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1

Yang, Li, Ju Li Li, Jing Guo Ge, Meng Li, and Nan Ji. "Study on Thermal Cycling of Sn0.7Cu Solder." Advanced Materials Research 791-793 (September 2013): 362–65. http://dx.doi.org/10.4028/www.scientific.net/amr.791-793.362.

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Thermal cycling of a unit Sn0.7Cu solder was studied based on the steady-state creep constitutive equation and Matlab software. The results show that there is a steady-state cycle for the thermal cycling of unit Sn0.7Cu eutectic solder. In steady-state thermal cycling, the shear stress is increased with the increase of temperature. There is a stage of stress relaxation during high temperature. A liner relationship between maximum shear stress and maximum shear strain is observed during thermal cycling. The metastable cycle number is declined greatly with the increase of maximum shear strain.
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2

Mavlyutov, R. R., L. Н. Gorchakov, Sh Sh Galyaliev, N. M. Tuykin, A. G. Khakimov, and I. M. Tsirelman. "Modelling stress state in reaction columns." Proceedings of the Mavlyutov Institute of Mechanics 3 (2003): 72–81. http://dx.doi.org/10.21662/uim2003.1.005.

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The operation of chemical reactors, particularly those for producing benzene, is associated with the generation of a large amount of heat. Inaccurately chosen thermal regimes of performance in the reaction columns at large temperature gradients can be responsible for the occurrence of high thermal stresses that decrease the endurance of equipment elements. Therefore, it is quite topical to reveal, using the mathematical simulation approach, both positive and negative effects in relation to stress deformed state of equipment elements under different regimes of heat removal from the outside surf
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3

Guo, Yan, Yanan Jiang, Ji Wang, and Bin Huang. "3D Thermal Stresses in Composite Laminates Under Steady-State Through-Thickness Thermal Conduction." International Journal of Applied Mechanics 12, no. 06 (2020): 2050065. http://dx.doi.org/10.1142/s1758825120500659.

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In this study, 3D thermal stresses in composite laminates under steady-state through thickness thermal conduction are investigated by means of a stress function-based approach. One-dimensional thermal conduction is solved for composite laminate and the layerwise temperature distribution is calculated first. The principle of complementary virtual work is employed to develop the governing equations. Their solutions are obtained by using the stress function-based approach, where the stress functions are taken from the Lekhnitskii stress functions in terms of in-plane stress functions and out-of-p
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4

Barabash, Mariia, Maryna Romashkina, and Olga Bashynska. "Thermal stress state of reinforced concrete floor slab." Strength of Materials and Theory of Structures, no. 103 (October 1, 2019): 43–56. http://dx.doi.org/10.32347/2410-2547.2019.103.43-56.

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5

Huliaiev, V. I., V. V. Haidaichuk, O. O. Hustieliev, and L. V. Shevchuk. "Thermal Stress State of Layered and Inhomogeneous Pavement." International Applied Mechanics 57, no. 1 (2021): 86–96. http://dx.doi.org/10.1007/s10778-021-01057-7.

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6

Radin, Yu A., T. S. Kontorovich, and P. V. Golov. "Monitoring the Thermal Stress State in Steam Turbines." Power Technology and Engineering 53, no. 6 (2020): 719–23. http://dx.doi.org/10.1007/s10749-020-01146-6.

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7

Yu, Zhipeng, Fan Zhang, Xiao Ma, Fujian Yang, Dawei Hu, and Hui Zhou. "Experimental Study on Thermal Expansion Behavior of Concrete under Three-Dimensional Stress." Advances in Civil Engineering 2021 (March 8, 2021): 1–8. http://dx.doi.org/10.1155/2021/5597918.

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Concrete is widely used in underground engineering and bears three-dimensional stress transmitted by overlying load. When a fire occurs, the thermal expansion of concrete structure under such stress state is different from that under stress-free state. For this purpose, a self-developed real-time high-temperature true triaxial test system was applied to investigate the thermal expansion behavior of concrete under three-dimensional stress state. The thermal expansion strain of concrete under the three-dimensional stress undergoes strain increasing and strain stabilizing stages. At 600°C, the ma
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8

Zhuo, Ming, Li Hua Yang, and Lie Yu. "The Steady-State Thermo-Mechanical Analysis of Turbine Rotor." Applied Mechanics and Materials 574 (July 2014): 184–89. http://dx.doi.org/10.4028/www.scientific.net/amm.574.184.

