Investigation of Compressive Strength and Energy Absorption of Cylinder Corrugated Sandwich Structures with Different Geometric Configurations

İlyas Bozkurt

Makale detayları

Investigation of Compressive Strength and Energy Absorption of Cylinder Corrugated Sandwich Structures with Different Geometric Configurations

Yazarlar:

İlyas Bozkurt

Yayıncı:

Fırat University

Ana Başlıklar:

Katı Mekanik | Makine Mühendisliğinde Sayısal Yöntemler | Sayısal Modelleme ve Mekanik Karakterizasyon | Kompozit ve Hibrit Malzemeler

Dergi:

Firat University Journal of Experimental and Computational Engineering Vol.4 Issue 1, pp.115-135

Belge Tipi:

Makale

Yayın Tarihi:

2/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001341168

pISSN:

2822-2881

Anahtar kelimeler:

Özet:

 The aim of this study is to numerically investigate and compare the compressive strength and energy absorption of CFRP composite cylinder sandwich structures with five different geometric configurations. The crushing performances Peak crushing force PCF, Mean crushing force MCF, Crushing force efficiency CFE, energy absorption EA and specific energy absorption SEA of the composite cylinder for different core configurations and the failure types were determined. Compression analyses were performed in LS DYNA finite element program using MAT-54 material model with progressive failure analysis based on the combination of Hashin failure criterion, Cohesive Zone Model CZM and Bilinear traction-separation law. Among the five different specimens in the study, the highest PCF value was Trapeozidal with axial corrugated core while the lowest was Arc shaped with circular core. Axial arc shaped core was the sandwich structure with the highest SEA value, while circular sinusoidal corrugated core was the sandwich structure with the lowest SEA value. Between axial core and circular core, the CFE value of the sinusoidal core specimen was determined to be the highest. It was observed that the effect of core structure on the deformation behavior of sandwich structures was high.

 The aim of this study is to numerically investigate and compare the compressive strength and energy absorption of CFRP composite cylinder sandwich structures with five different geometric configurations. The crushing performances Peak crushing force PCF, Mean crushing force MCF, Crushing force efficiency CFE, energy absorption EA and specific energy absorption SEA of the composite cylinder for different core configurations and the failure types were determined. Compression analyses were performed in LS DYNA finite element program using MAT-54 material model with progressive failure analysis based on the combination of Hashin failure criterion, Cohesive Zone Model CZM and Bilinear traction-separation law. Among the five different specimens in the study, the highest PCF value was Trapeozidal with axial corrugated core while the lowest was Arc shaped with circular core. Axial arc shaped core was the sandwich structure with the highest SEA value, while circular sinusoidal corrugated core was the sandwich structure with the lowest SEA value. Between axial core and circular core, the CFE value of the sinusoidal core specimen was determined to be the highest. It was observed that the effect of core structure on the deformation behavior of sandwich structures was high.

 The aim of this study is to numerically investigate and compare the compressive strength and energy absorption of CFRP composite cylinder sandwich structures with five different geometric configurations. The crushing performances Peak crushing force PCF, Mean crushing force MCF, Crushing force efficiency CFE, energy absorption EA and specific energy absorption SEA of the composite cylinder for different core configurations and the failure types were determined. Compression analyses were performed in LS DYNA finite element program using MAT-54 material model with progressive failure analysis based on the combination of Hashin failure criterion, Cohesive Zone Model CZM and Bilinear traction-separation law. Among the five different specimens in the study, the highest PCF value was Trapeozidal with axial corrugated core while the lowest was Arc shaped with circular core. Axial arc shaped core was the sandwich structure with the highest SEA value, while circular sinusoidal corrugated core was the sandwich structure with the lowest SEA value. Between axial core and circular core, the CFE value of the sinusoidal core specimen was determined to be the highest. It was observed that the effect of core structure on the deformation behavior of sandwich structures was high.

 Bu çalışmanın amacı beş farklı geometrik konfigürasyona sahip CFRP kompozit silindir sandviç yapıların basma mukavemetlerini ve enerji absorbelerini sayısal olarak incelemek ve birbirleri ile mukayese etmektir. Çalışmada farklı çekirdek yapıları için kompozit sandviçlerin ezilme performansları Maksimum ezilme kuvveti PCF, ortalama ezilme kuvveti MCF, Ezilme kuvveti verimliliği CFE, enerji emilimi EA ve spesifik enerji emilimi SEA ve meydana gelen hasar türleri belirlenmiş. Basma analizleri LS DYNA sonlu elemanlar programında MAT-54 malzeme modeli kullanılarak Hashin hasar kriteri, Kohezif Bölge Modeli CZM ve Bilinear traction-separation yasasının kombinasyonuna dayalı ilerlemeli hasar analizi ile gerçekleştirilmiştir. Çalışmada beş farklı numune arasında PCF değeri en yüksek eksenel oluklu çekirdek yapılı Trapeozidal olurken en düşük ise dairesel oluklu çekirdek yapılı Arc shaped olmuştur. Eksenel arc shaped SEA değeri en yüksek sandviç yapı olurken, dairesel sinusoidal oluklu çekirdek ise SEA değeri en düşük sandviç yapı olmuştur. Eksenel ve dairesel oluklu çekirdek arasında sinusoidal yapının CFE değeri en yüksek olarak belirlenmiştir. Sandviç yapıların deformasyon davranışlarına çekirdek yapısının etkisinin yüksek olduğu görülmüştür.

Makale detayları

Investigation of Compressive Strength and Energy Absorption of Cylinder Corrugated Sandwich Structures with Different Geometric Configurations

Yazarlar:

İlyas Bozkurt

Yayıncı:

Fırat University

Ana Başlıklar:

Katı Mekanik | Makine Mühendisliğinde Sayısal Yöntemler | Sayısal Modelleme ve Mekanik Karakterizasyon | Kompozit ve Hibrit Malzemeler

Dergi:

Firat University Journal of Experimental and Computational Engineering Vol.4 Issue 1, pp.115-135

Belge Tipi:

Makale

Yayın Tarihi:

2/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001341168

pISSN:

2822-2881

Circular sandwich composite

Compression test

Crashworthiness

Progressive failure analysis

Finite element methodDairesel sandviç kompozit

Basma testi

Ezilme dayanımı

İlerlemeli hasar analizi

Sonlu elemanlar yöntemi

Sayı

Makale detayları

Yazarlar: İlyas Bozkurt

Yayıncı: Fırat University

Ana Başlıklar: Katı Mekanik | Makine Mühendisliğinde Sayısal Yöntemler | Sayısal Modelleme ve Mekanik Karakterizasyon | Kompozit ve Hibrit Malzemeler

Dergi: Firat University Journal of Experimental and Computational Engineering Vol.4 Issue 1, pp.115-135

Belge Tipi: Makale

Yayın Tarihi: 2/2025

Belge Dili: İngilizce

Document ID (Org No.): 2001341168

pISSN: 2822-2881

Sayı

Yazarlar:

İlyas Bozkurt

Yayıncı:

Fırat University

Ana Başlıklar:

Katı Mekanik | Makine Mühendisliğinde Sayısal Yöntemler | Sayısal Modelleme ve Mekanik Karakterizasyon | Kompozit ve Hibrit Malzemeler

Dergi:

Firat University Journal of Experimental and Computational Engineering Vol.4 Issue 1, pp.115-135

Belge Tipi:

Makale

Yayın Tarihi:

2/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001341168

pISSN:

2822-2881