SavedAdd your journal

Journals / Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi / 2020 / Cilt: 35 - Sayı: 4

Numerical investigation of energy absorption behaviors of variable thickness tubes

Değişken kalınlıklı tüplerin enerji sönümleme davranışlarının sayısal incelenmesi

Hasan GEDİKLİ
Dursun MERİÇ
Pages
1939–1956
Publication Date
2022-10-18
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The layer thicknesses obtained as a result of optimization showed that the energy absorption behavior of the VTT was improved.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study; the energy absorption behaviors of variable thickness tube (VTT) made of aluminum alloy AA6063 which has different thickness (0.5 mm - 4 mm) layers in axial direction and different taper angles (0°, 5° and 10°) were numerically investigated.
📊
Key Findings & Data:As a result of analysis deformations pattern, forcedisplacement and energy-time graphs of the tubes were obtained.
💡
Conclusion & Impact:The layer thicknesses obtained as a result of optimization showed that the energy absorption behavior of the VTT was improved.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this study; the energy absorption behaviors of variable thickness tube (VTT) made of aluminum alloy AA6063 which has different thickness (0.5 mm - 4 mm) layers in axial direction and different taper angles (0°, 5° and 10°) were numerically investigated. As a result of analysis deformations pattern, forcedisplacement and energy-time graphs of the tubes were obtained. Optimum layer thicknesses which provide the lowest peak force and the highest specific energy absorbing (SEA) values for different taper angles, were determined by the optimization method which includes Feedforward Artificial Neural Networks (FNN) technique. The layer thicknesses obtained as a result of optimization showed that the energy absorption behavior of the VTT was improved.

Özet

Bu çalışmada; alüminyum alaşımı AA6063’den yapılmış farklı koniklik açısı (0°, 5° ve 10°) ve ekseneldoğrultuda farklı kalınlığa (0,5 mm - 4 mm) sahip bölgelerden oluşmuş değişken kalınlıklı tüplerin (DKT)enerji sönümleme davranışları sayısal olarak incelenmiştir. Analizler sonucunda tüplerin deformasyonşekilleri, kuvvet-yer değiştirme ve enerji-zaman grafikleri elde edilmiştir. Farklı koniklik açıları için endüşük pik kuvvet ve en yüksek özgül enerji sönümleme (ÖES) değerlerini sağlayan optimum bölgekalınlıkları, İleri Beslemeli Yapay Sinir Ağları (İBYSA) tekniğini içeren optimizasyon yöntemi ilebelirlenmiştir. Optimizasyon sonucunda elde edilen katman kalınlıklarının DKT’nin enerji sönümlemedavranışını iyileştirdiği görülmüştür.

🔖

Cite This Article

GEDİKLİ, H., MERİÇ, D. (2022). Numerical investigation of energy absorption behaviors of variable thickness tubes. Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi, Cilt: 35 - Sayı: 4, 1939–1956. https://ajindex.com/articles/523499

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (14)

  1. Abramowicz W., Jones N., Dynamic axial crushing of circular tubes, International Journal of Impact Engineering, 2 (3), 263-281, 1984
  2. Salehghaffari S., Tajdari M., Panahi M., Mokhtarnezhad F., Attempts to improve energy absorption characteristics of circular metal tubes subjected to axial loading, Thin-Walled Structures, 48 (6), 379-390, 2010
  3. Xu B., Cheng W., Wenlong X., An efficient energy absorber based on fourfold-tube nested circular tube system, Thin-Walled Structures, 137, 143-150, 2019
  4. Xiong Z., Zhuzhu W., Hui Zhang, Axial crushing and optimal design of square tubes with graded thickness, Thin-Walled Structures, 84, 157-163, 2014
  5. Christopher P. K., Mohammadi M., Raja K. M., Inal K., Effects of elastic–plastic behaviour on the axial crush response of square tubes, Thin-Walled Structures, 93, 64-87, 2015
  6. Xiong Z., Hui Z., Weijie R., Axial crushing of tubes fabricated by metal sheet bending, Thin-Walled Structures, 122, 252-263, 2018
  7. Caihua Z., Yan Z., Bo W., Crashworthiness design for trapezoid origami crash boxes, Thin-Walled Structures, 117, 257-267, 2017
  8. Caihua Z., Shizhao M., Chaoxiang X., Bo W., Xiangjun B., Peng H., Mingfa R., The energy absorption of rectangular and slotted windowed tubes under axial crushing, International Journal of Mechanical Sciences, 141, 2018
  9. Özer M., Altınkaynak A., Temiz V., Mutlu T., Dışpınar T., Özgen A., Yücel M., Dynamic analysis of front loading washing machine using finite element method, Journal of the Faculty of Engineering and Architecture of Gazi University, 31 (3), 773-780, 2016
  10. Yaman K., Özcan M., Tekiner Z., Determination of the spinning parameters of AISI 304L stainless steel by using finite element method, Journal of the Faculty of Engineering and Architecture of Gazi University, 33 (1), 299-331, 2018
  11. Caihua Z., Shizhao M., Chaoxiang X., Bo W., Xiangjun B., Peng H., Mingfa R., The energy absorption of rectangular and slotted windowed tubes under axial crushing, International Journal of Mechanical Sciences, 141, 89-100, 2018
  12. Altın M., Investigation of performances of energy absorbing profiles having different geometries under oblique loads. Journal of the Faculty of Engineering and Architecture of Gazi University 34 (3), 1517-1525, 2019
  13. Kai Y., Shanqing X., Shiwei Z., Yi M., Multi-objective optimization of multi-cell tubes with origami patterns for energy absorption, Thin-Walled Structures, 123, 100-113, 2018
  14. Duarte I., Opara L. K.-, Oliveira J. D.