A thermodynamic model for electrical current induced damage

Basaran, Cemal; Lin, Mei-Hui; Hua, Yi

doi:10.1016/j.ijsolstr.2003.08.018

Cited by 106 publications

(48 citation statements)

References 25 publications

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“…Both elastic and inelastic strains contribute to entropy generation. The second term is a linearized approximation described by the constants g (1) , g (2) , g (3) , and g (4) . The key point for our approach is that this expression is temperature independent.…”

Section: A Damage Characterizationmentioning

confidence: 99%

“…Statistical approaches for modeling damage evolution include curve fitting approaches, such as Weibull distributions and Kalman filters. 1,2 This knowledge is based on many a priori measurements and not directly connected to a direct wear out property. A potentially interesting field that has attracted less attention is thermodynamics.…”

Section: Introductionmentioning

confidence: 99%

“…Resistor failures can be due to overheating or overvoltage, which may lead to either open or short circuits. 15 We attempt to combine the thermodynamic framework proposed by the Basaran group 2,6,14,21 and the parametric approach of damage and failure reliability as investigated by the Feinberg group. 3,22,23 The final aim is to explain both short and open circuit resistor behavior with a single model based on positive irreversible entropy generation.…”

Section: Introductionmentioning

confidence: 99%

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Irreversible entropy model for damage diagnosis in resistors

Cuadras

Crisóstomo

Ovejas

et al. 2015

Journal of Applied Physics

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Entropy and irreversibility in the quantum realm Am. J. Phys. 79, 297 (2011) We propose a method to characterize electrical resistor damage based on entropy measurements. Irreversible entropy and the rate at which it is generated are more convenient parameters than resistance for describing damage because they are essentially positive in virtue of the second law of thermodynamics, whereas resistance may increase or decrease depending on the degradation mechanism. Commercial resistors were tested in order to characterize the damage induced by power surges. Resistors were biased with constant and pulsed voltage signals, leading to power dissipation in the range of 4-8 W, which is well above the 0.25 W nominal power to initiate failure. Entropy was inferred from the added power and temperature evolution. A model is proposed to understand the relationship among resistance, entropy, and damage. The power surge dissipates into heat (Joule effect) and damages the resistor. The results show a correlation between entropy generation rate and resistor failure. We conclude that damage can be conveniently assessed from irreversible entropy generation. Our results for resistors can be easily extrapolated to other systems or machines that can be modeled based on their resistance. V C 2015 AIP Publishing LLC.

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Section: A Damage Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Irreversible entropy model for damage diagnosis in resistors

Cuadras

Crisóstomo

Ovejas

et al. 2015

Journal of Applied Physics

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“…Entropy can be used in a fundamental way to quantify degradation, including tribological processes such as friction and wear [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. Similarly, other forms of degradation such as fretting [28] and fatigue damage of materials are consequences of irreversible processes that tend to increase the entropy generation of in the material [29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45]. Dissipative processes can be directly linked to thermodynamic entropy, or associated thermodynamic energies, for example plasticity, dislocations [7,46], erosion-corrosion [9], wear-fracture [47,48], fretting-corrosion [49], high current density, thermal gradient, stress gradient and chemical gradient [50,51], thermal degradation, and associated failure of tribological components.…”

Section: Review Of Relevant Workmentioning

confidence: 99%

An Entropy-Based Damage Characterization

Amiri

Modarres

2014

Entropy

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This paper presents a scientific basis for the description of the causes of damage within an irreversible thermodynamic framework and the effects of damage as observable variables that signify degradation of structural integrity. The approach relies on the fundamentals of irreversible thermodynamics and specifically the notion of entropy generation as a measure of degradation and damage. We first review the state-of-the-art advances in entropic treatment of damage followed by a discussion on generalization of the entropic concept to damage characterization that may offers a better definition of damage metric commonly used for structural integrity assessment. In general, this approach provides the opportunity to described reliability and risk of structures in terms of fundamental science concepts. Over the years, many studies have focused on materials damage assessment by determining physics-based cause and affect relationships, the goal of this paper is to put this work in perspective and encourage future work of materials damage based on the entropy concept.

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“…In the context of damage mechanics, Basaran and Yan [29] interpreted the entropy as disorder and employed Boltzmann entropy to quantify the disorder in the material. The extension of their approach to electrical and chemical properties is also published in [30][31][32]. Naderi et al [33] also reported experimental results on the existence of a entropic limit at the time of the fatigue failure.…”

Section: Introductionmentioning

confidence: 98%

Acoustic Entropy of the Materials in the Course of Degradation

Kahirdeh¹,

Khonsari²

2016

Entropy

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Abstract:We report experimental observations on the evolution of acoustic entropy in the course of cyclic loading as degradation occurs due to fatigue. The measured entropy is a result of the materials' microstructural changes that occur as degradation due to cyclic mechanical loading. Experimental results demonstrate that maximum acoustic entropy emanating from materials during the course of degradation remains similar. Experiments are shown for two different types of materials: Aluminum 6061 (a metallic alloy) and glass/epoxy (a composite laminate). The evolution of the acoustic entropy demonstrates a persistent trend over the course of degradation.

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A thermodynamic model for electrical current induced damage

Cited by 106 publications

References 25 publications

Irreversible entropy model for damage diagnosis in resistors

Irreversible entropy model for damage diagnosis in resistors

An Entropy-Based Damage Characterization

Acoustic Entropy of the Materials in the Course of Degradation

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