Physical and mechanical properties of two tropical wood (Detarium macrocarpum and Piptadeniastrum africanum) and their potential as substitutes to traditionally used wood in Cameroon

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-02-26 DOI:10.1177/20426445241233343

Stéphane Kenfack Kana, A. Biwôlé, Paul William Mejouyo Huisken, B. M. Ganou Koungang, Rachel Raïssa Ngono Mvondo, Marlène Ngansop Tounkam, E. Njeugna

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Abstract

This study aimed to characterise two little-known woods and discuss their potential to replace those heavily exploited in Cameroon's forests. Amouk (Detarium macrocarpum) and Dabema (Piptadeniastrum africanum) were characterised for their physical and mechanical properties. Density, shrinkage, desorption kinetics, shear strength, tensile strength and modulus of elasticity (MOE) in compression and flexion were determined. A Weibull analysis was performed to predict their failure. It was found that Amouk and Dabéma can be classified as medium-heavy wood with low shrinkage and desorption, following Midilli's empirical model. The physical and mechanical characterisations show that the density, strength and MOE parameters of the woods are close to each other and enable them to be classified as medium-strength woods. The probability of failure in compression follows Weibull's law. These woods can, therefore, be used in structural applications such as construction, replacing common woods.

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两种热带木材（Detarium macrocarpum 和 Piptadeniastrum africanum）的物理和机械特性及其作为喀麦隆传统木材替代品的潜力

本研究旨在描述两种鲜为人知的木材的特性，并讨论它们替代喀麦隆森林中被大量开采的木材的潜力。研究人员对 Amouk（Detarium macrocarpum）和 Dabema（Piptadeniastrum africanum）的物理和机械特性进行了鉴定。测定了密度、收缩率、解吸动力学、剪切强度、拉伸强度以及压缩和弯曲弹性模量（MOE）。通过 Weibull 分析预测了它们的破坏情况。研究发现，根据 Midilli 的经验模型，Amouk 和 Dabéma 可归类为低收缩和低解吸的中重型木材。物理和机械特性表明，这两种木材的密度、强度和 MOE 参数相互接近，因此可将它们归类为中等强度木材。压缩失效概率遵循威布尔定律。因此，这些木材可用于建筑等结构应用领域，取代普通木材。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.