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A spring-layer model for a bi-layered plate-strip with initial stress through imperfect contact interface     
Yazarlar
Doç. Dr. Ahmet DAŞDEMİR
Kastamonu Üniversitesi, Türkiye
Özet
In this paper, we present our report on the forced vibration of a bi-layered plate-strip with initial stress resting on a rigid foundation induced by a time-harmonic force. The investigation is carried out according to the piecewise homogeneous body model with utilizing the three-dimensional linearized theory of elastic waves in initially stressed bodies (TLTEWISB). The materials of the body are chosen to be linearly elastic, homogeneous, and isotropic. The interface between the layers is assumed to be imperfect, and is simulated by the spring-layer model. A similar degree of imperfection on the interface is realized in the normal and tangential directions. The mathematical model for the problem under consideration is designed, and the system of the equations of motion is approximately solved by employing the finite element method (FEM). The numerical results explaining the influence of the parameter that characterizes the degree of corresponding imperfectness on the dynamic response of the plate-strip are presented. In particular, we demonstrate that the distributions of the normal stress become flat, as the normal-spring parameter increases.
Anahtar Kelimeler
Dimensionless frequency | Forced vibration | Incomplete contact | Initial stress | Spring-type imperfectness
Makale Türü Özgün Makale
Makale Alt Türü ESCI dergilerinde yayımlanan tam makale
Dergi Adı SOUND AND VIBRATION
Dergi ISSN 1541-0161
Dergi Tarandığı Indeksler Scopus
Makale Dili İngilizce
Basım Tarihi 06-2019
Cilt No 53
Sayı 3
Sayfalar 65 / 74
Doi Numarası 10.32604/sv.2019.04087
Makale Linki http://www.techscience.com/sv/v53n3/33740