کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
825645 1470059 2008 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of residual surface tension on the stress concentration around a nanosized spheroidal cavity
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Effect of residual surface tension on the stress concentration around a nanosized spheroidal cavity
چکیده انگلیسی

The effect of residual surface tension on the stress concentration around a nanosized spheroidal cavity in an isotropic elastic medium is analyzed based on the surface elasticity. Using the method of Boussinesq–Sadowsky’s potential functions, we obtained the solutions for the elastic field around the nanosized spheroidal cavity subjected to a uniformly uniaxial tension. It is shown that when the size of the cavity reduces to the same order of the ratio of residual surface tension to applied stress, the contribution from residual surface tension becomes important. Both the shape and the size of the cavity significantly affect the stress field and stress concentration around a nanosized cavity. The results are evidently different from the classical results, and are useful to the damage analysis and prediction of the effective moduli of heterogeneous materials containing nanosized cavities.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Engineering Science - Volume 46, Issue 5, May 2008, Pages 475–485
نویسندگان
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