Issue 60

R. Karimihaghighi et alii, Frattura ed Integrità Strutturale, 60 (2022) 187-212; DOI: 10.3221/IGF-ESIS.60.14

 0.5 C

 0.385 P SE and

min t

R :

b) Longitudinal joints with circumferential stress when

        . C R t MAWP SE ln R

(A2)

 0.5 L

c) Circumferential joints with longitudinal stress when  1.25 P SE and

min t

R :





   2 0.4 sl SE t t R t t 

(A3)

L



MAWP



sl

 0.5 C

 0.385 P SE and

min t

R (circumferential joints):

d) Longitudinal stress when

  

   

2





     sl R t t

(A4)

L

 MAWP SE



1

 

 

R

e) Final Values:

(A5)

   min

 

C

L

MAWP

, MAWP MAWP

 Spherical Pressure Vessel Shells [5]:

 0.665 P SE and

 0.356 min t R

a)

SEt

2

(A6)



MAWP

 R t 0.2

 0.665 P SE or

 0.356 min t R

a)



1

   

   

   

3

3

 R t

 R t

(A7)

  

  

  

  

 MAWP SE 2





1

2

R

R

 Conical Pressure Vessel Shells [5]: a) Longitudinal joints with Circumferential Stress.  and D are illustrated in Figure A1.         2 1.2 C SEtCos MAWP D tcos

(A8)

b) Circumferential joints with longitudinal stress



  

  SE t t Cos 2   0.8 D t t cos sl

    

L

(A9)



MAWP

sl

c) Final Value

(A10)

   min

 

C

L

MAWP

, MAWP MAWP

201