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Circumferential rod-fastened rotor is one kind of extensively applied structures of gas turbines which work at high temperature to expand hot gas and generate power. The steady-state temperature distribution of the turbine rotor as well as the thermal deformation and stress state were calculated through a thermo-mechanical analysis. A cyclic model of a four-disc rod-fastened turbine rotor assembly was built. A thermal analysis was carried out to obtain the steady-state thermal map of the turbine rotor with the thermal boundary conditions calculated through heat transfer empirical correlations.
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9

Chen, Liang Yu, Yu Li, and Jian Hua Gui. "Thermal Stress of Blast Furnace Hearth Linings under Erosion State." Applied Mechanics and Materials 16-19 (October 2009): 1101–5. http://dx.doi.org/10.4028/www.scientific.net/amm.16-19.1101.

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The structure of cooling stave was simplified with equivalent convective heat transfer coefficient, and the thermal stress axisymmetric calculation model of blast furnace hearth linings under erosion state was established. The thermal stresses of familiar erosion states were analyzed. The thermal stress concentration of erosion part is an importance cause of erosion development. ‘Elephant-foot’ erosion seldom develops to ‘boiler-bottom’ erosion. ‘Boiler-bottom’ erosion is a ideal long life erosion state. When the erosion stabilizes, smaller cooling intensity is favorable to linings stabilizati
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10

Azhmuldinov, E. A., Yu N. Chernyshenko, and M. G. Titov. "PHYSIOLOGICAL STATE AND PRODUCTIVITY OF ANIMALS UNDER THERMAL STRESS." VESTNIK OF THE BASHKIR STATE AGRARIAN UNIVERSITY 51, no. 3 (2019): 26–31. http://dx.doi.org/10.31563/1684-7628-2019-51-3-26-31.

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A study was conducted of the effect of heat stress on the clinical and physiological state of male rabbits at the age of 5 months with an average live weight of 1551 g. The maximum temperature the animals were exposed to during the experiment was +42 °C. The study results showed a decrease in feed intake and an increase in water consumption, which contributed to a decrease in live weight. Hematological parameters, including hemoglobin, erythrocytes, leukocytes, total plasma protein, globulins and cholesterol increased during the action of this stress factor. It was found that the effect of hig
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11

Seryakov, V. M. "Thermal Stress State in the Vicinity of Underground Roadways." Journal of Mining Science 59, no. 6 (2023): 901–10. http://dx.doi.org/10.1134/s1062739123060030.

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12

Firoozeh, Karimi Moghadam. "Study of End Surfaces’ Deformation and Thermal Stress in Solid State Laser." Applied Mechanics and Materials 110-116 (October 2011): 4140–44. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.4140.

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High power solid state lasers have wide applications; they have extensively attracted many attentions. When laser pumped, a lot of heat produces in it causes thermal effects such as stresses end effect and variations of refraction index. In this paper, we analytically study the thermal effects in an Nd: YAG solid state laser crystal which is pumped in longitude with a second order Gaussian (super Gaussian) profile. In this survey we neglect z derivatives of temperature distribution and also consider a statement in which thermal condition of cooler system is much more than thermal condition of
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13

Mishchenko, A. V. "Stress-strain state of rod with heterogeneous structure (Novosibirsk)." Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture 25, no. 6 (2023): 113–24. http://dx.doi.org/10.31675/1607-1859-2023-25-6-113-124.

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Heterogeneous structures have a number of significant advantages over classical homogeneous. Their stress-strain state control allows to more effectively adapt the system to given thermal conditions and, as a result, additionally save weight and cost of the structure. The practical use of elements with heterogeneous structure, requires the creation of engineering calculation approaches with acceptable labor intensity, accuracy and versatility.Purpose: The improvement of design methods implying physical relations in problems of thermal power deformation of rods with heterogeneous structure.Desi
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14

Timokhova, Oksana, Dmitry Shakirzyanov, and Roman Timokhov. "Controlling the Stress State of the Coating during Plasma Spraying." Materials Science Forum 1049 (January 11, 2022): 144–51. http://dx.doi.org/10.4028/www.scientific.net/msf.1049.144.

