Analytical model for the nonlinear buckling responses of the confined polyhedral FGP-GPLs lining subjected to crown point loading

Xiao, Xiong; Zhang, Qian; Zheng, Junxing; Li, Zhaochao

doi:10.1016/j.engstruct.2023.115780

Cited by 49 publications

(14 citation statements)

References 52 publications

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“…Analysis of doubly curved shells because of their general shapes and geometries is very important for designer and scientists. The governing equations and the corresponding results of doubly curved shells may be reduced to arrive the results of more famous and applicable structures such as cylindrical shells and spherical shells [ [1] , [2] , [3] , [4] , [5] , [6] , [7] , [8] ]. Concurrently intelligent materials are applicable in electromechanical systems to sense a deflection or stress or to perform a defined work known as sensor and actuator applications.…”

Section: Introductionmentioning

confidence: 99%

A general electroelastic analysis of piezoelectric shells based on levy-type solution and eigenvalue-eigenvector method

Qi,

Teng,

Ali

et al. 2023

Heliyon

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Section: Introductionmentioning

confidence: 99%

A general electroelastic analysis of piezoelectric shells based on levy-type solution and eigenvalue-eigenvector method

Qi,

Teng,

Ali

et al. 2023

Heliyon

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“…In various application domains, theoretical research is indispensable. [19][20][21][22] It enables a profound understanding of the essence and principles of problems, revealing regularities and correlations. At present, in the context of continuous development of composite materials, [23][24][25][26][27] beam structures, as important components widely applied in various engineering structures, have been subject to in-depth research in their related theories by the academic community.…”

Section: Introductionmentioning

confidence: 99%

Theoretical solutions of short glass fiber/polyurethane composite beams based on Hamiltonian principle

Zhao,

Zhou,

Zhu

et al. 2023

Polymer Composites

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Shape memory polymers (SMP) and its composites (SMPC) have gained popularity for their potential in intelligent structures fields. Developing a reliable mechanical model to accurately describe mechanical behavior of its intelligent structures is important for both theory and practice. This paper presents a novel mechanical model for describing the mechanical behavior of short glass fiber/polyurethane (GF/PU) composite beams, based on a constitutive model of SMP and incorporating principles from composite mechanics theory, the Hamiltonian principle and Euler–Bernoulli beam theory. The model includes kinematic equations and material parameter equations. Based on the constitutive equations of SMP, coupled with Euler–Bernoulli beam theory and Hamilton's principle, the kinematic equations of GF/PU composite beam are established. Additionally, a correction factor was proposed and employed to modify the material parameter equation of SMP, which was then combined with the mechanics theory of composite materials to establish a material parameter equation for composite beams. Taking a simply supported beam as an example, we solve the model using Fourier method and simulate and analyze the material parameters properties, static and viscous mechanical behaviors properties, and shape memory behavior properties of the GF/PU composite beam. The results show that the GF volume fraction, temperature correction coefficient, regularization parameter, and contact parameter have a significant impact on the material parameters of GF/PU composite materials and the material parameters of composite beams have important effects on their mechanical properties. By adjusting material parameters, ideal mechanical properties can be obtained for the GF/PU composite beam. This study provides a theoretical foundation for intelligent beam design and analysis based on SMP and SMPC.Highlights A novel viscoelastic mechanical model for GF/PU composite beam is proposed. Effect of composite components on GF/PU composite is studied. Kinematic equations based on Hamiltonian principle is established. Material parameter equation including corrected parameter is established.

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“…Numerous studies have been undertaken to analyze the behavior of diverse materials and structures subjected to distinct loading conditions [34][35][36]. Thermal loads, caused by braking on the wheel tread, can reach temperatures as high as 840 • C, leading to a complex alternation of thermo-mechanical loads [37][38][39].…”

Section: Introductionmentioning

confidence: 99%

High-Cycle Fatigue Behavior of D2 Wheel Steel under Uniaxial and Multiaxial Loading Conditions for Potential Applications in the Railway Industry

Zhao

2023

Crystals

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This study investigates the fatigue damage evolution mechanisms of D2 wheel steel under high-cycle uniaxial and multiaxial loading conditions, with a focus on determining the fatigue crack growth threshold (FCGT). Uniaxial and multiaxial FCGT tests were performed on pre-cracked D2 wheel steel specimens subjected to high-frequency cyclic loading at stress ratios (R) of 0.1. The results indicate that the FCGT for D2 wheel steel under uniaxial loading conditions ranges between 8–9 MPa.m0.5, while under multiaxial loading conditions, it ranges between 6–9 MPa.m0.5. Scanning electron microscopy analysis revealed differences in the crack propagation mechanisms between the uniaxial and multiaxial tests, with cracks deviating from their path and following the microstructure in the uniaxial tests, and cracks propagating along planes of weakness in the multiaxial tests. These findings provide insights into the high-cycle fatigue behavior of D2 wheel steel under different loading conditions for potential applications in the railway industry.

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Analytical model for the nonlinear buckling responses of the confined polyhedral FGP-GPLs lining subjected to crown point loading

Cited by 49 publications

References 52 publications

A general electroelastic analysis of piezoelectric shells based on levy-type solution and eigenvalue-eigenvector method

A general electroelastic analysis of piezoelectric shells based on levy-type solution and eigenvalue-eigenvector method

Theoretical solutions of short glass fiber/polyurethane composite beams based on Hamiltonian principle

High-Cycle Fatigue Behavior of D2 Wheel Steel under Uniaxial and Multiaxial Loading Conditions for Potential Applications in the Railway Industry

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