MEHMET FATİH ALTAN, MURAT EMRE KARTAL, SENAYİ DÖNMEZ

Dairesel delikli ortotropik plakalarda burkulma yükünün incelenmesi

Bu çalışmada, bir doğrultulu statik düzlemsel yükler etkisindeki, basit mesnetli, tabakalı, dairesel delikli, ortotropik dikdörtgen plakların burkulma analizi sonlu elemanlar yöntemi kullanılarak yapılmıştır. Ortotropik plaklarda çeşitli geometrik deliklerin bulunması halinde elemanın taşıyabileceği burkulma yükünün incelenmesi oldukça önemlidir. Bu nedenle, bu çalışmada altı tabakalı, merkezi dairesel delikli ve tabakaları uygulanan yüke 0° ve 90°’lik açılarla yerleştirilmiş plaklar dikkate alınmıştır. Plak merkezine yerleştirilmiş daire şeklindeki deliğin yarıçapının değişmesi durumunda kritik burkulma yüklerinin değişimi araştırılmıştır. Ayrıca kritik burkulma yükü değişimleri için regresyon analizi yapılmıştır.

Investigating buckling load of orthotropic plates with a circular cut-out

In this study, buckling analysis of simply supported, laminated and orthotropic rectangular plates with circular cut-out subjected to uniaxial static in-plane loads are performed by using finite element method. It is important to investigate buckling load, which plate will bear, on orthotropic plates while those have various geometrically cut-outs. So, six laminates, central circular cut-out and cross-ply plates are taken into consideration. It is studied that when radius of central circular cut-out of plate increases, how the critical buckling load changes. Besides, a regression analysis is performed for the buckling loads.

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