Verification of nonlinear finite element modelling of I-shaped steel beams under combined loading

Ekonomik zorluklar ve laboratuvar imkanlarının kısıtlı olmasından dolayı gerçek deneyler yerine sonlu elemanlar yöntemi kullanılarak bilgisayar programında sayısal deneyler yapılabilir. Bu çalışmada aynı anda zayıf eksen altında eğilmeye ve eksenel basınç kuvvetine maruz kalmış I-kesitli çelik kirişlerin sonlu elemanlar yöntemi ile hesap yapan Abaqus 6.3 adlı bilgisayar programı ile modellenmesi yapılmıştır. Yapılan modelin doğruluğu gerçek laboratuvar deney sonuçlarıyla kıyaslanarak test edilmiştir. Bu makalede modelleme basamakları, kullanılan paket programın özellikleri ve sonlu elemanlar modelinin aşamaları ile yapılan kabuller detaylı olarak sunulmuştur.

Experimental testing is expensive and time consuming to perform large series of tests. The other choice is to use a numerical experimental series with the help of a computer by using nonlinear finite element software. Given the reliance of the present work on this analytical method, it is important to clearly state the modeling approached used, software packages employed, and any assumptions made during the construction of the finite element analogs for the I-shaped cross-sections under investigation. In addition, verification of the modeling techniques against full-scale experimental testing can be of great value. The commercial finite element software package ABAQUS 6.3 is employed in this research. All modeling reported herein considers both nonlinear geometric and material influences.

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