کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11032131 | 1645679 | 2019 | 46 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cylindrical indentation of an elastic bonded layer with surface tension
ترجمه فارسی عنوان
استحکام استوانه ای یک لایه باند الاستیک با کشش سطحی
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کلمات کلیدی
لایه الاستیک، کشش سطحی، مکانیک تماس انداختن،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مکانیک محاسباتی
چکیده انگلیسی
Surface tension is a prominent factor for the deformation of solids at micro-/nano-scale. This paper investigates the effects of surface tension on the two-dimensional contact problems of an elastic layer bonded to the rigid substrate. Under the plane strain assumption, the elastic field induced by a uniformly distributed pressure is formulated by applying the Fourier integral transform, and the limiting process leading to the solutions for a line force brings the requisite surface Green's function. For the indentation of an elastic layer by a rigid cylinder, the corresponding singular integral equation is derived, and subsequently solved by using an effective numerical method based on Gauss-Chebyshev quadrature formula. It is found that the existence of surface tension strongly enhances the stiffness of the elastic layer and significantly affects the distribution of contact pressure, when the size of contact region is comparable to the elastocapillary length. In addition, an approximate relationship between external load and half-width of contact is generalized in an explicit form, which is useful and convenient for practical applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematical Modelling - Volume 65, January 2019, Pages 597-613
Journal: Applied Mathematical Modelling - Volume 65, January 2019, Pages 597-613
نویسندگان
Yuan Weike, Wang Gangfeng,