Rebound resilience

	DIN 53512
Area	Rubber and elastomers
title	Testing of rubber and elastomers - Determination of rebound elasticity (Schob pendulum)
Latest edition	2000-04
ISO	-

Measuring device for determining the rebound resilience. On the right the extended hammer, on the left the buttons for selecting the sequence and the display for individual values ​​and statistics

Detailed view: clamped test plate

The determination of the rebound resilience according to DIN 53512 is used to assess the elasticity behavior of elastomers in the event of impact stress. ISO 4662 applies here to rubber .

A defined pendulum hammer (hammer fin) strikes a test body . The hammer fin is hemispherical and has a diameter of 15 mm. The work capacity of the pendulum is 0.5 J. The rebound resilience is calculated based on the deflection of the hammer. With a release angle of 90 ° and a pendulum length of 200 mm, the impact speed is 1.98 ms  ⁻¹ .

${\displaystyle R=100{\frac {h_{\rm {R}}}{h_{0}}}}$

• R  : rebound resilience
• h _R : rebound height
• h ₀ : starting height

Web links

• Table of contents of ISO 4662: 2009-08 at Beuth-Verlag (English)

Individual evidence

1. ^ Fritz Röthemeyer, Franz Sommer: Kautschuktechnologie , Carl Hanser Verlag Munich Vienna, 2nd edition, 2006, pp. 505–506, ISBN 978-3-446-40480-9 .