Abstract
Presented in Part I is a shock-tube testing device for assessing the dynamic crack initiation characteristics. Data were found to obtain the critical dynamic stress intensity factor. Part II of this work is concerned with the finite element dynamic stress analysis to assist the interpretation of the experimental data for a center cracked PMMA specimen. Results are compared with the corresponding static data and show that they are not comparable with the stress intensity factor interpretation because of the dynamic loading rate effect.
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