کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
277686 1430239 2014 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Size-dependent effective elastic moduli of particulate composites with interfacial displacement and traction discontinuities
ترجمه فارسی عنوان
ماژول کششی وابسته به اندازه کامپوزیت های ذرات با جابجایی بین فضایی و اختلالات کشش
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی


• Simple and compact expressions for a general elastic imperfect interface model.
• Elastic fields for an imperfectly bonded spherical particle in an infinite body.
• Estimates for the effective moduli of composites with imperfect interfaces.

This work aims at estimating the size-dependent effective elastic moduli of particulate composites in which both the interfacial displacement and traction discontinuities occur. To this end, the interfacial discontinuity relations derived from the replacement of a thin uniform interphase layer between two dissimilar materials by an imperfect interface are reformulated so as to considerably simplify the characteristic expressions of a general elastic imperfect model which is adopted in the present work and include the widely used Gurtin–Murdoch and spring-layer interface models as particular cases. The elastic fields in an infinite body made of a matrix containing an imperfectly bonded spherical particle and subjected to arbitrary remote uniform strain boundary conditions are then provided in an exact, coordinate-free and compact way. With the aid of these results, the elastic properties of a perfectly bonded spherical particle energetically equivalent to an imperfectly bonded one in an infinite matrix are determined. The estimates for the effective bulk and shear moduli of isotropic particulate composites are finally obtained by using the generalized self-consistent scheme and discussed through numerical examples.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Solids and Structures - Volume 51, Issue 13, 15 June 2014, Pages 2283–2296
نویسندگان
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