







<?1 



1 



1 , 



] 











































DO 

 D 



D 









































sJ 









































. □ 



































a 











SYNTHETIC DAMAGE 

 TREND 































* 



a 

























QO 



LEGEND 



TA 













^ 



k: 





BSERVEDDA 







































L \. 

























































































1 





























SPECTRAL STABILITY NUMBER, Ns- 



Figure 14. Comparison of data and the synthetic damage trends 

 generated by the stability model for subset 5 

























































































V 3 



aiL 



-*i 



ft 





























? n 



















N 



kj 



< 



SYN 



r HETI 

 TR 



CDAK 

 -.ND 



1AGE 































3 □! 



\ 





































D 













































LEGEND 



1 



SERVED DA 



rA 



































































































































































SPECTRAL STABILITY NUMBER, Ni. 



Figure 15. Comparison of data and the synthetic damage trends 

 generated by the stability model for subset 7 



27 



