Topic
Subtended angle
About: Subtended angle is a research topic. Over the lifetime, 144 publications have been published within this topic receiving 2073 citations.
Papers published on a yearly basis
Papers
TL;DR: Methods to measure the following properties of gray level corners: subtended angle, orientation, contrast, bluntness (or rounding of the apex), and boundary curvature (for cusps) are described.
356 citations
TL;DR: Traffic flow models that include human visual characteristics must consider the "dead zones" in response produced by thresholds of subtended angle change subtended angular velocity and the non-linear relationship between perceived relative velocity and actual relative velocity.
128 citations
TL;DR: A discrete singular convolution (DSC) free vibration analysis of conical panels is presented in this article, where the derivatives in both the governing equations and the boundary conditions are discretized by the method of DSC.
Abstract: A discrete singular convolution (DSC) free vibration analysis of conical panels is presented. Regularized Shannon's delta kernel (RSK) is selected as singular convolution to illustrate the present algorithm. In the proposed approach, the derivatives in both the governing equations and the boundary conditions are discretized by the method of DSC. Effects of boundary conditions, vertex and subtended angle on the frequencies of conical panel are investigated. The effect of the circumferential node number on the vibrational behaviour of the panel is also analysed. The obtained results are compared with those of other numerical methods. Numerical results indicate that the DSC is a simple and reliable method for vibration analysis of conical panels. Copyright © 2006 John Wiley & Sons, Ltd.
100 citations
TL;DR: In this paper, a new analytical solution is presented for spring-in of curved thermoset matrix composites taking into account the low shear stiffness of the material in the rubbery state before it is fully cured.
Abstract: A new analytical solution is presented for spring-in of curved thermoset matrix composites taking into account the low shear stiffness of the material in the rubbery state before it is fully cured. It is shown that shear-lag through the thickness can have a significant effect in reducing spring-in arising from thermal stresses and chemical shrinkage between gelation and vitrification. Results are presented in a nondimensional form that shows the influences of subtended angle, through-thickness shrinkage, the ratio of curved arc length to part thickness, and the ratio of in-plane modulus to rubbery interlaminar shear modulus, providing greater physical insight into the spring-in mechanism. The analysis predicts a significant effect of thickness on spring-in angle. This is verified by experimental measurements on cross-ply carbon-epoxy C-sections cured on a carbon fiber tool, confirming the validity of the new solution.
96 citations
TL;DR: The analytical expression for the solid angle for n-sided, regular polygon of area equal to that of the disc is given in this article. And the average solid angles subtended by circular discs from circular discs are calculated and given in tabular form for a range of disc sizes.
91 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2022 | 3 |
| 2021 | 2 |
| 2020 | 2 |
| 2019 | 3 |
| 2018 | 12 |
| 2017 | 7 |