Statistical methods in the analysis of strength parameters of epoxy-glass composites modified with rubber recyclate

Q3 Engineering

Journal of Achievements in Materials and Manufacturing Engineering Pub Date : 2023-04-01 DOI:10.5604/01.3001.0053.6702

S. Drewing, N. Abramczyk, D. Żuk, T. Dyl

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引用次数: 1

Abstract

The article presents a statistical analysis of strength parameters of newly developed epoxy-glass composite materials modified with the addition of rubber recyclate.Three variants of materials with a percentage of recyclate content in the composite matrix of 3%, 5%, 7% and a reference variant without the addition of recyclate were used for the study. The samples were subjected to an impact test on a ZWICK RKP 450IR-GE impact hammer. Resilience measurement values were subjected to statistical analyses at the significance level = 95%, such as: testing the normality of distributions with the Shapiro-Wilk test, testing differences between pairs with the Student's t-test for dependent groups, and testing ANOVA differences for independent groups.The Shapiro-Wilk test confirmed that the resilience variables for all tested samples were in normal distributions; therefore the highest power parametric tests were used to test the differences. Using the Student's t-test, it was confirmed that between pairs of variables in configurations: standard sample with the modified sample, there were significant statistical differences in the distribution of resilience values for all samples. ANOVA confirmed significant changes in impact strength in 10 comparison variants.The obtained test results showed that in 9 compared cases, there were significant statistical differences, and in one case, there were no significant differences.The performed statistical analyses confirmed their significant usefulness in the process of qualification of strength parameters for materials with high anisotropy, such as composites.The manufactured products are innovative in terms of the method of using the addition of rubber recyclate as a filler for epoxy-glass composites. The use of static methods for their study also has practical value. It optimizes the analysis methods of the results of measurements of strength parameters of new composite materials.

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再生橡胶改性环氧玻璃复合材料强度参数分析的统计方法

本文对新研制的添加再生橡胶改性的环氧玻璃复合材料的强度参数进行了统计分析。研究中使用了复合基质中再生物含量百分比分别为3%、5%、7%的三种材料变体和不添加再生物的参考变体。样品在ZWICK RKP 450IR-GE冲击锤上进行了冲击试验。弹性测量值在显著性水平= 95%下进行统计学分析，如:使用Shapiro-Wilk检验检验分布的正态性，使用Student's t检验检验成对之间的差异，使用独立组的方差分析检验差异。夏皮罗-威尔克检验证实，所有被测样本的弹性变量均服从正态分布;因此，采用最高功率参数检验来检验差异。通过学生t检验证实，在标准样本和修正样本配置的变量对之间，所有样本的弹性值分布都有显著的统计学差异。方差分析证实了10个比较变量中冲击强度的显著变化。得到的检测结果显示，9例比较病例有显著的统计学差异，1例比较病例无显著差异。统计分析证实了这些方法在高各向异性材料(如复合材料)强度参数确定过程中的重要作用。制造的产品在使用添加橡胶回收物作为环氧玻璃复合材料填料的方法方面具有创新性。采用静态方法对其进行研究也具有实用价值。对新型复合材料强度参数测量结果的分析方法进行了优化。

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

Journal of Achievements in Materials and Manufacturing Engineering Engineering-Industrial and Manufacturing Engineering

CiteScore

2.10

自引率

0.00%

发文量

期刊介绍： The Journal of Achievements in Materials and Manufacturing Engineering has been published by the Association for Computational Materials Science and Surface Engineering in collaboration with the World Academy of Materials and Manufacturing Engineering WAMME and the Section Metallic Materials of the Committee of Materials Science of the Polish Academy of Sciences as a monthly. It has 12 points which was received during the evaluation by the Ministry of Science and Higher Education journals and ICV 2017:100 on the ICI Journals Master list announced by the Index Copernicus. It is a continuation of "Proceedings on Achievements in Mechanical and Materials Engineering" published in 1992-2005. Scope: Materials[...] Properties[...] Methodology of Research[...] Analysis and Modelling[...] Manufacturing and Processingv Biomedical and Dental Engineering and Materials[...] Cleaner Production[...] Industrial Mangement and Organisation [...] Education and Research Trends[...]