4.7 Article

Non-Fourier thermoelastic interaction of two collinear cracks in a functionally graded layer

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Engineering, Multidisciplinary

Dynamics of thermoelastic Lamb waves in functionally graded nanoplates based on the modified nonlocal theory

Xianhui Wang et al.

Summary: Based on the integral form of the modified nonlocal theory, the dispersion and attenuation characteristics of thermoelastic Lamb waves in functionally graded material nanoplates are investigated. An improved Legendre polynomial series approach is proposed to solve the integration calculation problem, and it can directly obtain the complex wave number solutions without iteration. The nonlocal effect on attenuation is more significant than that on phase velocity, especially at the frequency of the maximal attenuation.

APPLIED MATHEMATICAL MODELLING (2023)

Article Engineering, Multidisciplinary

Design and performance enhancement of thermal-fluid system based on topology optimization

Guanghui Wang et al.

Summary: The present work is based on the Finite Element Method and a new density approach. A new dimensionless objective function is proposed, combining minimum energy consumption and maximum thermal performance in topology optimization. The effectiveness of the approach and the optimized structure are verified. The results show that the alternative interpolation function solves the checkerboard and gray cell problems, the new objective function reduces vibration, and the Finite Element Method outperforms the Finite Volume Method and Lattice Boltzmann Method in objective function value. The topology structure exhibits superior comprehensive performance and reduces energy consumption in heat transfer.

APPLIED MATHEMATICAL MODELLING (2023)

Article Mechanics

Fracture of brittle material with two 3D parallel internal cracks under thermal stress: Experimental and numerical analysis

Yunfei Wang et al.

Summary: This study investigates the expansion characteristics and interaction of parallel internal cracks under temperature loading using the 3D internal laser-engraved crack method. The results show that the big crack inhibits and shields the expansion of the small crack. Additionally, the simulation results of the subcritical crack growth criterion align better with the physical test results, indicating a subcritical growth phenomenon in parallel crack propagation under temperature load.

ENGINEERING FRACTURE MECHANICS (2023)

Article Mechanics

Role of crack length, crack spacing and layer thickness ratio in the electric potential and temperature of thermoelectric bi-materials systems

Dongdong Jiang et al.

Summary: The influence of dual collinear interface cracks on the electric potential and temperature of thermoelectric bi-materials is studied in this paper. Analytical solutions are obtained by transforming the nonlinear governing equations and the role of crack parameters in the electric potential and temperature is revealed through numerical experiments.

ENGINEERING FRACTURE MECHANICS (2022)

Article Thermodynamics

A dual-phase-lag (DPL) transient non-Fourier heat transfer analysis of functional graded cylindrical material under axial heat flux

M. Hadi Ghasemi et al.

Summary: This study presents an analytic solution for the dual-phase-lag heat conduction in a functional graded cylindrical material. The results show that the dual-phase-lag model reaches steady temperature faster than the single-phase-lag model. The temperature stability in functional graded materials is influenced by the heterogeneity coefficient. The study provides a straightforward multivariate analytical solution for the non-Fourier conduction equation in a finite cylinder with functional graded materials and any boundary conditions.

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER (2022)

Article Mechanics

Two collinear cracks under combined quadratic thermo-electro-elastic loading

B. Wu et al.

Summary: The fracture problem of piezoelectric materials in multi-field coupling is investigated in this paper. An analytical solution for the intensity factors of collinear cracks under thermal-electro-elastic loads is obtained, and the effectiveness of the proposed method is demonstrated through a numerical example.

ACTA MECHANICA (2022)

Article Mathematics, Applied

Lie group analysis and robust computational approach to examine mass transport process using Jeffrey fluid model

Muhammad Mubashir Bhatti et al.

Summary: This article deals with the chemically reactive mass transport mechanism on the Jeffrey fluid model in the presence of extrinsic magnetic impact. Lie group transformations are used to formulate the mathematical modeling of momentum and concentration equations. The numerical results are discussed and compared with the built-in command Bvp4c in Matlab.

APPLIED MATHEMATICS AND COMPUTATION (2022)

Article Mathematics, Applied

Interaction among offset parallel cracks in an orthotropic plane under thermo-mechanical loading

Anshika Tanwar et al.

Summary: This article deals with the problem of three thermally insulated cracks embedded in a fibrous composite material subjected to thermo-mechanical loading. Using mathematical modeling and numerical analysis, the numerical values of the stress intensity factors at the crack tips are obtained, and the effect of crack interactions on the stress intensity factors is studied.

ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK (2022)

Article Chemistry, Multidisciplinary

Rheological Modeling of Metallic Oxide Nanoparticles Containing Non-Newtonian Nanofluids and Potential Investigation of Heat and Mass Flow Characteristics

Muhammad Rizwan et al.

Summary: Nanofluids have improved properties that can be used to solve industrial and engineering problems. This study discusses the flow characteristics of nanofluids using experimental data and a mathematical model. The results show that nanoparticle concentration and diameter have an impact on velocity and temperature distributions.

NANOMATERIALS (2022)

Article Mechanics

The plane waves of generalized thermo-microstretch porous medium with temperature-dependent elastic properties under three theories

Mohamed I. A. Othman et al.

Summary: This paper employs various generalized theories of thermoelasticity to study the behavior of a microstretched medium consisting of voids under temperature dependency and relaxation time. By comparing the experimental results with existing theories, the impact of void parameters and relaxation times on temperature dependency and stress variations is determined.

