Influence of Method Used for Calculating of Effective Properties on Stressed-Strain State of Composite Plate under Nonstationary Heating

2015 ◽  
Vol 756 ◽  
pp. 402-407 ◽  
Author(s):  
Yurii Aleksansdrovich Chumakov ◽  
Anna Georgievna Knyazeva
Keyword(s):  
Thermal Expansion ◽  
Numerical Investigation ◽  
Thermal Expansion Coefficient ◽  
Elastic Constants ◽  
Plane Stress ◽  
Composite Plate ◽  
Strain State ◽  
Effective Properties ◽  
Axial Loading ◽  
Nonstationary Heating

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.

Theoretical prediction of structural stability, electronic and elastic properties of ZrSi2 under pressure

RSC Advances ◽  
2015 ◽  
Vol 5 (46) ◽  
pp. 36779-36786 ◽  
Author(s):  
Ruru Hao ◽  
Xinyu Zhang ◽  
Jiaqian Qin ◽  
Suhong Zhang ◽  
Jinliang Ning ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Theoretical Prediction ◽  
Density Distribution ◽  
Charge Density ◽  
Specific Heat ◽  
Thermal Expansion Coefficient ◽  
Elastic Constants ◽  
Thermodynamic Data ◽  
Charge Density Distribution ◽  
Different Temperatures

The elastic constants, DOS, charge density distribution and the fundamental thermodynamic data such as the specific heat, thermal expansion coefficient and Debye temperature under different temperatures and pressures are theoretically determined.

Elastic constants and thermal expansion coefficient of metastable C49 TiSi2

1993 ◽  
Vol 73 (6) ◽  
pp. 2816-2820 ◽  
Author(s):  
J. F. Jongste ◽  
O. B. Loopstra ◽  
G. C. A. M. Janssen ◽  
S. Radelaar
Keyword(s):  
Thermal Expansion ◽  
Thermal Expansion Coefficient ◽  
Expansion Coefficient ◽  
Elastic Constants

Ab initio modelling of methane hydrate thermophysical properties

2016 ◽  
Vol 18 (15) ◽  
pp. 10320-10328 ◽  
Author(s):  
Z. M. Jendi ◽  
P. Servio ◽  
A. D. Rey
Keyword(s):  
Density Functional Theory ◽  
Heat Capacity ◽  
Thermal Expansion ◽  
Ab Initio ◽  
Thermal Expansion Coefficient ◽  
Elastic Constants ◽  
Thermophysical Properties ◽  
Methane Hydrate ◽  
Density Functional ◽  
Functional Theory

Using density functional theory, the second-order elastic constants, heat capacity, compressibility, and thermal expansion coefficient of methane hydrate were calculated.

scholarly journals Out-of-Plane Thermal Expansion Coefficient and Biaxial Young’s Modulus of Sputtered ITO Thin Films

Coatings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 153
Author(s):  
Chuen-Lin Tien ◽  
Tsai-Wei Lin
Keyword(s):  
Thin Films ◽  
Thermal Expansion ◽  
Thermal Stress ◽  
Young’S Modulus ◽  
Thermal Expansion Coefficient ◽  
Expansion Coefficient ◽  
Young's Modulus ◽  
Heating Temperature ◽  
Glass Substrates ◽  
Ito Thin Films

This paper proposes a measuring apparatus and method for simultaneous determination of the thermal expansion coefficient and biaxial Young’s modulus of indium tin oxide (ITO) thin films. ITO thin films simultaneously coated on N-BK7 and S-TIM35 glass substrates were prepared by direct current (DC) magnetron sputtering deposition. The thermo-mechanical parameters of ITO thin films were investigated experimentally. Thermal stress in sputtered ITO films was evaluated by an improved Twyman–Green interferometer associated with wavelet transform at different temperatures. When the heating temperature increased from 30 °C to 100 °C, the tensile thermal stress of ITO thin films increased. The increase in substrate temperature led to the decrease of total residual stress deposited on two glass substrates. A linear relationship between the thermal stress and substrate heating temperature was found. The thermal expansion coefficient and biaxial Young’s modulus of the films were measured by the double substrate method. The results show that the out of plane thermal expansion coefficient and biaxial Young’s modulus of the ITO film were 5.81 × 10−6 °C−1 and 475 GPa.

scholarly journals Alternative of bone china and porcelain as ceramic hand molds for rubber latex glove films formation via dipping process

2020 ◽  
Vol 59 (1) ◽  
pp. 523-537
Author(s):  
Chaturaphat Tharasana ◽  
Aniruj Wongaunjai ◽  
Puwitoo Sornsanee ◽  
Vichasharn Jitprarop ◽  
Nuchnapa Tangboriboon
Keyword(s):  
Thermal Expansion ◽  
Flexural Strength ◽  
Thermal Expansion Coefficient ◽  
Expansion Coefficient ◽  
Mold Surface ◽  
Rubber Latex ◽  
Latex Glove ◽  
Bone China ◽  
Synthetic Rubber ◽  
Natural And Synthetic

AbstractIn general, the main compositions of porcelain and bone china composed of 54-65%wt silica (SiO2), 23-34% wt alumina (Al2O3) and 0.2-0.7%wt calcium oxide (CaO) suitable for preparation high quality ceramic products such as soft-hard porcelain products for teeth and bones, bioceramics, IC substrate and magneto-optoelectroceramics. The quality of ceramic hand mold is depended on raw material and its properties (pH, ionic strength, solid-liquid surface tension, particle size distribution, specific surface area, porosity, density, microstructure, weight ratio between solid and water, drying time, and firing temperatures). The suitable firing conditions for porcelain and bone china hand-mold preparation were firing at 1270°C for 10 h which resulted in superior working molds for making latex films from natural and synthetic rubber. The obtained fired porcelain hand molds at 1270°C for 10 h provided good chemical durability (10%NaOH, 5%HCl and 10%wtNaCl), low thermal expansion coefficient (5.8570 × 10−6 (°C−1)), good compressive (179.40 MPa) and good flexural strength (86 MPa). While thermal expansion coefficient, compressive and flexural strength of obtained fired bone china hand molds are equal to 6.9230 × 10−6 (°C−1), 128.40 and 73.70 MPa, respectively, good acid-base-salt resistance, a smooth mold surface, and easy hand mold fabrication. Both obtained porcelain and bone china hand molds are a low production cost, making them suitable for natural and synthetic rubber latex glove formation.

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