Experimental Study on the Energy Absorption Behavior of Syntactic Foam-Filled Thin-Walled Tubes

Öz

Thin-walled profiles with different core structures have been utilized to obtain lightweight energy absorbers. In this paper, syntactic foams introduced aluminum tubes. Syntactic foams are composed of epoxy resin and expanded glass granules. The energy absorption behavior of empty tubes and syntactic foam-filled tubes are studied through quasi-static axial compression tests. The effects of the interaction between the tube and the foam on the deformation mode are analyzed in the aspect of several parameters such as specific energy absorption, energy absorption effectiveness, initial peak load, and average load. It is found that the addition of syntactic foam to the aluminum tube increases the specific absorbed energy by 42 %.

Anahtar Kelimeler

• Aluminum tube
• Crashworthiness
• Expanded glass
• Syntactic foam

Boşluklu Köpük Dolgulu Ince Duvarlı Tüplerin Enerji Absorpsiyon Davranışı Üzerine Deneysel Çalışma

Öz

Hafif enerji emiciler elde etmek için farklı çekirdek yapılarına sahip ince cidarlı profiller değerlendirilmektedir. Bu çalışmada, boşluklu köpükler alüminyum tüplere doldurulmuştur. Boşluklu köpükler, epoksi reçine ve genleştirilmiş camdan oluşturulmuştur. Boş tüplerin ve boşluklu köpük dolgulu tüplerin enerji absorpsiyon davranışı, statik eksenel sıkıştırma testi ile araştırılmıştır. Tüp ve köpük arasındaki etkileşim ve bunun deformasyon modu üzerindeki etkisi araştırılmıştır. Spesifik enerji absorpsiyonu, enerji absorpsiyon etkinliği, ilk tepe yük, ortalama yük gibi çeşitli parametreler karşılaştırılmıştır. Geliştirilen boşluklu köpüğün aluminyum boruya ilavesi spesifik enerji absorpsiyonunda %42 iyileştirme sağlamıştır.

Anahtar Kelimeler

• Alüminyum boru
• Boşluklu köpük
• Çarpışmaya Dayanıklılık
• Genleştirilmiş cam

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