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  Citation Number 3
 Views 11
 Downloands 2
Farklı Geometrik Yapılardaki Çarpışma Kutularının İçerisine Yerleştirilen Alüminyum Köpük Malzemenin Enerji Sönümleme Kapasitesi Üzerine Etkisinin İncelenmesi
2019
Journal:  
Politeknik Dergisi
Author:  
Abstract:

Otomobillerde kullanılan çarpışma kutuları olası bir kaza durumunda ortaya çıkan darbe enerjisini sönümleyerek otomobil içerisine en az seviyede iletilmesini sağlayan bağlantı elemanlarıdır. Bu görevlerinden dolayı çarpışma kutuları otomobiller üzerinde önemli bir komponent durumundadır. Yapılan çalışmada daire, kare, beşgen ve altıgen kesite sahip çarpışma kutularının içerisine alüminyum esaslı metalik köpük malzeme yerleştirilmiş ve sonlu elemanlar analizleri ile enerji sönümleme kapasitesindeki değişimler incelenmiştir. Yapılan tüm analizler Ls-Dyna programı ile gerçekleştirilmiştir. Gerçek kaza koşullarının canlandırılması amacıyla çarpışma kutularına 500 kg’lık kütle 17,7 m/s’lik bir hız ile çarptırılmıştır. Çalışmanın sonucunda içi boş çarpışma kutularının içerisine yerleştirilen alüminyum esaslı metalik köpük malzemelerin enerji sönümleme kapasitesini önemli derecede arttırdığı tespit edilmiştir.

Keywords:

The Effect Of Aluminium Foam Material On The Energy Absorption Capacity Of Different Geometric Structure Crash Boxes
2019
Journal:  
Politeknik Dergisi
Author:  
Abstract:

Crash boxes used in automobiles are connecting elements that can transmit the impact energy to the automobile at the minimum level by damping the impact energy that arises in case of a possible accident. Due to this role, crash boxes are an important component on automobiles. In the study, aluminum based metallic foam material was placed in crash boxes with circle, square, pentagonal and hexagonal sections and the changes in energy absorption capacity were invastigated using finite elements analysis. All analyses were performed with Ls-Dyna program. In order to simulate real accident conditions, a mass of 500 kg was hit at a speed of 17.7 m / s to the crash boxes. As a result of the study, it has been found that the aluminum based metallic foam materials placed in the hollow crash boxes have been found to significantly increase the energy absorption capacity.

Keywords:

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Politeknik Dergisi

Field :   Mühendislik

Journal Type :   Uluslararası

Metrics
Article : 1.729
Cite : 5.043
2023 Impact : 0.223
Politeknik Dergisi