Fatigue and Thermal Failure of Polymeric Composites Subjected to Cyclic Loading

In the presented study the experimental results for the investigation of fatigue of polymeric composites subjected to intensive cyclic loading with presence of the self-heating effect were presented. Experiments were carried out on laboratory stand, which provides the synchronous measurement of loading force, displacements and temperature. It was observed, that the fatigue process during occurrence of the self-heating effect consists of three phases, which were analyzed and described. The characteristic self-heating temperature distributions and their evolution during the whole loading history were analyzed. The parametric analysis of influence of loading conditions on the self-heating temperature evolution and fatigue of polymeric composites was presented. Basing upon the measurement results the authors proposed empirical models, which give a qualitative evaluation of parametric dependencies.

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Determination of fatigue limit of polymeric composites in fully reversed bending loading mode using self-heating effect

Journal of Composite Materials ◽

10.1177/0021998318780454 ◽

2018 ◽

Vol 53 (1) ◽

pp. 83-91 ◽

Cited By ~ 3

Author(s):

Andrzej Katunin ◽

Dominik Wachla

Keyword(s):

Fatigue Limit ◽

Heating Temperature ◽

Polymeric Composites ◽

Fatigue Tests ◽

Point Of View ◽

Heating Effect ◽

Thermal Failure ◽

Self Heating ◽

Loading Mode ◽

Bending Loading

In this paper, the fatigue limit in fibre-reinforced polymeric composites loaded in the fully reversed bending loading mode is investigated by using the self-heating effect occurring during such a type of testing. This approach provides the possibility of fast estimation of fatigue limit without the necessity of performing time-consuming high cycle fatigue tests. In order to validate the determined fatigue limit, the obtained results of temperature evolution were compared with the results of acoustic emission measurements. Based on the performed observations and comparisons, a structural degradation of polymeric composites subjected to cyclic loading with accompanied self-heating effect was described in terms of critical self-heating temperature concept. This allows for estimating the criticality of fatigue from the point of view of both mechanical and thermal failure.

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Stationary Self-Heating of the Circular and Annular Composite Plates Hinged on the Boundary under Axisymmetric Cyclic Loading

Advanced Composites Letters ◽

10.1177/096369351102000501 ◽

2011 ◽

Vol 20 (5) ◽

pp. 096369351102000 ◽

Cited By ~ 1

Author(s):

Andrzej Katunin

Keyword(s):

Heat Transfer ◽

Cyclic Loading ◽

Transfer Equation ◽

Heating Temperature ◽

Composite Plates ◽

The Self ◽

Heat Transfer Equation ◽

Dissipation Energy ◽

Self Heating ◽

Parametric Analyses

The present study is focused on the analytical modelling of the stationary self-heating caused by the hysteretic behaviour of the polymeric laminated circular and annular plates hinged on the boundary under axisymmetric transverse cyclic loading. The investigation was based on the complex parameters concept. The coupled thermoviscoelasticity problem was solved by substitution of the dissipation energy function to the heat transfer equation as a source function. The self-heating temperature distributions formulas were obtained by solving the heat transfer equation with appropriate thermal boundary conditions using trigonometric Fourier series. Numerous parametric analyses were presented. It was shown, that omitting the influence of the self-heating effect may results in the incorrect description of the behaviour of polymeric composites under cyclic loading.

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Variable Surface Temperature Distribution as a Criticality Indicator of the Self-Heating Effect in Composites

Advances in Materials Science ◽

10.1515/adms-2017-0022 ◽

2018 ◽

Vol 18 (1) ◽

pp. 5-12 ◽

Cited By ~ 1

Author(s):

A. Katunin

Keyword(s):

Temperature Distribution ◽

Surface Temperature ◽

Heating Temperature ◽

Measurement Techniques ◽

Critical Value ◽

The Self ◽

Heating Effect ◽

Self Heating ◽

Surface Temperature Distribution ◽

Variable Surface

AbstractSince self-heating effect may significantly intensify structural degradation, it is essential to investigate its criticality, i.e. the temperature value at which fatigue fracture is initiated. In this paper, a new and sensitive criticality indicator based on evaluation of evolution of surface temperature distribution was proposed and experimentally validated. It was shown that comparing to other measurement techniques the presented approach allows for precise evaluation of the critical value of the self-heating temperature. The properly determined critical value may be helpful both during design and operation of elements made of polymers and polymeric composite.

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Simulating the Self-Heating Effect for MOSFETs with Various Configurations of Buried Oxide

Russian Microelectronics ◽

10.1134/s1063739719070102 ◽

2019 ◽

Vol 48 (7) ◽

pp. 467-469

Author(s):

K. O. Petrosyants ◽

D. A. Popov

Keyword(s):

The Self ◽

Heating Effect ◽

Self Heating ◽

Buried Oxide

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The Self-Heating Effect in Junctionless Fin Field-Effect Transistors Based on Silicon-on-Insulator Structures with Different Channel Shapes

Technical Physics Letters ◽

10.1134/s1063785021060055 ◽

2021 ◽

Author(s):

A. E. Atamuratov ◽

B. O. Jabbarova ◽

M. M. Khalilloev ◽

A. Yusupov

Keyword(s):

Field Effect ◽

Field Effect Transistors ◽

Silicon On Insulator ◽

The Self ◽

Heating Effect ◽

Self Heating

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Criticality of the Self-Heating Effect in Polymers and Polymer Matrix Composites during Fatigue, and Their Application in Non-Destructive Testing

Polymers ◽

10.3390/polym11010019 ◽

2018 ◽

Vol 11 (1) ◽

pp. 19 ◽

Cited By ~ 7

Author(s):

Andrzej Katunin

Keyword(s):

Polymer Matrix ◽

Polymer Matrix Composites ◽

The Self ◽

Matrix Composites ◽

Heating Effect ◽

Non Destructive Testing ◽

Destructive Testing ◽

Structural Degradation ◽

Self Heating ◽

Non Destructive

The self-heating effect is a dangerous phenomenon that occurs in polymers and polymer matrix composites during their cyclic loading, and may significantly influence structural degradation and durability as a consequence. Therefore, an analysis of its criticality is highly demanding, due to the wide occurrence of this effect, both in laboratory fatigue tests, as well as in engineering practice. In order to overcome the problem of the accelerated degradation of polymer matrix structures, it is essential to evaluate the characteristic temperature values of self-heating, which are critical from the point of view of the fatigue life of these structures, i.e., the temperature at which damage initiates, and the safe temperature range in which these structures can be safely maintained. The experimental studies performed were focused on the determination of the critical self-heating temperature, using various approaches and measurement techniques. This paper present an overview of the research studies performed in the field of structural degradation, due to self-heating, and summarizes the studies performed on the evaluation of the criticality of the self-heating effect. Moreover, the non-destructive testing method, which uses the self-heating effect as a thermal excitation source, is discussed, and the non-destructivity of this method is confirmed by experimental results.

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