Section l. 
aie 
1425 
BOUNDARY OF DISTURBANCE 
FOR NON-LINEAR REFLECTION OF UNDERWATER 
SHOCKWAVES AT A FREE SURFACE 
CONTENTS 
Introduction 
Basic theoretical relations for shockwaves 
in water 
Experimental pressure distance relations for 
explosion shockwaves in water 
The critical angle 
The critical distance 
The range of peak pressure distortion 
Comparison with experimental results 
The relation to the critical angle for reflection 
at a rigid surface 