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Coatings obtained by spraying materials with a high-temperature gas jet onto a substrate followed by thermal treatment of the deposited materials (thermal gas coatings) are increasingly being used. The practical experience of using thermal spray coatings, accumulated over the past 20–30 years in industries, shows that in this way it is possible, as a rule, to reduce the wear of machine parts operating under various conditions by a factor of 2–5. The effectiveness of the technology has also been proven in the protection of products from corrosion and thermal damage. The efficiency of the applie
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15

Yang, Bin, Chuan Tong Chen, and Ding Ming Yuan. "Impact of Functional Layer for Thermal Stress of Concrete Pavement Structure." Advanced Materials Research 239-242 (May 2011): 1766–70. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.1766.

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Flexible functional layer of asphalt sands setting between concrete pavement slab and base can change the contact state of different layers and reduce the friction coefficient between slab and base and the thermal stress of pavement slab can be decreased. This functional layer can also protect the base from void disease produced by infiltration and erosion of rain water and snow water. This paper mainly focuses on the impact of parameters variation of contact state of pavement structural layer, slab length and flexible asphalt functional layer thickness and modulus for concrete pavement therma
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16

Hadjesfandiari, Ali R., Arezoo Hajesfandiari, and Gary F. Dargush. "Integral Representation for Three-Dimensional Steady-State Couple-Stress Size-Dependent Thermoelasticity." Mathematics 13, no. 4 (2025): 638. https://doi.org/10.3390/math13040638.

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Boundary element methods provide powerful techniques for the analysis of problems involving coupled multi-physical response. This paper presents the integral equation formulation for the size-dependent thermoelastic response of solids under steady-state conditions in three dimensions. The formulation is based upon consistent couple stress theory, which features a skew-symmetric couple-stress pseudo-tensor. For general anisotropic thermoelastic material, there is not only thermal strain deformation, but also thermal mean curvature deformation. Interestingly, in this size-dependent multi-physics
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17

Liu, T. H., and E. L. Cranford. "An Investigation of Thermal Stress Ranges Under Stratification Loadings." Journal of Pressure Vessel Technology 113, no. 2 (1991): 326–31. http://dx.doi.org/10.1115/1.2928762.

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This paper deals with a unique and severe stratification phenomena in the pressurizer surge line piping system. The methodology used in the calculation of total stress state includes pressure stresses from internal pressure, global thermal stresses from the constraining of the system by supports, local thermal stresses from hot/cold stratified condition, and transient thermal stresses in the pipe and at structural discontinuities. Special discussion on the interpolation to obtain moment loadings from one state of thermal condition to the next with nonlinear gapped support system is presented.
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18

Kvasnytskyi, V. V., V. F. Kvasnytskyi, M. V. Matvienko, E. A. Buturlya, and G. V. Yermolayev. "Stress-strain state of welded and brazed assemblies from dissimilar materials with soft interlayer at thermal loading." Paton Welding Journal 2019, no. 5 (2019): 13–17. http://dx.doi.org/10.15407/tpwj2019.05.02.

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19

C Munonye, C. "Determining the Thermal Stress of Primary School Children in the Warm and Humid Climate of Imo State." International Journal of Scientific Engineering and Research 11, no. 8 (2023): 13–18. https://doi.org/10.70729/se23818225833.

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20

Song, Fang Fang, Sha Xu, and Yun Fei En. "Thermodynamics Coupling Analysis of Grid-Controlled Electron Gun." Applied Mechanics and Materials 423-426 (September 2013): 1433–37. http://dx.doi.org/10.4028/www.scientific.net/amm.423-426.1433.

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This paper carried out temperature analysis in the working state of the electron gun structure, the thermal deformation under high temperature and thermal stress analysis. Firstly, from the steady state temperature cloud chart of the electron gun we can see the cathode temperature is 985 °C, shadow grid temperature is same as cathode temperature, and the controlled-grid temperature is as high as 540 °C. Secondly, on the basis of thermal analysis, the coupled thermo-mechanical simulation technology is broken through; further thermal stress and thermal deformation at high temperature are analyze
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21

Cui, S. Q., and C. Zhou. "Coupled effects of stress state and void ratio on thermal conductivity of saturated soils." Géotechnique Letters 12, no. 2 (2022): 1–6. http://dx.doi.org/10.1680/jgele.22.00001.

