کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
784075 1465409 2006 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dynamic buckling of a shallow arch under shock loading considering the effects of the arch shape
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Dynamic buckling of a shallow arch under shock loading considering the effects of the arch shape
چکیده انگلیسی

In this paper, the influence of the initial curvature of thin shallow arches on the dynamic pulse buckling load is examined. Using numerical means and a multi-dof semi-analytical model, both quasi-static and non-linear transient dynamical analyzes are performed. The influence of various parameters, such as pulse duration, damping and, especially, the arch shape is illustrated. Moreover, the results are numerically validated through a comparison with results obtained using finite element modeling. The main results are firstly that the critical shock level can be significantly increased by optimizing the arch shape and secondly, that geometric imperfections have only a mild influence on these results. Furthermore, by comparing the sensitivities of the static and dynamic buckling loads with respect to the arch shape, non-trivial quantitative correspondences are found.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Non-Linear Mechanics - Volume 41, Issue 9, November 2006, Pages 1057–1067
نویسندگان
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