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 of randomly diluted central force networks under tension
學年92
學期1
出版(發表)日期2003/11/01
作品名稱Elasticity of randomly diluted central force networks under tension
作品名稱(其他語言)
著者Zhou, Zicong; Joós, Béla; Lai, Pik-Yin
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) 68(5), 055101(R)(4pages)
摘要We study the rigidity of two-dimensional site-diluted central force triangular networks under tension. We calculate the shear modulus μ directly and fit it with a power law of the form μ∼(p-p*)f, where p is the concentration of sites, p* its critical value, and f the critical exponent. We find that the critical behavior of μ is quite sensitive to tension. As the tension is increased there is at first a sharp drop in the values of both p* and f, followed by a slower decrease towards the values of the diluted Gaussian spring network (or random resistor network). We find that the size of the critical region is also sensitive to tension. The tension-free system has a narrower critical regime with the power law failing for p>0.8. In contrast, a small tension is sufficient to extend the power law to near p=1. The physical basis for these behaviors is discussed.
關鍵字Computer simulation; Elastic moduli; Entropy; Extrapolation; Least squares approximations; Particle size analysis; Percolation (solid state); Random processes; Rigidity;Stress concentration; Stress relaxation; Surface tension; Isotropic lattices; Normalization methods; Random networks; Shear relaxation; 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!