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Soils surrounding energy geostructures (e.g. energy piles and borehole heat exchangers) always have different overburden pressures and void ratios. Their thermal conductivities are important for analysing the performance of energy geostructures such as the heat exchange rate between soils and geostructures. So far, however, the coupled effects of stress state and void ratio on thermal conductivity have not been fully understood. In this study, six series of tests were conducted to measure the thermal conductivity of three different soils at various stress states and void ratios, including reco
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22

Peng, Hui, Hong Bo Guo, Chun Xia Zhang, and Sheng Kai Gong. "Numerical Analysis of EB-PVD Thermal Barrier Coatings under Thermal-Mechanical Coupled Environment." Materials Science Forum 546-549 (May 2007): 1795–99. http://dx.doi.org/10.4028/www.scientific.net/msf.546-549.1795.

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Numerical method was used to simulate the stress state of thermal barrier coatings (TBCs) under thermal-mechanical coupled environment. The finite element (FE) model was built as hollow tube and boundary conditions including heating rate, cooling air convection and mechanical loadings were considered. The maximum stress locates where maximum temperature gradients is formed. This failure mode is consistent with the experimental results.
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23

Vereshchaka, Sergej M., and Andrej V. Deineka. "Thermal Stress State of Impeller Seal Made ​​from Composite Material." Applied Mechanics and Materials 630 (September 2014): 326–33. http://dx.doi.org/10.4028/www.scientific.net/amm.630.326.

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The stress-strain state of impeller seal made ​​of composite material a centrifugal pump under the thermal effects is investigated based on the classical theory of elasticity of an anisotropic body. Kinematic and static conditions of contact for mating surfaces of adjacent layers are considered ideal. Solution of the problem is obtained in axisymmetric. It is noted that the increase in temperature on the surface of the composite seal has a significant impact on its stress state.
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24

FUKUMOTO, Masahiro, Kouji TORII, and Isao OKANE. "Thermal stress analysis in ceramics-metal solid state bonding process." Transactions of the Japan Society of Mechanical Engineers Series C 53, no. 496 (1987): 2724–28. http://dx.doi.org/10.1299/kikaic.53.2724.

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25

Xin, Jin, Lin Yuyu, and Zhang Libin. "Thermal creep behavior of CZ cladding under biaxial stress state." Nuclear Engineering and Technology 52, no. 12 (2020): 2901–9. http://dx.doi.org/10.1016/j.net.2020.05.026.

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26

Benetti, P., J. R. Kelly, M. Sanchez, and A. Della Bona. "Influence of thermal gradients on stress state of veneered restorations." Dental Materials 27 (January 2011): e77. http://dx.doi.org/10.1016/j.dental.2011.08.579.

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27

Benetti, Paula, J. Robert Kelly, Mauricio Sanchez, and Alvaro Della Bona. "Influence of thermal gradients on stress state of veneered restorations." Dental Materials 30, no. 5 (2014): 554–63. http://dx.doi.org/10.1016/j.dental.2014.02.020.

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28

Butko, A. M. "Thermal stress state in the end regions of multilayered shells." Soviet Applied Mechanics 24, no. 5 (1988): 492–98. http://dx.doi.org/10.1007/bf00883072.

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29

Pankratova, N. D., and A. A. Mukoed. "Determination of the thermal stress state of orthotropic laminated plates." Soviet Applied Mechanics 27, no. 8 (1991): 770–75. http://dx.doi.org/10.1007/bf00889388.

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30

Chernukha, Yu A., and N. I. Voitovich. "Thermal stress state of circular plates joined through a ring." Soviet Applied Mechanics 22, no. 6 (1986): 562–67. http://dx.doi.org/10.1007/bf00890611.

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31

Promakhov, V., I. Zhukov, Ya Dubkova, V. Platov, N. Grunt, and N. Shultz. "Modelling stress-strain state in oxide ceramics under thermal shock." Journal of Physics: Conference Series 919 (November 2017): 012015. http://dx.doi.org/10.1088/1742-6596/919/1/012015.

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32

Ganczarski, A., and D. Szubartowski. "Plane stress state of FGM thick plate under thermal loading." Archive of Applied Mechanics 86, no. 1-2 (2015): 111–20. http://dx.doi.org/10.1007/s00419-015-1105-5.

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33

Bohdan, Gera, and Kovalchuk Vitalii. "A study of the effects of climatic temperature changes on the corrugated structure." Eastern-European Journal of Enterprise Technologies 3, no. 7(99) (2019): 26–35. https://doi.org/10.15587/1729-4061.2019.168260.

