基于Burgers模型的玉米秸秆颗粒蠕变特性模拟

IF 1.3 4区农林科学 Q2 MATERIALS SCIENCE, PAPER & WOOD

Bioresources Pub Date : 2023-11-03 DOI:10.15376/biores.19.1.53-65

Zhe Ma, Hongbo Wang, Chunguang Wang, Zhihong Yu

{"title":"基于Burgers模型的玉米秸秆颗粒蠕变特性模拟","authors":"Zhe Ma, Hongbo Wang, Chunguang Wang, Zhihong Yu","doi":"10.15376/biores.19.1.53-65","DOIUrl":null,"url":null,"abstract":"To simulate the creep characteristics of corn straw particles under uniaxial compression, a 6-level 2D model was created using PFC 2D software according to the actual uniaxial creep test, the grain size, and shape of corn straw particles. Five groups of controlled tests were designed by the control variable method to study the influence of Maxwell body parameters Em, ηm; Kelvin body parameters Ek, ηk; and friction coefficient f on the creep curve of Burgers model. Results revealed that the creep characteristics of corn straw are affected by these 5 parameters. After multiple debugging by trial-and-error method, simulation parameters suitable for describing the creep characteristics of corn straw particles were obtained. The creep curves obtained by simulation under these parameters are consistent with those obtained by physical tests. It was shown that PFC software can not only study the creep characteristics of geotechnical materials, but also study the creep characteristics of agricultural fiber materials, which provides a reference for the subsequent rheological characteristics of biomass materials.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"25 5","pages":"0"},"PeriodicalIF":1.3000,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Creep characteristics of corn straw particles simulated based on Burgers model\",\"authors\":\"Zhe Ma, Hongbo Wang, Chunguang Wang, Zhihong Yu\",\"doi\":\"10.15376/biores.19.1.53-65\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"To simulate the creep characteristics of corn straw particles under uniaxial compression, a 6-level 2D model was created using PFC 2D software according to the actual uniaxial creep test, the grain size, and shape of corn straw particles. Five groups of controlled tests were designed by the control variable method to study the influence of Maxwell body parameters Em, ηm; Kelvin body parameters Ek, ηk; and friction coefficient f on the creep curve of Burgers model. Results revealed that the creep characteristics of corn straw are affected by these 5 parameters. After multiple debugging by trial-and-error method, simulation parameters suitable for describing the creep characteristics of corn straw particles were obtained. The creep curves obtained by simulation under these parameters are consistent with those obtained by physical tests. It was shown that PFC software can not only study the creep characteristics of geotechnical materials, but also study the creep characteristics of agricultural fiber materials, which provides a reference for the subsequent rheological characteristics of biomass materials.\",\"PeriodicalId\":9172,\"journal\":{\"name\":\"Bioresources\",\"volume\":\"25 5\",\"pages\":\"0\"},\"PeriodicalIF\":1.3000,\"publicationDate\":\"2023-11-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bioresources\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.15376/biores.19.1.53-65\",\"RegionNum\":4,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, PAPER & WOOD\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bioresources","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.15376/biores.19.1.53-65","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, PAPER & WOOD","Score":null,"Total":0}

引用次数: 0

摘要

为了模拟玉米秸秆颗粒在单轴压缩下的蠕变特性，根据实际的单轴蠕变试验，结合玉米秸秆颗粒的粒度和形状，利用PFC 2D软件建立了6级二维模型。采用控制变量法设计了5组对照试验，研究麦克斯韦体参数Em、η、m的影响;开尔文体参数Ek， ηk;和Burgers模型蠕变曲线上的摩擦系数f。结果表明，玉米秸秆的蠕变特性受这5个参数的影响。通过多次试错法调试，得到了适合描述玉米秸秆颗粒蠕变特性的仿真参数。在这些参数下，模拟得到的蠕变曲线与物理试验结果一致。结果表明，PFC软件不仅可以研究土工材料的蠕变特性，还可以研究农业纤维材料的蠕变特性，为后续生物质材料的流变特性研究提供参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Creep characteristics of corn straw particles simulated based on Burgers model

To simulate the creep characteristics of corn straw particles under uniaxial compression, a 6-level 2D model was created using PFC 2D software according to the actual uniaxial creep test, the grain size, and shape of corn straw particles. Five groups of controlled tests were designed by the control variable method to study the influence of Maxwell body parameters Em, ηm; Kelvin body parameters Ek, ηk; and friction coefficient f on the creep curve of Burgers model. Results revealed that the creep characteristics of corn straw are affected by these 5 parameters. After multiple debugging by trial-and-error method, simulation parameters suitable for describing the creep characteristics of corn straw particles were obtained. The creep curves obtained by simulation under these parameters are consistent with those obtained by physical tests. It was shown that PFC software can not only study the creep characteristics of geotechnical materials, but also study the creep characteristics of agricultural fiber materials, which provides a reference for the subsequent rheological characteristics of biomass materials.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Bioresources 工程技术-材料科学：纸与木材

CiteScore

2.90

自引率

13.30%

发文量

397

审稿时长

2.3 months

期刊介绍： The purpose of BioResources is to promote scientific discourse and to foster scientific developments related to sustainable manufacture involving lignocellulosic or woody biomass resources, including wood and agricultural residues. BioResources will focus on advances in science and technology. Emphasis will be placed on bioproducts, bioenergy, papermaking technology, wood products, new manufacturing materials, composite structures, and chemicals derived from lignocellulosic biomass.