Deflection test and modal analysis of lightweight timber floors

Zhao, Xinyue; Huang, Yujie; Fu, Hongxun; Wang, Yunlu; Wang, Zheng; Sayed, Usama

doi:10.1016/j.jobab.2021.03.004

Cited by 15 publications

(10 citation statements)

References 12 publications

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“…With the improvement of living standards, the demand for environmentally friendly, lightweight, and safe structures has increased dramatically [1][2][3][4][5]. Bamboo as a sustainable alternative to traditional building materials, including wood, has started to gain attention [6][7][8][9][10][11][12][13][14][15] due to its short time to harvest [16,17], the variety of species, as well as the high yield, and the ability to reach a maximum height of 15-30 meters in 2-4 months, and the maximum strength in 3-8 years [18,19].…”

Section: Introductionmentioning

confidence: 99%

A Review of Basic Mechanical Behavior of Laminated Bamboo Lumber

Dauletbek¹,

Li²,

Lorenzo³

et al. 2022

Journal of Renewable Materials

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Over the past decade, the physical and mechanical performances of laminated bamboo lumber (LBL)-a bamboobased structural material, have been extensively studied using experimental, analytical, and numerical approaches. This paper presents a review of existing knowledge in the literature about the mechanical properties of LBL. The paper involved the review of the response of LBL to different types of loading such as tension, bending, compression, and shear. Based on results of the literature reviewed, the strength of LBL parallel to grain was 90-124 MPa with MOE of 10700 MPa in tension, 29. 55-72.60 MPa, and MOE of 8396-11022 MPa in compression, 63.87-128.4 MPa, and MOE of 8320-10912 MPa in bending, and 7.15-17.5 MPa in shear. The average strength of LBL was similar and in some cases exceeded the average values of bamboo-or wood-based materials, while the variability of its mechanical parameters was lower. The variability in strength values of LBL was affected by bamboo species, density and thickness of bamboo strips, growth portion, type of treatment, strips arrangements, and type of adhesive which in turn calls for classification of LBL by strength grades, degree of hardness, the capability of impregnation and penetration, as well as by areas of application in construction. The study provided and discussed concluding observations, the current research gap, and future research directions on the mechanical properties of LBL.

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Section: Introductionmentioning

confidence: 99%

A Review of Basic Mechanical Behavior of Laminated Bamboo Lumber

Dauletbek¹,

Li²,

Lorenzo³

et al. 2022

Journal of Renewable Materials

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“…Finite time thermodynamics (FTT) has been used to analyze various thermodynamic processes and cycles [11][12][13][14][15][16][17][18][19][20][21] for several decades. The electrochemical model of PEMFC can also be embodied into corresponding FTT model for thermodynamic performance analysis and optimization to pursue maximum performances under operation conditions.…”

Section: Introductionmentioning

confidence: 99%

Exergetic Performance Coefficient Analysis and Optimization of a High-Temperature Proton Exchange Membrane Fuel Cell

et al. 2022

Membranes

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Performance of a high-temperature proton exchange membrane fuel cell (HT-PEMFC) and the influence of different parameters on HT-PEMFC is analyzed in this study. Firstly, mathematical expression for energy efficiency, power density, exergy destruction and exergetic performance coefficient (EPC) are derived. Then, the relationship between the dimensionless power density, exergy destruction rate, exergetic performance coefficient (EPC) and energy efficiency is compared. Furthermore, the effect of flow rate, doping level, inlet pressure and film thickness are considered to evaluate the performance of HT-PEMFC. Results show that EPC not only considers exergetic loss rate to minimize exergetic loss, but also considers the power density of HT-PEMFC to maximize its power density and improve its efficiency, so EPC represents a better performance criterion. In addition, increasing inlet pressure and doping level can improve EPC and energy efficiency, respectively.

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“…Wood is a renewable and biological material, which is widely used in various fields [1][2][3][4], ranging from industry, energy, and aerospace to products of furniture, tableware, and daily necessities. As a biological material, wood is widely used in many fields but also has certain limitations in nature, such as poor dimensional stability, biological durability, and vulnerability to microorganisms and pests, therefore innovative wood drying [5] and modification [6] technologies have emerged to improve the properties to satisfy various utilizations demand.…”

Section: Introductionmentioning

confidence: 99%

Research Progress of Wood Cell Wall Modification and Functional Improvement: A Review

Zhou

Liu

2022

Materials

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The modification of wood cell walls is based on the characteristics of the chemical composition and structure of the cell wall. Various physical and chemical modifications to these characteristics enhance the original properties of the cell wall and give additional functionality. Through complex modification, wood has also obtained the opportunity to become a multifunctional material. Scholars have paid more attention to the microscopic properties of the cell wall with continuous enrichment of modification methods and improvement of modification mechanisms. This article summarizes the methods of cell wall modification in recent years and proposes prospects for future development: (1) innovation of modifiers and combination with modification mechanism, as well as improvement of cell wall permeability; (2) the application directions of cell wall structures; and (3) the application of nano-technologies in cell wall modification. This review provides further ideas and technologies for wood modifications.

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Deflection test and modal analysis of lightweight timber floors

Cited by 15 publications

References 12 publications

A Review of Basic Mechanical Behavior of Laminated Bamboo Lumber

A Review of Basic Mechanical Behavior of Laminated Bamboo Lumber

Exergetic Performance Coefficient Analysis and Optimization of a High-Temperature Proton Exchange Membrane Fuel Cell

Research Progress of Wood Cell Wall Modification and Functional Improvement: A Review

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