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The study provides the results of experimental tests on temperature distribution throughout the surface of a corrugated metal sheet. Mathematical models are proposed for calculating the thermal conductivity and the thermal stress state of a fragment of the corrugated metal frame of a transportation facility whose lateral surfaces are heated to different temperatures. It is assumed that the temperature depends on two spatial variables. As a possible criterion for choosing the desired function of temperature distribution throughout the construction, it is assumed that the functional defined by a
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34

Liu, Liu, Qiong Guo, and Tiren He. "Thermal-Acoustic Fatigue of a Multilayer Thermal Protection System in Combined Extreme Environments." Advances in Mechanical Engineering 6 (January 1, 2014): 176891. http://dx.doi.org/10.1155/2014/176891.

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In order to ensure integrity of thermal protection system (TPS) structure for hypersonic vehicles exposed to severe operating environments, a study is undertaken to investigate the response and thermal-acoustic fatigue damage of a representative multilayer TPS structure under combined thermal and acoustic loads. An unsteady-state flight of a hypersonic vehicle is composed of a series of steady-state snapshots, and for each snapshot an acoustic load is imposed to a static steady-state TPS structure. A multistep thermal-acoustic fatigue damage intensity analysis procedure is given and consists o
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35

Cardone, Daniela, David Perpetuini, Chiara Filippini, et al. "Driver Stress State Evaluation by Means of Thermal Imaging: A Supervised Machine Learning Approach Based on ECG Signal." Applied Sciences 10, no. 16 (2020): 5673. http://dx.doi.org/10.3390/app10165673.

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Traffic accidents determine a large number of injuries, sometimes fatal, every year. Among other factors affecting a driver’s performance, an important role is played by stress which can decrease decision-making capabilities and situational awareness. In this perspective, it would be beneficial to develop a non-invasive driver stress monitoring system able to recognize the driver’s altered state. In this study, a contactless procedure for drivers’ stress state assessment by means of thermal infrared imaging was investigated. Thermal imaging was acquired during an experiment on a driving simula
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36

Rao, Y. Surya Appa. "Design, Static Structural and a Steady State Thermal Analysis of Aluminum Composite Piston." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 04 (2024): 1–5. http://dx.doi.org/10.55041/ijsrem30417.

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The aim of this project is to increase the life and to analyze the various characteristics of composite piston that is strength, weight, thermal conductivity, density, thermal stress and specific heat. Piston is the basic component of the automobile engine. The modified design of the composite piston in this project is compared with existing piston to analyze the Mean Time Between Maintenance. Now-a-days the pistons are made up of aluminium silicon alloy which expands enormously due to generation of heat in the piston. This will affect clearance volume and insufficient clearance can cause the
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37

Masayuki, Nishida, M. Refai Muslih, Yasukazu Ikeuchi, Nobuaki Minakawa, and Hanabusa Takao. "Internal Stress Measurement of Fiber Reinforced Composite by Neutron Diffraction with In Situ Low Temperature Stress Measurement System." Materials Science Forum 490-491 (July 2005): 239–44. http://dx.doi.org/10.4028/www.scientific.net/msf.490-491.239.

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The internal stresses in the continuous tungsten-fiber reinforced copper-matrix composite were examined by the Neutron stress measurement method. The Neutron diffraction apparatus ND1, which is abbreviated from the Neutron Diffraction system No.1 designed and manufactured by the National Nuclear Energy Agency in Indonesia (Badan Tenage Nuklir Nasional, BATAN), was used in the present study. The most common 3-axes measurement method with Hooke’s equation was only possible to measure about 110 plane, because the tungsten fiber became the situation of heavy 110 orientation. Thermal stress alterat
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38

Suzuki, Kenji, Takahisa Shobu, and Ayumi Shiro. "Characteristics of Residual Stress by Water-Jet Peening." Materials Science Forum 768-769 (September 2013): 564–71. http://dx.doi.org/10.4028/www.scientific.net/msf.768-769.564.

