Table B-1. Extrusions of Some Flat Disk Windows Measured 

 After Pressurization 











% of Group 



Specimen 

 No. 



tJy 



t/D| Ratio 



Measured=v 

 Set (in.) 



Average 

 Critical 

 Pressure 



141 



0.125 



0.083 



0.000 



70 



142 



0.248 



0.165 



0.000 



70 



143 



0.355 



0.237 



0.000 



68 



144 



0.497 



0.331 



0.001 



70 



145 



0.613 



0.409 



0.002 



70 



146 



0.735 



0.490 



0.026 



98 



147 



0.735 



0.490 



0.002 



67-3/ 



148 



0.857 



0.572 



0.011 



87 



149 



0.982 



0.655 



0.024 



92 



150 



0.983 



0.655 



0.029 



85 



151 



0.121 



0.036 



0.000 



70 



152 



0.349 



0.102 



0.000 



70 



153 



0.607 



0.182 



0.000 



65 



154 



0.848 



0.254 



0.000 



70 



155 



1.130 



0.339 



0.004 



70 



156 



1.452 



0.436 



0.003 



70 



157 



2.000 



0.600 



0.004 



68 



158 



1.991 



0.598 



0.034 



99 



159 



2.008 



0.602 



0.037 



98 



160 



0.233 



0.058 



0.000 



64 



161 



0.455 



0.107 



0.000 



63 



162 



0.968 



0.242 



0.000 



59 



163 



1.987 



0.496 



0.002 



55 



J/ Thickness measured prior to pressurization. 

 2j Measured 7 days after pressurization. 

 Zj See Figure B-26. 



Note: The maximum pressure was immediately relieved by either (a) bleeding 

 pressurized fluid from the vessel or (b) the development of leaks around 

 the window caused by deformation of the window under pressure. 



38 