ACTA MECHANICA (2022)

Article Mechanics

Thermomechanical fracture behaviour of interacting microdefects in thermal barrier coatings

L. Y. Lim et al.

Summary: The interaction between the main crack and microdefects in thermal barrier coating is crucial for the spallation failure of the ceramic top coat. We investigated the effect of microdefects on the stress intensity factor of the main crack using micromechanics-based analytical and numerical techniques. Additionally, we studied the shielding and amplification effect of microdefects on the propagation of a semi-infinite crack. Our findings provide insights into the performance and failure mechanism of thermal barrier coatings.

ACTA MECHANICA (2022)

Article Engineering, Multidisciplinary

Thermal buckling and free vibration of viscoelastic functionally graded sandwich shells with tunable auxetic honeycomb core

Y. S. Li et al.

Summary: This paper investigates the thermal buckling and free vibration of a viscoelastic functionally graded sandwich shell with a tunable auxetic honeycomb core. The viscoelastic behavior of the skins and core is modeled using the complex modulus approach and the elastic-viscoelastic correspondence principle. The Poisson's ratio of the auxetic honeycomb core can be adjusted based on an angle parameter. The equations of motion are derived using Hamilton's principle, and an analytical solution for a simply supported shell is obtained using Navier's solution procedure. The effects of geometry parameters, temperature rise, and tunable auxetic honeycomb core parameters are studied.

APPLIED MATHEMATICAL MODELLING (2022)

Article Mechanics

A hybrid algorithm for modeling and studying of the effect of material and mechanical uncertainties on stability of sandwich FGM materials under thermal shock

Majid Khayat et al.

Summary: This study investigates the dynamic stability of FGM cylindrical shells subjected to thermal and mechanical stresses based on Budiansky and Ruth's criterion. The point estimation method and an artificial neural network-based algorithm are used to simulate uncertainty and extract statistical properties. The research highlights the significant influence of initial conditions, thermal shock distribution type, and FGM core properties on the stochastic properties of sandwich FGM cylindrical shells.

COMPOSITE STRUCTURES (2022)

Article Chemistry, Multidisciplinary

Thermoelastic Analysis in Poro-Elastic Materials Using a TPL Model

Aatef Hobiny et al.

Summary: The main aim of this paper is to study the impact of delay times in a poro-elastic medium using the finite element approach and the three-phase lag thermo-elastic theory. The governing equations were obtained for a three-phase lag model with six delay times. Consideration was given to a one-dimensional application of a poro-elastic half-space. The numerical results were presented in graphical form and compared the differences between the three-phase delay (TPL) and the Green-Naghdi with and without energy dissipation (GNIII) models.

APPLIED SCIENCES-BASEL (2022)

Article Engineering, Mechanical

Weight functions and thermal stress intensity factors for two symmetric non-collinear radial cracks in cylinders

S. M. Nabavi et al.

Summary: This paper investigates the weight function of a cylinder with two symmetric non-collinear radial cracks, and employs finite element software to determine the unknown parameters of the weight function. The point-by-point accuracy of the derived weight function is validated using Green's function, and the results are compared with finite element analysis.

THEORETICAL AND APPLIED FRACTURE MECHANICS (2022)

Article Engineering, Multidisciplinary

Thermal shock fracture of a crack in a functionally gradient half-space based on the memory-dependent heat conduction model

Zhangna Xue et al.

APPLIED MATHEMATICAL MODELLING (2020)

Article Materials Science, Multidisciplinary

Study of Crack Interaction Effects Under Thermal Loading by Digital Photoelasticity and Finite Elements

A. Vivekanandan et al.

EXPERIMENTAL MECHANICS (2020)

Article Multidisciplinary Sciences

On the Effect of Thomson and Initial Stress in a Thermo-Porous Elastic Solid under G-N Electromagnetic Theory

Elsayed M. Abd-Elaziz et al.

SYMMETRY-BASEL (2019)

Article Materials Science, Multidisciplinary

Heat Conduction in Multilayered Thermoelectric Materials with Multiple Cracks

Shenghu Ding et al.

ACTA MECHANICA SOLIDA SINICA (2018)

Article Thermodynamics

Dual-phase-lag heat conduction in a furnace wall made of functionally graded materials

Yu-Ching Yang et al.

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER (2016)

Article Mechanics

The collinear crack problem for an orthotropic functionally graded coating-substrate structure

Sheng-Hu Ding et al.

ARCHIVE OF APPLIED MECHANICS (2014)

Article Engineering, Multidisciplinary

Thermoelastic analysis of a partially insulated crack in a strip under thermal impact loading using the hyperbolic heat conduction theory

Keqiang Hu et al.

INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE (2012)

Article Engineering, Mechanical

On collinear microcrack-inclusion arrays interaction and related problems

T Profant et al.

THEORETICAL AND APPLIED FRACTURE MECHANICS (2005)

Article Engineering, Multidisciplinary

A partially insulated embedded crack in an infinite functionally graded medium under thermo-mechanical loading

S Ei-Borgi et al.

INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE (2004)

Article Mechanics

Fracture analysis of electromagnetic thermoelastic solids

CF Gao et al.

EUROPEAN JOURNAL OF MECHANICS A-SOLIDS (2003)

Article Materials Science, Multidisciplinary

Collinear permeable cracks in thermopiezoelectric materials

CF Gao et al.

MECHANICS OF MATERIALS (2001)