Rebound Property in Low Velocity Impact of Two Equivalent Balls

Abstract

The present study focuses on an impact phenomenon of two spheres and its rebound property. The collision of two spheres is a fundamental problem with impact phenomenon. The coefficient of restitution characterizes the property of impact phenomenon and has been estimated in general by experiment. In addition, it has been tried to estimate the coefficient by analytical and numerical methods. Considering body deformation, the body is deflected rapidly in collision and the strain rate occurred in the body is significantly high. It is well known the yield stress of the specific industrial material depends on the strain rate. However, it has not been proved the relationship between the coefficient of restitution and the strain rate in details yet. The present paper discusses the coefficient of restitution in low velocity impact of two equivalent balls. The impact experiments were conducted for the balls with different diameters by a pendulum impact apparatus. And the balls are numerically analyzed based on the finite element method considering the dependence of yield stress on strain rate as the material property of the balls. In conclusion, the strain rate decreases with the increment of the ball diameter and, it causes the coefficient of restitution to decrease.

Authors and Affiliations

Eijiro Inamura, Hirofumi Minamoto, Shozo Kawamura

Keywords

Related Articles

Solving engineering problems using the finite difference method applied to Scilab

This paper describes the procedures adopted, and the results found, in the numerical resolution of a problem of plate flexion, through the finite difference method. The two-dimensional problem was proposed as being a pla...

Consumer-Based Brand Equity and Firm Risk

Investors And Managers Evaluate Potential Investments In Terms Of Risk And Return. Research Has Focused On Linking Marketing Activities And Resource Deployments With Returns But Has Largely Neglected Marketing’s Role In...

An Overview of Sustainable Energy for A Growing Indian Economy

There is a whole gamut of challenging areas in the power sector that India needs to address on priority in order to meet its growth targets and the acute population growth, which will exceed 10 billion by the year 2050....

Design & Implementation of 16-bit Carry Skip Adder using Reversible Computing

Nowadays, reversible circuits are receiving immense attention because there is no loss of information bit during processing of data. These reversible circuits are better in terms of quantum cost and power consumption. Th...

Intelligent controlled UPQC for power quality improvement of grid supply connected with non-linear load

The issue of power quality has gained popularity in the recent years because of the widespread use of power electronic devices, larger inter-connected load networks and widespread use of non-conventional source of electr...

Download PDF file
  • EP ID EP391240
  • DOI 10.9790/9622-0705040512.
  • Views 128
  • Downloads 0

How To Cite

Eijiro Inamura, Hirofumi Minamoto, Shozo Kawamura (2017). Rebound Property in Low Velocity Impact of Two Equivalent Balls. International Journal of engineering Research and Applications, 7(5), 5-12. https://europub.co.uk/articles/-A-391240