The influence of Poisson’s ratio on thickness-dependent stress concentration at elliptic holes in elastic plates

2008 ◽  
Vol 30 (1) ◽  
pp. 165-171 ◽  
Author(s):  
P YU ◽  
W GUO ◽  
C SHE ◽  
J ZHAO
Keyword(s):  
Stress Concentration ◽  
Poisson’S Ratio ◽  
Poisson's Ratio ◽  
Elastic Plates

Effect of longitudinal stress on wave propagation in width-constrained elastic plates with arbitrary Poisson's ratio

2015 ◽  
Vol 252 (7) ◽  
pp. 1615-1619 ◽  
Author(s):  
Paweł Sobieszczyk ◽  
Marcin Majka ◽  
Dominika Kuźma ◽  
Teik-Cheng Lim ◽  
Piotr Zieliński
Keyword(s):  
Wave Propagation ◽  
Poisson’S Ratio ◽  
Poisson's Ratio ◽  
Elastic Plates ◽  
Longitudinal Stress

Design Considerations for Materials with Negative Poisson’s Ratios

1993 ◽  
Vol 115 (4) ◽  
pp. 696-700 ◽  
Author(s):  
R. S. Lakes
Keyword(s):  
Stress Concentration ◽  
Poisson’S Ratio ◽  
Sandwich Panel ◽  
Poisson's Ratio ◽  
Design Considerations ◽  
Concentration Factors ◽  
Stress Concentration Factors ◽  
Poisson's Ratios ◽  
Poisson’S Ratios

This article presents a study of the implications of negative Poisson’s ratios in the design of components subjected to stress. When the Poisson’s ratio becomes negative, stress concentration factors are reduced in some situations and unchanged or increased in others. Stress decay according to Saint Venant’s principle can occur more or less rapidly as the Poisson’s ratio decreases. Several design examples are presented, including a core for a curved sandwich panel and a flexible impact buffer.

Stress Concentrations for a Family of Uniformly Reinforced Square Holes with Rounded Corners

1962 ◽  
Vol 13 (3) ◽  
pp. 223-234 ◽  
Author(s):  
W. H. Wittrick
Keyword(s):  
Stress Concentration ◽  
Poisson’S Ratio ◽  
Poisson's Ratio ◽  
Stress Concentrations ◽  
Concentration Factors ◽  
Stress Concentration Factors

SummaryThe stress concentration factors for a family of square holes, with varying degrees of curvature at the corners, and with varying amounts of compact uniform reinforcement on the boundary, have been computed for each of four loading cases. Poisson's ratio was assumed to be 1/3.

Circular Elastic Plates on Elastic Unilateral Edge Supports

1988 ◽  
Vol 55 (3) ◽  
pp. 624-628 ◽  
Author(s):  
Zekai Celep ◽  
Dog˘an Turhan ◽  
Rajeh Zaid Al-Zaid
Keyword(s):  
Circular Plate ◽  
Poisson’S Ratio ◽  
Spring Constant ◽  
Poisson's Ratio ◽  
Elastic Plates ◽  
Circular Arc ◽  
Elastic Circular Plate

The response of an elastic circular plate supported unilaterally by elastic springs along its edge is studied. A load which is uniformly distributed along a circular arc of the plate is considered. The loss of the contact along the edge of the plate, the variations of deflections and those of reactions are presented. The influences of the position of loading, the spring constant, and Poisson’s ratio are shown in various figures.

Stress Concentrations for Uniformly Reinforced Equilateral Triangular Holes with Rounded Corners

1963 ◽  
Vol 14 (3) ◽  
pp. 254-264 ◽  
Author(s):  
W. H. Wittrick
Keyword(s):  
Stress Concentration ◽  
Poisson’S Ratio ◽  
Poisson's Ratio ◽  
Stress Concentrations ◽  
Concentration Factors ◽  
Stress Concentration Factors

SummaryThe stress concentration factors for equilateral triangular holes, with varying degrees of curvature at the corners, and with varying amounts of compact reinforcement on the boundary, have been computed for each of three loading cases. Poisson's ratio was assumed to be 1/3.

The Model for Calculating Elastic Modulus and Poisson's Ratio of Coal Body

2013 ◽  
Vol 6 (1) ◽  
pp. 36-43 ◽  
Author(s):  
Ai Chi ◽  
Li Yuwei
Keyword(s):  
Elastic Modulus ◽  
Poisson’S Ratio ◽  
Fractured Rock ◽  
Rock Block ◽  
Poisson's Ratio ◽  
Linear Elastic ◽  
Study Results ◽  
The Face ◽  
Block Face ◽  
Coal Rock

Coal body is a type of fractured rock mass in which lots of cleat fractures developed. Its mechanical properties vary with the parametric variation of coal rock block, face cleat and butt cleat. Based on the linear elastic theory and displacement equivalent principle and simplifying the face cleat and butt cleat as multi-bank penetrating and intermittent cracks, the model was established to calculate the elastic modulus and Poisson's ratio of coal body combined with cleat. By analyzing the model, it also obtained the influence of the parameter variation of coal rock block, face cleat and butt cleat on the elastic modulus and Poisson's ratio of the coal body. Study results showed that the connectivity rate of butt cleat and the distance between face cleats had a weak influence on elastic modulus of coal body. When the inclination of face cleat was 90°, the elastic modulus of coal body reached the maximal value and it equaled to the elastic modulus of coal rock block. When the inclination of face cleat was 0°, the elastic modulus of coal body was exclusively dependent on the elastic modulus of coal rock block, the normal stiffness of face cleat and the distance between them. When the distance between butt cleats or the connectivity rate of butt cleat was fixed, the Poisson's ratio of the coal body initially increased and then decreased with increasing of the face cleat inclination.

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