Experimental Study and Simulation of the Stress Relaxation Characteristics of Machine-Harvested Seed Cotton

Seed cotton compression molding solves the inconvenience of seed cotton transportation and storage after mechanical harvesting. Stress relaxation is closely related to the performance of the compressed seed cotton. In this study, an electronic universal testing machine with a homemade compression de...

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Autores principales:	Jun Wang, Hongwen Zhang, Lei Wang, Ximei Wei, Meng Wang, Yanqing Gu, Yunxiao Cai
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	stress relaxation machine-harvested seed cotton rheological properties experiment mathematical models simulation of virtual prototype Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/ac37283777f84c1ca4df31f286f6456d
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spelling	oai:doaj.org-article:ac37283777f84c1ca4df31f286f6456d2021-11-11T15:03:58ZExperimental Study and Simulation of the Stress Relaxation Characteristics of Machine-Harvested Seed Cotton10.3390/app112199592076-3417https://doaj.org/article/ac37283777f84c1ca4df31f286f6456d2021-10-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/9959https://doaj.org/toc/2076-3417Seed cotton compression molding solves the inconvenience of seed cotton transportation and storage after mechanical harvesting. Stress relaxation is closely related to the performance of the compressed seed cotton. In this study, an electronic universal testing machine with a homemade compression device was used to study the stress relaxation characteristics of machine-harvested seed cotton. The stress relaxation model of machine-harvested seed cotton was established, the influence of test factors on the response indexes was analyzed and, finally, stress relaxation characteristics of machine-harvested seed cotton were simulated. Results show that machine-harvested seed cotton stress relaxation characteristics can be described by the five-element Maxwell model. The equilibrium elastic modulus is negatively correlated with moisture content and cross-section dimensions, and the equilibrium elastic modulus is positively correlated with trash content and compression density. The rapid decay time and the residual stress ratio are negatively correlated with moisture content and compression density, but the influence of trash content and cross-section dimensions are limited. The stress relaxation process of machine-harvested seed cotton was simulated using virtual prototype technology, and the maximum error between the experimental and simulated values was obtained as 4.96%. The feasibility of the virtual prototype technique for the viscoelastic simulation of biomaterials was demonstrated.Jun WangHongwen ZhangLei WangXimei WeiMeng WangYanqing GuYunxiao CaiMDPI AGarticlestress relaxationmachine-harvested seed cottonrheological propertiesexperimentmathematical modelssimulation of virtual prototypeTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 9959, p 9959 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	stress relaxation machine-harvested seed cotton rheological properties experiment mathematical models simulation of virtual prototype Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	stress relaxation machine-harvested seed cotton rheological properties experiment mathematical models simulation of virtual prototype Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Jun Wang Hongwen Zhang Lei Wang Ximei Wei Meng Wang Yanqing Gu Yunxiao Cai Experimental Study and Simulation of the Stress Relaxation Characteristics of Machine-Harvested Seed Cotton
description	Seed cotton compression molding solves the inconvenience of seed cotton transportation and storage after mechanical harvesting. Stress relaxation is closely related to the performance of the compressed seed cotton. In this study, an electronic universal testing machine with a homemade compression device was used to study the stress relaxation characteristics of machine-harvested seed cotton. The stress relaxation model of machine-harvested seed cotton was established, the influence of test factors on the response indexes was analyzed and, finally, stress relaxation characteristics of machine-harvested seed cotton were simulated. Results show that machine-harvested seed cotton stress relaxation characteristics can be described by the five-element Maxwell model. The equilibrium elastic modulus is negatively correlated with moisture content and cross-section dimensions, and the equilibrium elastic modulus is positively correlated with trash content and compression density. The rapid decay time and the residual stress ratio are negatively correlated with moisture content and compression density, but the influence of trash content and cross-section dimensions are limited. The stress relaxation process of machine-harvested seed cotton was simulated using virtual prototype technology, and the maximum error between the experimental and simulated values was obtained as 4.96%. The feasibility of the virtual prototype technique for the viscoelastic simulation of biomaterials was demonstrated.
format	article
author	Jun Wang Hongwen Zhang Lei Wang Ximei Wei Meng Wang Yanqing Gu Yunxiao Cai
author_facet	Jun Wang Hongwen Zhang Lei Wang Ximei Wei Meng Wang Yanqing Gu Yunxiao Cai
author_sort	Jun Wang
title	Experimental Study and Simulation of the Stress Relaxation Characteristics of Machine-Harvested Seed Cotton
title_short	Experimental Study and Simulation of the Stress Relaxation Characteristics of Machine-Harvested Seed Cotton
title_full	Experimental Study and Simulation of the Stress Relaxation Characteristics of Machine-Harvested Seed Cotton
title_fullStr	Experimental Study and Simulation of the Stress Relaxation Characteristics of Machine-Harvested Seed Cotton
title_full_unstemmed	Experimental Study and Simulation of the Stress Relaxation Characteristics of Machine-Harvested Seed Cotton
title_sort	experimental study and simulation of the stress relaxation characteristics of machine-harvested seed cotton
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ac37283777f84c1ca4df31f286f6456d
work_keys_str_mv	AT junwang experimentalstudyandsimulationofthestressrelaxationcharacteristicsofmachineharvestedseedcotton AT hongwenzhang experimentalstudyandsimulationofthestressrelaxationcharacteristicsofmachineharvestedseedcotton AT leiwang experimentalstudyandsimulationofthestressrelaxationcharacteristicsofmachineharvestedseedcotton AT ximeiwei experimentalstudyandsimulationofthestressrelaxationcharacteristicsofmachineharvestedseedcotton AT mengwang experimentalstudyandsimulationofthestressrelaxationcharacteristicsofmachineharvestedseedcotton AT yanqinggu experimentalstudyandsimulationofthestressrelaxationcharacteristicsofmachineharvestedseedcotton AT yunxiaocai experimentalstudyandsimulationofthestressrelaxationcharacteristicsofmachineharvestedseedcotton
_version_	1718437164084101120

Experimental Study and Simulation of the Stress Relaxation Characteristics of Machine-Harvested Seed Cotton

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