Nonlinear Stability Analysis of Elastic Cylinders under Global Bending

2014 ◽  
Vol 638-640 ◽  
pp. 1754-1757
Author(s):  
Lei Chen
Keyword(s):  
Compressive Stress ◽  
Geometric Nonlinearity ◽  
Failure Behavior ◽  
Nonlinear Stability Analysis ◽  
Pure Bending ◽  
Buckling Strength ◽  
Buckling Stress ◽  
Bifurcation Buckling ◽  
Elastic Cylinders ◽  
Axial Compressive Stress

The cylindrical shells under global bending with different geometric parameters display different failure behavior. The size of typical buckles under axial compressive stress regimes is rather small and extends over a very small zone, with the axial compressive stress reaching the critical value. The first estimate of the elastic buckling strength in bending is the condition in which the most compressed fiber reaches the buckling stress for uniform axial compression. For short cylinders, local bifurcation buckling occurs at the middle of the most compressed side of the shell, and geometric nonlinearity has a little effect on the buckling strength, while for medium-length and long cylinders, the geometric nonlinearity and the ovalization of the cross-section should be considered. This paper explores the failure behavior in elastic cylinders in pure bending.

On the Linear Buckling of Circular Cylindrical Shells Under Asymmetric Axial Compressive Stress Distributions

1966 ◽  
Vol 70 (672) ◽  
pp. 1095-1097 ◽  
Author(s):  
D. J. Johns
Keyword(s):  
Compressive Stress ◽  
Cylindrical Shells ◽  
Bending Moment ◽  
Transverse Load ◽  
Stress Distributions ◽  
Pure Bending ◽  
Linear Buckling ◽  
Circular Cylindrical Shells ◽  
Axial Compressive Stress

The linear buckling of circular cylindrical shells is considered with particular attention to the cantilever shell subjected to either a pure bending moment (M) or transverse load (P)—see Fig. 1. It is believed that the conclusions reached have wider application to more general loading cases.

THE DYNAMIC IMPACT RESPONSE OF PP∕PA BLENDS UNDER MULTI-AXIAL COMPRESSIVE STRESS STATE

2008 ◽  
Author(s):  
Shi Shaoqiu ◽  
Yu Bing ◽  
Yan Linbao ◽  
Alberto D’Amore ◽  
Domenico Acierno ◽  
...  
Keyword(s):  
Stress State ◽  
Compressive Stress ◽  
Impact Response ◽  
Dynamic Impact ◽  
Axial Compressive Stress

Inelastic Shear Buckling Strength of Low-Yield-Point Steel Shear Wall

2014 ◽  
Vol 501-504 ◽  
pp. 2509-2514
Author(s):  
Jian Hua Shao ◽  
Wen He
Keyword(s):  
Yield Point ◽  
Pure Shear ◽  
Shear Wall ◽  
Unified Theory ◽  
Buckling Strength ◽  
Buckling Stress ◽  
Steel Shear Wall ◽  
Shear Buckling ◽  
Inelastic Shear ◽  
The Relationship

The mechanical properties of low-yield-point (LYP) steel and its advantages as seismic steel are introduced in this paper. The theoretical equations of inelastic shear buckling stress at the pure shear action for the LYP steel are derived from unified theory of plastic buckling. The relationship curve of inelastic shear buckling strength and width-thickness ratio of LYP steel shear wall at the different height-width ratios of plate is given through iteration calculation process. The effectiveness of theoretical equations used for calculating the buckling stress is verified by experimental results.

scholarly journals Design and analysis of a toroidal tester for the measurement of core losses under axial compressive stress

2017 ◽  
Vol 432 ◽  
pp. 519-526 ◽  
Author(s):  
Natheer Alatawneh ◽  
Tanvir Rahman ◽  
David A. Lowther ◽  
Richard Chromik
Keyword(s):  
Compressive Stress ◽  
Core Losses ◽  
Axial Compressive Stress

Out-of-plane behavior of confined masonry walls with aspect ratios greater than one

2021 ◽  
Vol 48 (1) ◽  
pp. 89-97
Author(s):  
Jorge Varela-Rivera ◽  
Joel Moreno-Herrera ◽  
Luis Fernandez-Baqueiro ◽  
Juan Cacep-Rodriguez ◽  
Cesar Freyre-Pinto
Keyword(s):  
Experimental Study ◽  
Aspect Ratio ◽  
Compressive Stress ◽  
Masonry Walls ◽  
Confined Masonry ◽  
Aspect Ratios ◽  
Out Of Plane ◽  
Axial Compressive Stress ◽  
Compressive Strut ◽  
Failure Line

An experimental study on the out-of-plane behavior of confined masonry walls is presented. Four confined walls with aspect ratios greater than one were tested in the laboratory. Walls were subjected to combined axial and out-of-plane uniform loads. The variables studied were the aspect ratio and the axial compressive stress of walls. It was observed that the out-of-plane strength of walls increased as the aspect ratio or the axial compressive stress increased. Failure of walls was associated with crushing of masonry. Analytical out-of-plane strength of walls was determined using the yielding line, failure line, modified yielding line, compressive strut and bidirectional strut methods. It was concluded that the experimental out-of-plane strength of walls was best predicted with the bidirectional strut method.

On the Buckling of Circular Cylindrical Shells Under Pure Bending

1961 ◽  
Vol 28 (1) ◽  
pp. 112-116 ◽  
Author(s):  
Paul Seide ◽  
V. I. Weingarten
Keyword(s):  
Galerkin Method ◽  
Compressive Stress ◽  
Cylindrical Shells ◽  
Bending Stress ◽  
Pure Bending ◽  
Circular Cylindrical Shells ◽  
The Stability ◽  
The Galerkin Method

The stability of circular cylindrical shells under pure bending is investigated by means of Batdorf’s modified Donnell’s equation and the Galerkin method. The results of this investigation have shown that, contrary to the commonly accepted value, the maximum critical bending stress is for all practical purposes equal to the critical compressive stress.

Analysis on the Critical Buckling Stress in the TC4 Thin Plate Weldment

2011 ◽  
Vol 704-705 ◽  
pp. 1387-1392
Author(s):  
Xiu Ling Qi ◽  
Yong Zhang
Keyword(s):  
Compressive Stress ◽  
Thin Plate ◽  
Empirical Equation ◽  
Analytic Solution ◽  
Critical Value ◽  
Theoretical Formula ◽  
Buckling Stress ◽  
Longitudinal Residual Stress ◽  
Uneven Heating ◽  
Buckling Distortion

There exists a large amount of longitudinal tensile stress in the weld bead of the TC4 thin plate for the uneven heating of the welding thermal resource. Owing to the equilibrium of the internal stress, longitudinal compressive stress is also large on the edge of the thin plate. When the compressive stress is larger than the critical buckling stress, the buckling distortion can take place. Therefore, the value of the critical buckling stress is important to judge the distortion. Some theoretical formula and empirical equation can not give the suitable solution to the judge of the critical value of the certain TC4 thin plate weldment because of the difficulty in the analytic solution and difference in the feature of the material and boundary condition. Finite element method was utilized to estimate the value of the buckling stress in the thin plate. Based on the solution, the adjustment of welding longitudinal compressive stress model is done. Henceforth, the critical buckling stress can be determined by the method. Keywords: critical buckling stress, TC4 thin plate, welding longitudinal residual stress

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