The effect of couple stresses on stress distribution in a thin plate due to the pressure of a rivet on one side of a circular hole

1969 ◽  
Vol 19 (1) ◽  
pp. 53-58 ◽  
Author(s):  
Rathindra Nath Das
Keyword(s):  
Stress Distribution ◽  
Circular Hole ◽  
Thin Plate ◽  
Couple Stresses

Research on Vibration Control of Thin Plate Based on Pre-Stressing

2018 ◽  
Author(s):  
Cheng Zhang ◽  
Jian-run Zhang ◽  
Xi Lu
Keyword(s):  
Differential Equation ◽  
Stress Distribution ◽  
Tensile Stress ◽  
Vibration Control ◽  
Thin Plate ◽  
Natural Frequencies ◽  
Control Method ◽  
Dynamic Stiffness ◽  
Thin Plates ◽  
Shape Functions

The weak dynamic stiffness of thin plate is one of the important factors that limit the use of thin plate. Improving the dynamic stiffness of thin plate is one of the effective methods for the vibration control of thin plate. In this paper, the influence of pre-stress on the vibration characteristics of thin plate is studied. A vibration control method of thin plate based on pre-stress is proposed. The vibration differential equation of quadrate thin plate under pre-stressing is established. Using the Galerkin principle, the natural frequencies corresponding to the shape functions of the quadrate thin plates under pre-stressing in different distribution forms are obtained. By comparison, it is found that pre-stressing on the thin plate can change the dynamic stiffness of thin plate. In particular, tensile stress can increase the dynamic stiffness of thin plate while compressive stress can reduce the dynamic stiffness of the thin plate. The greater the pre-stress, the more obvious the effect. In the end, the requirements of the pre-stress distribution which can improve the dynamic stiffness of thin plate effectively are derived.

scholarly journals Approximate Biaxial Stress Solution for Orthotropic Open-Hole Composite Laminates

1996 ◽  
Vol 5 (4) ◽  
pp. 096369359600500
Author(s):  
C. Filiou ◽  
C. Soutis
Keyword(s):  
Approximate Solution ◽  
Stress Distribution ◽  
Circular Hole ◽  
Composite Laminates ◽  
Composite Laminate ◽  
Biaxial Loading ◽  
Biaxial Stress ◽  
Orthotropic Composite ◽  
Open Hole ◽  
Simple Approximate Solution

A simple approximate solution has been derived for the stress distribution near a circular hole applicable to any orthotropic composite laminate subjected to biaxial loading. The degree of accuracy of this solution was found to be overall acceptable, but strongly dependent upon the laminate lay-up and biaxiality ratio.

The Fatigue Crack and Delamination Behavior on the Fuselage-Wing Intersection Containing Variable Notches

2003 ◽  
Vol 17 (08n09) ◽  
pp. 1540-1546 ◽  
Author(s):  
Sam Hong Song ◽  
Cheol Woong Kim
Keyword(s):  
Fatigue Crack ◽  
Stress Distribution ◽  
Crack Propagation ◽  
Circular Hole ◽  
Fatigue Crack Propagation ◽  
Aluminum Layer ◽  
Fiber Layer ◽  
Stress Criterion ◽  
Fatigue Crack Propagation Behavior ◽  
Propagation Behavior

The delamination and the fatigue crack propagation behavior in aramid fiber reinforced metal laminates(AFRMLs) containing a saw-cut and circular hole such as the fuselage-wing intersection was investigated. The fatigue crack propagation in aluminum layer is accompanied with the delamination between aluminum layer and fiber layer. The delamination deteriorates the fiber bridging mechanism in the crack tip of AFRMLs. Therefore, this study evaluates the stress distribution of AFRMLs containing a saw-cut and circular hole using the Average Stress Criterion (ASC) model. The delamination zone was observed by ultrasonic C-scan images. As the result of this study, in case of AFRMLs containing a saw-cut specimen. the fatigue crack propagation always occurred in aluminum layer and the delamination zone formed along the fatigue crack. However, in case of AFRMLs containing a circular hole specimen, the delamination zone was formed in two types. First, delamination zone was formed along the fatigue crack in aluminum layer. Second, delamination zone was formed without any fatigue crack around the circular hole. Consequently, delamination zone was formed dependently on the notch shape and the stress distribution.

A GENERALIZED THERMO-VISCO-ELASTIC PROBLEM OF AN INFINITELY EXTENDED THIN PLATE CONTAINING A CIRCULAR HOLE

1996 ◽  
Vol 19 (5) ◽  
pp. 465-480 ◽  
Author(s):  
Santwana Banerjee (Mukhopadhyay) ◽  
S. K. Roychoudhuri
Keyword(s):  
Circular Hole ◽  
Thin Plate ◽  
Elastic Problem

Investigation on residual stress distribution in thin plate subjected to two sided laser shock processing

2019 ◽  
Vol 111 ◽  
pp. 146-155 ◽  
Author(s):  
Xingquan Zhang ◽  
Zhiwei Huang ◽  
Bin Chen ◽  
Yiwei Zhang ◽  
Jinyu Tong ◽  
...  
Keyword(s):  
Residual Stress ◽  
Stress Distribution ◽  
Thin Plate ◽  
Residual Stress Distribution ◽  
Laser Shock ◽  
Laser Shock Processing ◽  
Shock Processing

Elastic Equilibrium of a Plate With a Reinforced Elliptical Hole

1960 ◽  
Vol 27 (2) ◽  
pp. 283-288 ◽  
Author(s):  
Eugene Levin
Keyword(s):  
Circular Hole ◽  
Thin Plate ◽  
Plane Stress ◽  
Complex Variable ◽  
Elliptical Hole ◽  
Elastic Equilibrium ◽  
Stress Problem ◽  
Elliptical Ring ◽  
Plane Stress Problem ◽  
Digital Computers

An infinite thin plate with an elliptical hole reinforced by a confocal elliptical ring is subjected to loads in the plane. A solution to the generalized plane-stress problem is obtained using the complex variable techniques of Muskhelishvili. The result is presented in a form well suited to evaluation by digital computers. Specialization to a circular hole with a negligibly thin reinforcement is shown to be in agreement with results obtained by other authors.

Stress Distribution Around a Circular Hole in Square Plates, Loaded Uniformly in the Plane, on Two Opposite Sides of the Square

1981 ◽  
Vol 48 (1) ◽  
pp. 203-204 ◽  
Author(s):  
M. Erickson ◽  
A. J. Durelli
Keyword(s):  
Stress Distribution ◽  
Circular Hole ◽  
Experimental Procedure ◽  
Previous Solution ◽  
Square Plate

The complete stress distribution around a circular hole, located in the center of a square plate, has been determined photoelastically for the case of the plate loaded uniformly on two opposite sides. The study was conducted parametrically for a range of the ratio D/W of the diameter of the hole to the side of the square from 0.20 to 0.83. The results obtained permit the determination of the stresses for any biaxial condition and verify a previous solution obtained for the case of the pressurized hole. The experimental procedure is briefly described.

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