Experimental Study on High-Cycle Fatigue Behavior of GFRP-Steel Sleeve Composite Cross Arms

Wang, Jiantao; Tan, Ning; Zhou, Shiming; Sun, Qing

doi:10.1155/2018/6346080

Cited by 4 publications

(3 citation statements)

References 35 publications

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“…The decrease in stiffness during fatigue damage is indirectly manifested in a change in the modal characteristics (in particular, natural frequencies) of structures and samples. As it is shown in the studies [3][4][5][6][7][8][9], this effect is observed both in the case of metals and in the case of composite materials. The simplest way to determine the natural frequency is realized when fatigue tests are carried out on resonant machines [9].…”

Section: Introductionmentioning

confidence: 54%

Change of the Elastic Characteristics of a Fiber-Reinforced Laminate as a Result of Progressive Fatigue Damage

Nikhamkin

Solomonov

2021

SSP

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It is a widely known fact that the stiffness of polymer composite materials decreases with the accumulation of fatigue damage under cyclic loading. The purpose of this article is to develop a method and obtain experimental data on decrease of the elastic characteristics of a fiber-reinforced laminate, as a result of progressive fatigue damage. The developed technique consists of two stages. At the first one, the natural frequencies and eigenmodes of the samples during their fatigue testing are experimentally obtained. The dependences of the natural frequencies of the samples on the number of loading cycles are found. At the second stage, the four elasticity parameters of the laminate monolayer (two Young modules, the shear module and Poisson's ratio) are identified via the natural frequencies. The inverse numerical/experimental technique for material properties identification is applied. The dependences of the natural frequencies and mentioned elastic characteristics on the relative fatigue life are obtained as experimental results of both modal and fatigue tests. The results can be useful to study the fatigue behavior of the investigated materials and to create methods for calculating fatigue life.

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Section: Introductionmentioning

confidence: 54%

Change of the Elastic Characteristics of a Fiber-Reinforced Laminate as a Result of Progressive Fatigue Damage

Nikhamkin

Solomonov

2021

SSP

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“…Previous research has made some progress in evaluating the thermodynamic properties of composite materials, but there are still deficiencies. For example, most studies focus on the material properties at room temperature and pay insufficient attention to the fatigue behavior and thermal stress analysis of composite materials under extreme temperature cycling conditions [18][19][20][21]. Additionally, existing methods have not fully considered the non-linear behavior and temperature dependency of materials when simulating thermal expansion and fatigue damage, limiting the predictive accuracy and application scope of the models [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic Properties of Composite Material Bridges Under Thermal Cycling

Chen,

Zhang,

Song

et al. 2024

IJHT

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The application of composite materials in bridge engineering is increasingly widespread, thanks to their excellent properties such as high strength, low density, and good corrosion resistance. However, in practical applications, composite material bridges often face complex thermal environments, especially thermal cycling, which imposes higher demands on the thermodynamic properties of the materials. Thermal cycling can cause not only heat transfer and expansion of composite materials but may also lead to material fatigue damage, thereby affecting the stability and safety of the bridge structure. Although existing research has some understanding of the thermal characteristics of composite materials, studies on fatigue damage mechanisms and thermal stress analysis under extreme temperature cycling conditions are still insufficient. This paper starts with the study of the thermodynamic properties of composite material bridges under thermal cycling. On the one hand, it analyzes the heat transfer and expansion deformation process of composite material bridges under thermal cycling. On the other hand, a fatigue damage constitutive model is established, and tests for model modification and constraint conditions are conducted. The research results show that the revised constitutive model can more accurately describe the fatigue damage behavior of composite materials under thermal cycling, which has important practical and theoretical value for guiding the design, construction, and maintenance of bridges.

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“…The long-lasting performance of composite cross arms has been employed to replace wooden structures in transmission and distribution towers. One of the benefits of composite cross arms is their endurance; they may also be employed as cantilever beams for streetlight support structures due to their strength, durability, and lightweight features [10][11][12]. As an alternative, pultruded glass fiber-reinforced polymer (PGFRP) composite was proposed by many researchers to replace the wooden cross arm [13], such as the implementation of PGFRP composite in a 132 kV tower at transmission lines from Pekan town at the Tanjung Batu line [7].…”

Section: Introductionmentioning

confidence: 99%

Conceptual Design of a Sustainable Bionanocomposite Bracket for a Transmission Tower’s Cross Arm Using a Hybrid Concurrent Engineering Approach

et al. 2023

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This research article elaborates on the conceptual design development of a sustainable bionanocomposite bracket for bracing installation in composite cross arm structures. The product design development employed the hybrid techniques of the theory of inventive problem solving (TRIZ), morphological chart, and analytic network process (ANP) methods. The current bracket design in the braced composite cross arm is composed of heavy and easy-to-rust steel material. Therefore, this research aims to develop a new bionanocomposite bracket design to replace the heavy and easy-to-rust steel bracket. This research also aims to implement a concurrent engineering approach for the conceptual design of bionanocomposite bracket installation to enhance the overall insulation performance. A preliminary process was implemented, which covered the relationship between the current problem of the design and design planning to build a proper direction to create a new design product using TRIZ. Later, the TRIZ inventive solution was selected based on the engineering contradiction matrix with specific design strategies. From the design strategies, the results were refined in a morphological chart to form several conceptual designs to select the ANP technique to systematically develop the final conceptual design of the bionanocomposite bracket for the cross arm component. The outcomes showed that Concept Design 1 scored the highest and ranked first among the four proposed designs. The challenges of the bionanocomposite bracket design for cross arm structures and the improvement criteria in concurrent engineering are also presented.

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Experimental Study on High-Cycle Fatigue Behavior of GFRP-Steel Sleeve Composite Cross Arms

Cited by 4 publications

References 35 publications

Change of the Elastic Characteristics of a Fiber-Reinforced Laminate as a Result of Progressive Fatigue Damage

Change of the Elastic Characteristics of a Fiber-Reinforced Laminate as a Result of Progressive Fatigue Damage

Thermodynamic Properties of Composite Material Bridges Under Thermal Cycling

Conceptual Design of a Sustainable Bionanocomposite Bracket for a Transmission Tower’s Cross Arm Using a Hybrid Concurrent Engineering Approach

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