Transient response for a half-space with variable thermal conductivity and diffusivity under thermal and chemical shock

Chenlin, Li; Guo, Hongjian; Tian, Xiaoyong; Tian, Xiaogeng

doi:10.1080/01495739.2016.1218745

Cited by 53 publications

(10 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several theories have been established to explain the thermal conduction mechanism of PMCs, including the thermal conduction path theory, [13][14][15] the thermal percolation theory, 16,17 and the thermoelastic coefficient theory. 18,19 Among them, only the first two are widely used to explain the experiment phenomena in practice. When a small quantity of fillers is added, fillers are isolated by the surrounding polymers and cannot contact each other directly, which is like "islands" distributed in the "sea", as shown in Figure 1a.…”

Section: Thermal Conduction Mechanism Of Polymer Compositesmentioning

confidence: 99%

Recent advances in thermally conductive polymer composites

Huang

Hao

et al. 2022

High Performance Polymers

View full text Add to dashboard Cite

Polymer matrix composites (PMCs) with high thermal conductivity (TC) play an important role in improving the heat dissipation capacity of a new generation of electronic devices, particularly for 5G and aviation applications. Over the last few decades, considerable efforts have been made in the fabrication of highly thermally conductive PMCs. Advances in the thermal conduction mechanism of polymer composites are induced to, and then commonly used thermally conductive fillers are presented. In the following, the factors affecting the TC of polymer composites are discussed in detail, including fillers, interfaces, polymer matrices and processing technologies. Special attention is paid to the thermally conductive fillers. Then, some application areas of thermally conductive polymer composites are introduced. Finally, the deficiencies and future development trends in this research field are put forward. It is expected that this review will provide some beneficial inspiration in improving the TC of PMCs.

show abstract

Section: Thermal Conduction Mechanism Of Polymer Compositesmentioning

confidence: 99%

Recent advances in thermally conductive polymer composites

Huang

Hao

et al. 2022

High Performance Polymers

View full text Add to dashboard Cite

show abstract

“…In the past decade, many models in viscoelasticity, bioengineering, and heat conduction [32][33][34] have been effectively revised using fractional order calculus. As a result, fractional order should be incorporated into generalized thermoelastic diffusion theory [35].…”

Section: Introductionmentioning

confidence: 99%

Dual‐phase‐lag thermoelastic diffusion analysis of a size‐dependent microplate based on modified fractional‐order heat conduction model

Tian

Peng

2022

Z Angew Math Mech

View full text Add to dashboard Cite

With the rapid evolution of small-scale devices, the effect of size dependence on elastic deformation becomes more and more obvious. Furthermore, the physical processes usually involve memory and inheritance for some anomalous diffusion that the constitutive relation does not obey the standard gradient rate. Owing to capturing the memory-dependent effect and the size-dependent effect, the existing thermoelastic diffusion theories cannot be applicable. To further refine the thermoelastic diffusion model for micro/nano structures, a refined nonlocal thermoelastic diffusion model is developed by combining the fractional-order dual-phase-lag (DPL) heat conduction model and fractional-order diffusion model in this paper. In addition, the Tempered-Caputo (TC) definition is an extension of the Caputo definition without the fractional derivative of the singular kernel, which is adopted for the first time to reflect the memory-dependent effects of heat conduction and stress-strain relationship. Then, this new model is applied to investigating the transient response of an elastic microplate subjected to a sinusoidal thermal loading. The corresponding governing equations are formulated and solved by the Laplace transform method and its numerical inversion. In calculation, the influences of the fractional-order parameter, the tempered parameter and the nonlocal parameter on the variations of the considered quantities are presented and discussed in detail. It is expected to provide new insights into thermoelastic diffusion behaviors of structures at the micro/nanoscale.

show abstract

“…Abo-Dahab and Abbas [26] evaluated the thermal shock problem of generalized magneto-thermoelasticity and concluded that as the variable thermal conductivity increases, the temperature increases, whereas the radial and hoop stresses decrease. ese studies demonstrated that variable thermal conductivity significantly influences the material properties and the distribution of field quantities [27]. Instantaneous changes of temperature can markedly change the thermal conductivity of a material.…”

Section: Introductionmentioning

confidence: 99%

Effect of Variable Thermal Conductivity on the Generalized Thermoelasticity Problems in a Fiber-Reinforced Anisotropic Half-Space

Xiong

Niu

2019

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

Fiber-reinforced materials have widespread applications, which prompt the study of the effect of fiber reinforcement. Research studies have indicated that thermal conductivity cannot be considered as a constant, which is closely related to temperature change. Based on those studies, we investigate the fiber-reinforced generalized thermoelasticity problem under thermal stress, with the consideration of the effect of temperature-dependent variable thermal conductivity. The problem is assessed according to the L-S theory. A fiber-reinforced anisotropic half-space is selected as the research model, and a region of its surface is subjected to a transient thermal shock. The time-domain finite element method is applied to analyze the nonlinear problem and derives the governing equations. The nondimensional displacement, stress, and temperature of the material are obtained and illustrated graphically. The numerical results reveal that the variable conductivity significantly influences the distribution of the field quantities under the fiber-reinforced effect. And also, the boundary point of thermal shock is the most affected. The obtained results in this paper can be applied to design the fiber-reinforced anisotropic composites under thermal load to satisfy some particular engineering requirements.

show abstract

Transient response for a half-space with variable thermal conductivity and diffusivity under thermal and chemical shock

Cited by 53 publications

References 22 publications

Recent advances in thermally conductive polymer composites

Recent advances in thermally conductive polymer composites

Dual‐phase‐lag thermoelastic diffusion analysis of a size‐dependent microplate based on modified fractional‐order heat conduction model

Effect of Variable Thermal Conductivity on the Generalized Thermoelasticity Problems in a Fiber-Reinforced Anisotropic Half-Space

Contact Info

Product

Resources

About