Three–dimensional Stability Loss Problems Of Local Near-surface Buckling Of A System Consisting Of An Elastıc Bond Layer And An Elastic Covering Layer

Yıl 2014, Cilt: 2 Sayı: 2, 59 - 75, 01.10.2014

Elman Hazar

Öz

Within the framework of a piecewise homogenous body model and by the use of a threedimensional linearized theory of stability (TLTS), the local near-surface buckling of a material system consisting of a half-space which is covered by the single layer and halfspace materials is elastic. The equations of TLTS are obtained from the three-dimensional geometrically nonlinear equations of the theory of viscoelasticity by using the boundary form perturbations technique. By employing the Laplace and Fourier transform, a method for solving the problem is developed. Numerical results on the critical compressive forces and the critical times are presented.Buckling instability, curved-layer, critical time, local near-surface buckling, stability, viscoelastic layer

Anahtar Kelimeler

Buckling instability, curved-layer, critical time, local near-surface buckling, stability, viscoelastic layer.

Üç Boyutlu Teory Çerçevesinde Yerel Yüzeye Yakın Tabakalarda Elastik ve Elastik Bağlı Sistemler İçin Kayıp Problemleri

Öz

Bu çalışmada üç boyutlu linerleştirilmiş teory kullanılarak (TLTS), bir boyutlu homojen sistem modeli çerçevesinde yerel yüzeye yakın tek katmanlı ve yarı-uzay elastic malzemeler ile kaplanmış bir sisteme bakılmıştır. Perturbasyo tekniği uygulayarak viskoelastik teorisinin üç boyutlu denklemleri ve sınır koşulları yardımı ile TLTS denklemleri elde edilmiştir. Laplace ve Fourier Yöntemlerinden yararlanarak, problem çözmek için yeni bir yöntem geliştirilmiştir

Anahtar Kelimeler

Burkulma kararsizliğı, kavisli dalga, kritik zaman , yüzeye yakın burkulma, kararlılık, viskoelastik yerel tabaka

Kaynakça

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