Table C-22. HydrostaHc Test Data for Nominal 3.33-Inch (D;) -5.00-Inch (Dq) 

 Flat Acrylic Windows, Test Specimens 106 - 1 10 



(Sealed with grease; 



radial c 



earance 0.005 to 0.010 inch 



; nominal 



Djj/D; ratio 1.5) 





Parameter 



Specimen Number 



Value 





















106 



107 



108 



109 



110 



Max 



Avg 



Min 



Thickness (in.) 



1.109 



1.131 



1.132 



1.131 



1.127 



1.132 



1.126 



1.109 



D (actual, in.) 



4.986 



4.983 



4.984 



4.983 



4.986 



4.986 



4.984 



4.983 



Temperature (°F) 



65 



69 



68 



68 



69 



69 



68 



65 



t/Dj Ratio (actual) 



0.333 



0.339 



0.340 



0.339 



0.338 



0.340 



0.338 



0.333 



Pressurization Rate (psi/min) 



710 



633 



664 



655 



672 



710 



669 



633 



Pressure (psi) 



Axial D 



isplacem« 



snt of Center Point 



on Window's Low-Pressure Face (in.) 



500 



0.001 



0.002 



0.002 



0.001 



0.001 



0.002 



0.001 



0.001 



1,000 



0.011 



0.002 



0.010 



0.001 



0.020 



0.020 



0.009 



0.001 



1,500 



0.012 



0.008 



0.018 



0.010 



0.020 



0.020 



0.016 



0.008 



2,000 



0.021 



0.013 



0.027 



0.019 



0.020 



0.027 



0.020 



0.013 



2,500 



0.030 



0.018 



0.034 



0.026 



0.033 



0.034 



0.028 



0.018 



3,000 



0.039 



0.027 



0.042 



0.032 



0.045 



0.045 



0.037 



0.027 



3,500 



0.048 



0.033 



0.047 



0.036 



.0.045 



0.048 



0.042 



0.033 



4,000 



0.056 



0.043 



0.054 



0.048 



0.056 



0.056 



0.051 



0.043 



4,500 



0.064 



0.050 



0.059 



0.059 



0.095 



0.095 



0.065 



0.050 



5,000 



0.074 



0.060 



0.067 



0.068 



0.097 



0.097 



0.075 



0.066 



5,500 



0.083 



0.067 



0.114 



0.070 



0.113 



0.114 



0.089 



0.067 



6,000 



0.091 



0.109 



0.128 



0.115 



0.128 



0.128 



0.114 



0.091 



6,500 



0.099 



0.142 



0.136 



0.131 



0.142 



0.142 



0.130 



0.099 



7,000 



0.130 



0.176 



0.255 



0.292 



0.155 



0.292 



0.201 



0.130 



7,500 



0.489 



0.386 



0.336 



0.447 



ly 



0.489 



0.415 



0.336 



8,000 



0.572 





0.456 













Displacement at Failure (in.) 



0.782 



0.610 



0.456 



0.536 





0.782 



0.596 



0.456 



Pressure at Failure (psi) 



8,300 



7,825 



8,025 



7,650 



8,450 



8,450 



8,050 



7,650 



_!/ Deflection wire disengaged suddenly. 

 Note: Cracking at about 5,000 psi and 7,000 psi. 



70 



