Crack Approaching a Hole.
WASHINGTON UNIV SEATTLE DEPT OF MECHANICAL ENGINEERING
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Effects of region of stress concentration ahead of a running crack in Homalite-100 sheets with a centrally located hole were studied by dynamic photoelasticity. Mode I dynamic stress intensity factors and corresponding dynamic strain energy release rates and crack velocities as well as the corresponding Modes I and II static stress intensity factors, static strain energy release rates and strain energy density factors were determined. Author Modified Abstract