کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
757409 1462514 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of crack opening stresses for center- and edge-crack tension specimens
ترجمه فارسی عنوان
تجزیه و تحلیل تنش باز شدن ترک برای نمونه های کشش مرکزی و لبه
کلمات کلیدی
مرکز و لبه ترک، بستن ترک ترک کشیدن تنش جابجایی سطحی کرک، روش تابع وزن
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
چکیده انگلیسی

Accurate determination of crack opening stress is of central importance to fatigue crack growth analysis and life prediction based on the crack-closure model. This paper studies the crack opening behavior for center- and edge-crack tension specimens. It is found that the crack opening stress is affected by the crack tip element. By taking the crack tip element into account, a modified crack opening stress equation is given for the center-crack tension specimen. Crack surface displacement equations for an edge crack in a semi-infinite plate under remote uniform tension and partially distributed pressure are derived by using the weight function method. Based on these displacements, a crack opening stress equation for an edge crack in a semi-infinite plate under uniform tension has been developed. The study shows that the crack opening stress is geometry-dependent, and the weight function method provides an effective and reliable tool to deal with such geometry dependence.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Journal of Aeronautics - Volume 27, Issue 2, April 2014, Pages 291–298
نویسندگان
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