Parametric Analysis of Stress Concentration Factor in Rectangular Holed Isotropic Plates and Artificial Neural Network Approach

Öz

In this study, the behavior of a thin plate with rectangular holes under shear stress was investigated parametrically using the Finite Element Analysis (FEA) method and modeled using Artificial Neural Networks (ANN). The stress intensity caused by the rectangular hole on the examined plate was analyzed in detail. In the parametric model, different stress distributions were obtained by changing the geometric parameters on the plate. The accuracy of the experimental results was tested using the Finite Element Analysis and a new model was created using the experimental study data using the ANN method. With the new model created, reliable estimates were made for parameters such as stress, deformation, and stress intensity. This study offers a method that will enable engineers and designers to perform stress analyses on plates with rectangular holes quickly and efficiently.

Anahtar Kelimeler

• Rectangular perforated plate
• shear stress
• stress concentration factor (SCF)
• finite element analysis (FEA)
• artificial neural networks (ANN).

Dikdörtgen Delikli İzotropik Levhalarda Gerilme Yığılması Faktörünün (GYF) Parametrik Analizi ve Yapay Sinir Ağı Yaklaşımı

Öz

Bu çalışmada, dikdörtgen delikli ince bir plağın kayma gerilmesi altındaki davranışları parametrik olarak Sonlu Elemanlar Analizi (SEA) yöntemi ile incelenmiş ve Yapay Sinir Ağları (YSA) ile modellenmiştir. İncelenen plaka üzerindeki dikdörtgen delik nedeniyle oluşan gerilme yoğunluğu detaylı olarak analiz edilmiştir. Parametrik modelde, plakadaki geometrik parametreler değiştirilerek farklı stres dağılımları elde edilmiştir. Deneysel sonuçların doğruluğu Sonlu eleman analizi ile test edilmiş ve deneyel çalışma verileri kullanılarak YSA yöntemi ile yeni bir model oluşturulmuştur. Oluşturulan yeni model ile; gerilme, deformasyon, gerilme yoğunluğu gibi parametreler için güvenilir tahminler yapılmıştır. Bu çalışma, mühendislerin ve tasarımcıların dikdörtgen delikli plakalar üzerindeki gerilme analizlerini hızlı ve verimli bir şekilde yapabilmelerini sağlayacak bir yöntem sunmaktadır.

Anahtar Kelimeler

• Dikdörtgen delikli plak
• kayma gerilmesi
• gerilme yığılma faktörü (GYF)
• sonlu elemanlar analizi (SEA)
• yapay sinir ağları (YSA).

Kaynakça

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