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The specimen material was austenitic stainless steel, SUS316L. The residual stress was induced by water-jet peening. The residual stress was measured using the 311 diffraction with conventional X-rays. The measured residual stress showed the equi-biaxial stress state. To investigate thermal stability of the residual stress, the specimen was aged thermally at 773 K in air to 1000 h. The residual stress kept the equi-biaxial stress state against the thermal aging. Lattice plane dependency of the residual stress induced by water-jet peening was evaluated using hard synchrotron X-rays. The residua
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39

Messina, Gaetano, and Giuseppe Modica. "Applications of UAV Thermal Imagery in Precision Agriculture: State of the Art and Future Research Outlook." Remote Sensing 12, no. 9 (2020): 1491. http://dx.doi.org/10.3390/rs12091491.

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Low-altitude remote sensing (RS) using unmanned aerial vehicles (UAVs) is a powerful tool in precision agriculture (PA). In that context, thermal RS has many potential uses. The surface temperature of plants changes rapidly under stress conditions, which makes thermal RS a useful tool for real-time detection of plant stress conditions. Current applications of UAV thermal RS include monitoring plant water stress, detecting plant diseases, assessing crop yield estimation, and plant phenotyping. However, the correct use and interpretation of thermal data are based on basic knowledge of the nature
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40

ZENKOUR, ASHRAF M. "STEADY-STATE THERMOELASTIC ANALYSIS OF A FUNCTIONALLY GRADED ROTATING ANNULAR DISK." International Journal of Structural Stability and Dynamics 06, no. 04 (2006): 559–74. http://dx.doi.org/10.1142/s0219455406002064.

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This paper is concerned with the thermoelastic analysis of a functionally graded rotating annular disk subjected to a nonuniform steady-state thermal load. Material properties are assumed to be temperature independent and continuously varying in the radial direction of the annular disk. The variations of Young's modulus, material density, thermal expansion and conductivity coefficients are represented by a novel exponential-law distribution through the radial direction of the disk, but Poission's ratio is kept constant. The governing differential equations are exactly satisfied at every point
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41

Rahimi, Javad, Esmaeil Poursaeidi, and Ehsan Khavasi. "Stress analysis of a second stage gas turbine blade under asymmetric thermal gradient." Mechanics & Industry 20, no. 6 (2019): 607. http://dx.doi.org/10.1051/meca/2019041.

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In this study the main causes of the failure of a GE-F9 second stage turbine blade were investigated. The stress distribution of the blade which has 6 cooling vents in three modes (with full cooling, closure of half of the cooling channels, and without cooling) was studied. A three dimensional model of the blade was built and the fluid flow on the blade was studied using the FVM method. The stress distribution due to centrifugal forces applied to the blade, temperature gradients and aerodynamic forces on the blade surface was calculated by the finite element model. The results show that the hi
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42

Ryu, Sang, Kyungchun Lee, Seungwhan Ma, and Youngman Kim. "Stress Behavior of FCC Metallic Thin Films During Thermal Evaporation." Journal of Nanoscience and Nanotechnology 7, no. 11 (2007): 4081–83. http://dx.doi.org/10.1166/jnn.2007.089.

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The development of stress in metallic thin films, monitored by in-situ curvature measurements during deposition, is analyzed. Three distinct stress regions including initial compressive, broad tensile, and incremental compressive stress were reported in terms of the film thickness (deposition time) by F. Spaepen. An experimental set-up was assembled for the in-situ curvature measurements utilizing vacuum thermal evaporation and multi-beam laser reflection points arrayed in x- and y-axis. The change in the spacing of laser reflected points was converted to the curvature of specimen, in turn, to
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43

Davis, N. G., J. Teisen, C. Schuh, and D. C. Dunand. "Solid-state foaming of titanium by superplastic expansion of argon-filled pores." Journal of Materials Research 16, no. 5 (2001): 1508–19. http://dx.doi.org/10.1557/jmr.2001.0210.

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Solid-state foaming of commercial purity titanium was achieved by hot-isostatic pressing of titanium powders in the presence of argon, followed by expansion of the resulting high-pressure argon bubbles at ambient pressure and elevated temperature. The foaming step was performed under isothermal conditions or during thermal cycling around the α/β allotropic temperature of titanium. Such thermal cycling is known to induce transformation superplasticity (TSP) in bulk titanium due to the complex superposition of internal transformation stresses and an external biasing stress; TSP was found to be a
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44

Bose, Tania, Minto Rattan, and Neeraj Chamoli. "Steady State Creep of Isotropic Rotating Composite Disc Under Thermal Gradation." International Journal of Applied Mechanics 09, no. 06 (2017): 1750077. http://dx.doi.org/10.1142/s1758825117500776.

