Steel ball, restitution coefficient

Figure 2.18. Measurements of the restitution coefficient of a steel ball on blocks of various materials (from Goldsmith, 1960).

Example 2.4 A copper ball of 1 cm diameter normally collides with a stainless steel wall with an impact velocity of 0.5 m/s. Estimate the restitution coefficient using the elastic-plastic model. What is the rebound velocity of the ball The yield strength of copper is 2.5 x 108 N/m2. It can be assumed that the yield strength of the stainles steel is higher than that of copper. 

Figure 8. Predicted impact force as a function of impact velocity for different values of the coefficient of restitution (e) for Ml SiC/SiC and oxide/oxide composites impacted by 1.59mm-diameter steel ball projectiles.

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See also in sourсe #XX -- [ ]

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