In this research, softening and ratcheting behaviors of Ck20 alloy steel cylindrical shells were studied under displacement-control and force-control cyclic axial loading and the behavior of hysteresis curves of specimens was also investigated. Experimental tests were performed by a servo-hydraulic INSTRON 8802 machine. The mechanical properties of specimens were determined according to ASTM E8...

Third order shear deformation theory of cylindrical shells is employed to investigate the vibration characteristics of non-homogeneous cylindrical shells surrounded by an elastic medium. The kinematic relations are obtained using the strain-displacement relations of Donnell shell theory. The shell properties are considered to be dependent on both position and thermal environment. A suitable fun...

Abstract In this paper, a displacement based shear deformation theory formulated on the cubic in-plane field equation of Reddy and Liu is presented for static bending analysis isotropic circular cylindrical shells. The adopted accounts quadratic (parabolic) distribution transverse through shell thickness as well satisfies need stress free upper lower boundary surfaces shell. equations equilibri...

Collision of laser-driven subrelativistic high-density ion flows provides a way to create extremely compressed conglomerates and study their properties. This paper presents theoretical the electrodynamic implosion ions inside hollow spherical or cylindrical shell irradiated by femtosecond petawatt laser pulses. We propose apply very effective mechanism for acceleration in self-consistent field ...

in this paper, the ultrasonic absorption of amino acids was measured using a small cylindrical resonator at physiological ph and 25°c and a concentration of 0.1. m. the absorption of mixtures of some amino acids was also measured. in the case of cysteine-histidine, the absorption of mixtures is much larger (more than twice) than the summation of absorption of the individual amino acid. this may...