Mathematical modelling of thermoelasticity problems for thin biperiodic cylindrical shells

نویسندگان

چکیده

Abstract The objects of consideration are thin linearly thermoelastic Kirchhoff-Love-type circular cylindrical shells having a periodically microheterogeneous structure in circumferential and axial directions ( biperiodic ). aim this contribution is to formulate discuss two new averaged mathematical models for the analysis selected dynamic thermoelasticity problems under consideration: non-asymptotic tolerance consistent asymptotic . starting equations well-known governing linear Kirchhoff-Love theory elastic combined with Duhamel–Neumann constitutive relations coupled known linearized Fourier heat conduction equation which sources neglected. For microperiodic consideration, mentioned above have highly oscillating, non-continuous periodic coefficients. model derived applying averaging technique certain extension stationary action principle It has constant coefficients depending also on cell size. Hence, makes it possible study effect microstructure size global shell length-scale obtained using approach being independent period lengths. Moreover, comparison between proposed here direction only uniperiodic ) presented.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

On the Effect of Period Lengths on Dynamic Stability of Thin Biperiodic Cylindrical Shells

The object of considerations is a thin linear-elastic cylindrical shell having a periodic structure (i.e. a periodically varying thickness and/or periodically varying elastic and inertial properties) in both directions tangent to the shell midsurface. Such shells are called biperiodic. The aim of this paper is to propose a new averaged non-asymptotic model of biperiodic shells, which makes it p...

متن کامل

Imperfection-Insensitive Axially Loaded Thin Cylindrical Shells

The high efficiency of circular monocoque cylindrical shells in carrying axial loads is impaired by their extreme sensitivity to imperfections and there is an extensive body of literature that addresses this behavior. Instead of following this classical path, focused on circular cross-sections, this paper presents a novel approach that adopts optimal symmetry-breaking wavy cross-sections (wavy ...

متن کامل

Sound Transmission Through Thin Cylindrical Shells

An analysis i presented ofthe impedance presented by a thin cylindrical e astic shell to a pressure or normal stress as a function of the axial wavelength and the angular dependence of the forces. Results of computation are presented graphically. This information is then used to compute a measure of the sound transmitted through the shell immersed inair for various particular cases. The theory ...

متن کامل

Modelling of Random Geometrical Imperfections and Reliability Calculations for Thin Cylindrical Shell Subjected to Lateral Pressure

It is well known that it is very difficult to manufacture perfect thin cylindrical shell. Initial geometrical imperfections existing in the shell structure is one of the main determining factor for load bearing capacity of thin cylindrical shell under uniform lateral pressure. As these imperfections are random, the strength of same size cylindrical shell will also random and a statistical metho...

متن کامل

Vibration Analysis of Thin Cylindrical Shells Using Wave Propagation Approach

The vibration analysis of cylindrical shells using wave propagation method is presented. Results obtained using the method have been evaluated against those available in the literature. Comparison of the results by the present method and numerical "nite element method is also carried out. It is possible to conclude through the comparisons that the present method is convenient, e!ective and accu...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Continuum Mechanics and Thermodynamics

سال: 2021

ISSN: ['0935-1175', '1432-0959']

DOI: https://doi.org/10.1007/s00161-021-01060-w