Vietnam Academy of Science and Technology

Project's title	On stability of elastic rings
Project’s code	GUST.STS.ĐT2019/CH01
Research hosting institution	Graduate University of Science and Technology
Project leader’s name	PhD. Hoang Minh Tuan
Project duration	01/06/2019 - 30/06/2022
Project’s budget	462 million VND
Classify	Excellent
Goal and objectives of the project	Study stability of elastic rings subject to bending and twisting.
Main results	- Theoretical results: Analyze stability of elastic rings made from chiral filaments subject to twisting and bending due to fluild films; Determine critical twisting moment and surface tension of fluid film at which the flat circular configuration of elastic rings loses stability; Determine buckled shapes of elastic rings after instability occurs. - Applied results: The project results could be used to understand kink instability of DNA rings.
Novelty and actuality and scientific meaningfulness of the results	Analyze influence of twist-bend coupling on stability of elastic rings subject to bending and twisting.
Products of the project	Tuan M. Hoang, Postbuckling of chiral elastic rings with intrinsic twist, International Journal of Solids and Structures, 225 (2021) 111033. Hoang Minh Tuan, Nguyen Thi Lan, Tran Minh Tuyen, Buckling of chiral elastic rings spanned by fluid film, Vietnam Journal of Mechanics, VAST, 44 (2022), 59 – 68.
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