Comparative studies between charpy impact test and dynatup impact test

Document Type

Conference Proceeding

Publication Date

12-1-2005

Abstract

Fracture dynamics of various bimodal HDPEs were investigated based on the load-time history and impact energy recorded in a Dynatup impact tester. The crack propagation energy (A2) obtained from the Dynatup impact test showed a good correlation to the impact energy from the Charpy test. It is believed that A2, revealing the resistance to crack propagation after the crack has been initiated, reflects a closer relation to the genuine crack energy. Whether or not A2 is a better parameter than 'Charpy energy' for predicting rapid crack propagation (RCP) performance requires data support from S4 or full-scale test. Also, a crossover temperature (Tx), which is defined as the temperature where the crack initiation energy (A1) and the propagation energy (A2) intersects in a plot against temperature, is found to exhibit a good correlation with A2.

Identifier

33645015003 (Scopus)

Publication Title

Annual Technical Conference ANTEC Conference Proceedings

First Page

257

Last Page

263

Volume

8

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