教師資料查詢 | 類別: 期刊論文 | 教師: 周子聰 Zicong Zhou (瀏覽個人網頁)

標題:Elasticity and stability of a helical filament
學年93
學期2
出版(發表)日期2005/05/01
作品名稱Elasticity and stability of a helical filament
作品名稱(其他語言)
著者Zhou, Zicong; Lai, Pik-Yin; Joós, Béla
單位淡江大學物理學系
出版者College Park: American Physical Society
著錄名稱、卷期、頁數Physical Review E (Statistical, Nonlinear, and Soft Matter Physics) 71(5), 052801(4pages)
摘要We derive the general shape equations in terms of Euler angles for a uniform elastic rod with spontaneous torsion and curvatures and subjected to external force and torque. Our results based on an analytic formalism show that the extension of a helical rod may undergo a one-step discontinuous transition with increasing stretching force. This agrees quantitatively with experimental observations for a helix in a chemically defined lipid concentrate. The larger the twisting rigidity, the larger the jump in the extension. The effect of torque on the jump is, however, dependent on the value of the spontaneous torsion. In contrast, increasing the spontaneous torsion encourages the continuous variation of the extension. An “over-collapse” behavior is observed for the rod with asymmetric bending rigidity, and an intrinsic asymmetric elasticity under twisting force is found.
關鍵字Euler angles; Helical filament; Helical rod; Bending (deformation); Lipids; Phase transitions; Torque; Torsional stress; Elasticity
語言英文
ISSN1539-3755
期刊性質國外
收錄於SCI
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式紙本
相關連結
Google+ 推薦功能,讓全世界都能看到您的推薦!