An entropy-based model of plastic deformation energy dissipation in sliding

Klamecki, Barney E.

doi:10.1016/0043-1648(84)90044-9

Cited by 50 publications

(46 citation statements)

References 6 publications

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“…For plastic dissipation, this is the plastic work (De Grote & Mazur 1984). For dry or poorly lubricated friction and wear involving metals, work dissipated by rubbing involves work of plastic deformation (Van Wylen & Sonntag 1968;Klamecki 1984) and other dissipative effects (Robbins & Krim 1998). In fact, Tsuya (1976) observed for copper sliding against steel, intense plastic deformations that occur in a 10-50 mm thick skin layer on the softer copper, and attributed plastic dissipation in this 'severely deformed region' as a principal mechanism of friction force.…”

Section: Introductionmentioning

confidence: 99%

“…These mechanisms assumed irreversible plastic deformations coupled friction forces and energy dissipation. On this, Klamecki's (1980aKlamecki's ( ,b, 1982Klamecki's ( , 1984 thermodynamic analysis of friction and wear applied conservation of energy, mass and entropy for bodies in sliding contact. Dai et al (2000) analysed the entropy production associated with fretting wear.…”

Section: Introductionmentioning

confidence: 99%

“…The crux of this article is that all types of permanent degradation are irreversible processes, which disorder a system and generate irreversible entropy to agree with the second law of thermodynamics. Therefore, quite naturally, entropy can be used in a fundamental way to quantify the behaviour of irreversible degradation, including tribological processes such as friction and wear (Klamecki 1980a(Klamecki ,b, 1982(Klamecki , 1984Zmitrowicz 1987a-c). For sliding wear, this irreversible entropy is generated by irreversible dissipation associated with nonconservative friction forces.…”

Section: Introductionmentioning

confidence: 99%

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On the thermodynamics of degradation

2008

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The science base that underlies modelling and analysis of machine reliability has remained substantially unchanged for decades. Therefore, it is not surprising that a significant gap exists between available machinery technology and science to capture degradation dynamics for prediction of failure. Further, there is a lack of a systematic technique for the development of accelerated failure testing of machinery components. This article develops a thermodynamic characterization of degradation dynamics, which employs entropy, a measure of thermodynamic disorder, as the fundamental measure of degradation; this relates entropy generation to irreversible degradation and shows that components of material degradation can be related to the production of corresponding thermodynamic entropy by the irreversible dissipative processes that characterize the degradation. A theorem that relates entropy generation to irreversible degradation, via generalized thermodynamic forces and degradation forces, is constructed. This theorem provides the basis of a structured method for formulating degradation models consistent with the laws of thermodynamics. Applications of the theorem to problems involving sliding wear and fretting wear, caused by effects of friction and associated with tribological components, are presented.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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On the thermodynamics of degradation

2008

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“…Early attempts date back to the work of Klamecki [11][12][13][14] who performed a near-equilibrium analysis via entropy generation to demonstrate energy dissipation in friction processes. Klamecki showed that entropy could be used to describe all dissipative processes in sliding contact, including wear damage.…”

Section: Review Of Relevant Workmentioning

confidence: 99%

“…A comprehensive review of the application of the concept of entropy in various research areas is given in Martyushev and Seleznev [11]. 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].…”

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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Thermodynamic Methods in Tribology and Friction-Induced Self-Organization

Nosonovsky

Rohatgi

2011

Biomimetics in Materials Science

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An entropy-based model of plastic deformation energy dissipation in sliding

Cited by 50 publications

References 6 publications

On the thermodynamics of degradation

On the thermodynamics of degradation

An Entropy-Based Damage Characterization

Thermodynamic Methods in Tribology and Friction-Induced Self-Organization

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