Silindirik lamine cam kabuk yapıların deneysel ve sayısal çözümlemesi

Yıl 2017, Cilt: 23 Sayı: 6, 646 - 651, 15.12.2017

Ebru Dural

Öz

Lamine
cam polivinil butiral (PVB) ara tabaka ile birbirine bağlanmış iki cam
tabakadan oluşan emniyet cam türüdür. PVB ara tabaka, kırılma olsa bile cam
tabakaları bir arada tutar ve yaralanma riskini en aza indirir. Uzun yıllardır
ulaşım ve otomotiv endüstrilerinde kullanılmakta olan lamine cam birimler yük
ve çevresel koşullara gösterdikleri büyük dirençler nedeniyle, günümüzde yaygın
olarak mimari cam ürünlerinde kullanılmaktadırlar. Lamine camlar oldukça
karmaşık mekanik davranış gösterirler çünkü çok ince oldukları için kolayca
büyük yer değiştirmeler gösterirler ve malzeme özellikleri arasında büyük bir
fark vardır. Lamine cam ünitelerin matematiksel karmaşıklıkları ve süreksiz
gerilme dağılımları nedeniyle, çalışmaların çoğu lamine cam birimlerinin
doğrusal olmayan davranışı yerine doğrusal davranışları ile ilgilidir. Bu
çalışmada, silindirik lamine cam kabukların çözümlenmesi için sonlu elemanlar
modeli geliştirilmiş ve modelin doğrulanması için deneysel çalışmalar
yürütülmüştür. Sunulan grafiklerden gözlendiği gibi sayısal sonuçlar ve
deneylerden elde edilen sonuçlar uyum içerisindedir.

Anahtar Kelimeler

Lamine cam, Silindirik kabuk, Doğrusal olmayan davranış, Deneysel analiz, Sonlu elemanlar yöntemi

Experimental and numerical analysis of cylindrical laminated glass shells

Öz

Laminated
glass is a kind of safety glass which consists of two glass layers with an
interlayer Polyvinyl Butyral (PVB) in between them. Even if the breaking
happens, the glass layers are held together by the PVB interlayer and minimize
the risk of injury. Laminated glass units have long been used in the
transportation and automotive industries. Because of their resistance to a wide
range of loading and environmental condition, nowadays they are extensively
used in architectural glazing products Laminated glasses display highly
complicated structural behavior because they can easily perform large
displacement since they are very thin and there is a big difference between the
material properties. Because of mathematical complexity and discontinuous
stress distributions of laminated glass units most of the studies are about
linear behavior rather than nonlinear behavior of the laminated glass units. In
the current study, a finite element model is developed for the analysis of
cylindrical laminated glass shells and experimental studies are carried out for
the validation of model. It is observed from the figures presented, numerical
results and experimental results from the tests are in good agreement.

Anahtar Kelimeler

Laminated glass, Cylindrical shell, Nonlinear behavior, Experimental analysis, Finite element method

Kaynakça

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