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An attempt has been made to investigate steady state creep behavior of thermally graded isotropic discs rotating at elevated temperatures. For this purpose, composite discs of aluminum matrix reinforced with silicon carbide particulate have been taken. Modeling of stress and strain rate distributions for discs operating under linear thermal gradient has been done using von Mises’ yield criterion and threshold stress-based creep law. Similarly modeling has been done for discs operating under non-linear thermal gradient. The results are compared with the disc having a uniform temperature profile
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45

Chumakov, Yurii Aleksansdrovich, and Anna Georgievna Knyazeva. "Influence of Method Used for Calculating of Effective Properties on Stressed-Strain State of Composite Plate under Nonstationary Heating ." Applied Mechanics and Materials 756 (April 2015): 402–7. http://dx.doi.org/10.4028/www.scientific.net/amm.756.402.

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Numerical investigation of stressed-strain state composite plate is carried out for the conditions of one-axial loading and nonstationary heating. The state of plane stress was assumed. Various methods had been used for the calculation of effective properties: elastic constants and thermal expansion coefficient. The influence of the coupling between thermal and mechanical processes on temperature, stress and strains fields was investigated.
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46

Sun, Zhao Hui, and Zhen Tao Liu. "Research on Cylinder Head Thermal State Simulation." Advanced Materials Research 971-973 (June 2014): 668–71. http://dx.doi.org/10.4028/www.scientific.net/amr.971-973.668.

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The thermal state of the cylinder head has a huge influence on its fatigue and damage situation; therefore it is essential to accurately simulate the thermal state of the cylinder head during engine operation. In this paper, a method research of the cylinder head thermal state simulation test has been done. A thermal state simulation test bench has been launched, using induction heating and water-cooling to regulate the temperature. A series of cylinder head surface temperature field simulation tests has been accomplished. Compared to the actual engine test results, the temperature simulation
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47

Sakaki, T., T. Kuroki, and K. Sugimoto. "Creep of a Hollow Sphere." Journal of Applied Mechanics 57, no. 2 (1990): 276–81. http://dx.doi.org/10.1115/1.2891985.

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Using internal stress arising from a spherically symmetric, finite plastic strain, creep of a hollow sphere subjected to inner and outer pressures, and also thermal stress, is discussed. If computer-aided numerical calculation method is used, creep is easily followed up to a finite plastic strain range including initial transient creep, whatever type of creep law is employed. If assumed in a steady state, creep rate, stress, small plastic strain leading to a stress state in steady creep, and another small plastic strain relaxing thermal stress are analytically obtained. Numerical method is als
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48

Liu, Wen-qi, and Jun-he Lian. "Stress-state dependence of dynamic strain aging: Thermal hardening and blue brittleness." International Journal of Minerals, Metallurgy and Materials 28, no. 5 (2021): 854–66. http://dx.doi.org/10.1007/s12613-021-2250-1.

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AbstractThis study aims to discover the stress-state dependence of the dynamic strain aging (DSA) effect on the deformation and fracture behavior of high-strength dual-phase (DP) steel at different deformation temperatures (25–400°C) and reveal the damage mechanisms under these various configurations. To achieve different stress states, predesigned specimens with different geometric features were used. Scanning electron microscopy was applied to analyze the fracture modes (e.g., dimple or shear mode) and underlying damage mechanism of the investigated material. DSA is present in this DP steel,
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Tribel’skii, I. A., and A. V. Zubarev. "Stress-strain state and thermal state of rubber-cord casings of highly elastic couplings." Russian Engineering Research 28, no. 12 (2008): 1159–64. http://dx.doi.org/10.3103/s1068798x08120022.

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Takeuchi, Y. R., and K. Kokini. "Thermal Fracture of Multilayer Ceramic Thermal Barrier Coatings." Journal of Engineering for Gas Turbines and Power 116, no. 1 (1994): 266–71. http://dx.doi.org/10.1115/1.2906803.

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Controlled experiments and a corresponding analytical model were developed to investigate the reasons for crack initiation in multilayer ceramic thermal barrier coatings. The experiments and model determined that surface cracks form as a result of tensile stresses created following stress relaxation in the ceramic at steady-state high temperatures (about 900°C–1100°C). Interface cracks generated by out-of-plane stresses are affected by the presence of these surface cracks and thermal transients and, possibly, edge effects.
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