. A.; Tabakaev, Roman; Levin, A. A.; Popov, Aleksey Y.

doi:10.1016/j.engfailanal.2017.07.023

Cited by 3 publications

(3 citation statements)

References 31 publications

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“…5). It matches the annealing and marks the forming moment of microstructurally short cracks [1][2][3][4][5]. Interatomic bonds are strained in the grain boundaries.…”

Section: Materials Samples Experimental Techniquesmentioning

confidence: 63%

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Internal stress distribution in weld-affected zone under the effect of constrained loads

2018

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Abstract. The paper presents the experimental results of identify the redistribution pattern under the influence of mechanic cycle loads. The subject of the research was the weld metal zone of the uniform joint made of steel X12Cr1MoV. The research method was to organize the mechanic cyclic deformation of sample and to increase the load in each regular load cycle. The result of the work is the determination of sign-variable pattern of internal stress changes under deformation leading to propagation of fatigue and destruction.

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“…5). It matches the annealing and marks the forming moment of microstructurally short cracks [1][2][3][4][5]. Interatomic bonds are strained in the grain boundaries.…”

Section: Materials Samples Experimental Techniquesmentioning

confidence: 63%

“…The bond breaking process is the leading process at all stages of destruction. Its result is the stress relaxation and crack forming [1][2][3][4][5].…”

Section: Materials Samples Experimental Techniquesmentioning

confidence: 99%

Internal stress distribution in weld-affected zone under the effect of constrained loads

2018

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“…A review of relevant literature is conducted on the state-of-the-art and the challenges of designing and producing the next generation of c-Si PV module that will possess improved thermo-mechanical reliability at elevated temperature operations. Current research on fatigue life, reliability, thermo-mechanical response and influence of elevated temperature on structures, composites and laminates includes Lyubimova, L.L et al 2017 [8], Mejri et al 2017 [9] and Khashaba et al 2017 [10]. A better understanding of the thermo-mechanical deformation degradation of the laminates is found to be the key to designing the required module.…”

Section: State Of Investigationmentioning

confidence: 99%

Thermo-mechanical deformation degradation of crystalline silicon photovoltaic (c-Si PV) module in operation

Amalu

Hughes

Nabhani

et al. 2018

Engineering Failure Analysis

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Reliability and meantime to failure (MTTF) of crystalline silicon photovoltaic (c-Si PV) module operating at elevated temperature can be increased through in-depth understanding of the mechanics of thermo-mechanical deformation and degradation of the laminates bonded together in the system. The knowledge is critical to developing the next generation of robust c-Si PV modules. Deployment in elevated ambient temperature reduces the 25-year design life by inducing excessive deformation that results in significant laminate degradation. The research investigates the thermo-mechanical deformation of c-Si PV module. Analytical and simulation methods are employed in the investigation. The IEC 61215 test qualification is used. Ethylene vinyl acetate (EVA) and solder materials responses are modelled as temperature dependent with appropriate material models. Analytical technique for validating simulation results of the response of c-Si PV module to temperature load is presented. The laminate's stiffness is found to be governed by the stiffness ratio magnitude of silicon which is the most stressed component. The deformation ratio of EVA is highest and significantly determines the degree of variation of gap between solar cells. The EVA exhibits the highest susceptibility to thermo-mechanical deformation followed by the solder which is found to accumulate the highest magnitude of strain energy density. The research presents an analytical method that can be used to validate the output of computer-simulation of the magnitude of strain energy density of solder in c-Si PV modules.

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Non-destructive monitoring of tensile of mild steel samples by magnetic Barkhausen and ultrasonic methods

Ivanova

2018

MATEC Web Conf.

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The effect of thermo-mechanical loading on fracture-related parameters of austenitic steel

Cited by 3 publications

References 31 publications

Internal stress distribution in weld-affected zone under the effect of constrained loads

Internal stress distribution in weld-affected zone under the effect of constrained loads

Thermo-mechanical deformation degradation of crystalline silicon photovoltaic (c-Si PV) module in operation

Non-destructive monitoring of tensile of mild steel samples by magnetic Barkhausen and ultrasonic methods

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