Size effect mechanism of cross-section deformation and section hollow coefficient-bending degree of the thin-walled composite bending tube

The composite tube has been widely used in various fields of piping systems, because of saving precious metals and combining physical and chemical properties of bi-material. There are important correlations between the bending forming accuracy and cross-section deformation mechanism of the composite...

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Autores principales:	Y.X. Zhu, M.M. Wan, Y. Wang, W.B. Tu, Y.F. Cheng
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Thin-walled bimetallic composite tube Size effect Deformation mechanism Defect limit Rotary-draw bending Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/382fb53ca0114984a44b4fbea5e516b6
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id	oai:doaj.org-article:382fb53ca0114984a44b4fbea5e516b6
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spelling	oai:doaj.org-article:382fb53ca0114984a44b4fbea5e516b62021-11-26T04:24:04ZSize effect mechanism of cross-section deformation and section hollow coefficient-bending degree of the thin-walled composite bending tube0264-127510.1016/j.matdes.2021.110274https://doaj.org/article/382fb53ca0114984a44b4fbea5e516b62021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0264127521008297https://doaj.org/toc/0264-1275The composite tube has been widely used in various fields of piping systems, because of saving precious metals and combining physical and chemical properties of bi-material. There are important correlations between the bending forming accuracy and cross-section deformation mechanism of the composite tube, and its own size factors, that is the size effect. However, the correlations are not clear, and the effects of size factors are coupled or superimposed. Therefore, a brand-new research method of size effect is established. Two dimensionless variables of section hollow coefficient λ and bending degree w are introduced to describe the sectional dimensional characteristics. The mathematical model of size effect is established as well as the relationships between cross-section deformation Δδ and λ, w and λ-w. Finally, the distribution of Δδ in λ-w space has been developed based on the above research. The results are shown as follows. (1) All the relationships of Δδ and λ-w can be described by the product of the double Boltzmann function, which is also the mathematical model of the size effect. (2) There are “un-formable zone”, “bendable forming zone” and “best forming zone” of the composite tube in λ-w space. The “best forming zone” is Zb = {λ, w\|0.2 ≤ λ ≤ 0.58, 0.23 ≤ w ≤ 0.90}.Y.X. ZhuM.M. WanY. WangW.B. TuY.F. ChengElsevierarticleThin-walled bimetallic composite tubeSize effectDeformation mechanismDefect limitRotary-draw bendingMaterials of engineering and construction. Mechanics of materialsTA401-492ENMaterials & Design, Vol 212, Iss , Pp 110274- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Thin-walled bimetallic composite tube Size effect Deformation mechanism Defect limit Rotary-draw bending Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Thin-walled bimetallic composite tube Size effect Deformation mechanism Defect limit Rotary-draw bending Materials of engineering and construction. Mechanics of materials TA401-492 Y.X. Zhu M.M. Wan Y. Wang W.B. Tu Y.F. Cheng Size effect mechanism of cross-section deformation and section hollow coefficient-bending degree of the thin-walled composite bending tube
description	The composite tube has been widely used in various fields of piping systems, because of saving precious metals and combining physical and chemical properties of bi-material. There are important correlations between the bending forming accuracy and cross-section deformation mechanism of the composite tube, and its own size factors, that is the size effect. However, the correlations are not clear, and the effects of size factors are coupled or superimposed. Therefore, a brand-new research method of size effect is established. Two dimensionless variables of section hollow coefficient λ and bending degree w are introduced to describe the sectional dimensional characteristics. The mathematical model of size effect is established as well as the relationships between cross-section deformation Δδ and λ, w and λ-w. Finally, the distribution of Δδ in λ-w space has been developed based on the above research. The results are shown as follows. (1) All the relationships of Δδ and λ-w can be described by the product of the double Boltzmann function, which is also the mathematical model of the size effect. (2) There are “un-formable zone”, “bendable forming zone” and “best forming zone” of the composite tube in λ-w space. The “best forming zone” is Zb = {λ, w\|0.2 ≤ λ ≤ 0.58, 0.23 ≤ w ≤ 0.90}.
format	article
author	Y.X. Zhu M.M. Wan Y. Wang W.B. Tu Y.F. Cheng
author_facet	Y.X. Zhu M.M. Wan Y. Wang W.B. Tu Y.F. Cheng
author_sort	Y.X. Zhu
title	Size effect mechanism of cross-section deformation and section hollow coefficient-bending degree of the thin-walled composite bending tube
title_short	Size effect mechanism of cross-section deformation and section hollow coefficient-bending degree of the thin-walled composite bending tube
title_full	Size effect mechanism of cross-section deformation and section hollow coefficient-bending degree of the thin-walled composite bending tube
title_fullStr	Size effect mechanism of cross-section deformation and section hollow coefficient-bending degree of the thin-walled composite bending tube
title_full_unstemmed	Size effect mechanism of cross-section deformation and section hollow coefficient-bending degree of the thin-walled composite bending tube
title_sort	size effect mechanism of cross-section deformation and section hollow coefficient-bending degree of the thin-walled composite bending tube
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/382fb53ca0114984a44b4fbea5e516b6
work_keys_str_mv	AT yxzhu sizeeffectmechanismofcrosssectiondeformationandsectionhollowcoefficientbendingdegreeofthethinwalledcompositebendingtube AT mmwan sizeeffectmechanismofcrosssectiondeformationandsectionhollowcoefficientbendingdegreeofthethinwalledcompositebendingtube AT ywang sizeeffectmechanismofcrosssectiondeformationandsectionhollowcoefficientbendingdegreeofthethinwalledcompositebendingtube AT wbtu sizeeffectmechanismofcrosssectiondeformationandsectionhollowcoefficientbendingdegreeofthethinwalledcompositebendingtube AT yfcheng sizeeffectmechanismofcrosssectiondeformationandsectionhollowcoefficientbendingdegreeofthethinwalledcompositebendingtube
_version_	1718409893558353920

Size effect mechanism of cross-section deformation and section hollow coefficient-bending degree of the thin-walled composite bending tube

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