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      H-13 

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Presentation on theme: "      H-13 "— Presentation transcript:

1       H-13 

2          

3        

4       

5        

6          

7            

8           

9            

10              H-13 Dip Tank Specimen 2” each side 7” All corners square +.003” to -.003” All corners have.010” radius

11                    H-13 Dip Tank Specimen 2” each side 7” All corners square +.003” to -.003” All corners have.010” radius    

12         

13                    

14  H-13 Dip Tank Specimen 2” each side All corners square +.003” to -.003” All corners have.010” radius             3.5” 1.0” Side 7 Side 5 Side 1 1”.5” Side 3

15  All but 4 measurements indicate compression

16  Compressive Stress turns to Tensile

17  Tensile stress values reduced

18  Tensile stress again increasing

19  Tensile stress approaching values seen at 10 cycles

20  Tensile stress continuing to increase

21  Tensile stresses at highest levels

22  Tensile stress drop off again – by larger amount

23 

24 

25 

26 

27   Stress v/s Cycles Normal Stress v/s Cycles Logarithmic (cannot be zero)

28  ?          

29               

30          

31           

32  H-13 


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