PSI - Issue 5

Smail Sahnoun et al. / Procedia Structural Integrity 5 (2017) 1065–1071 Asseya El-amiri et al./ StructuralIntegrity Procedia 00 (2017) 000 – 000

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4

Fig.2.

Diagram illustrating the variation of the rust depth between the screw and the nut

a

b

Fig.3. (a) The temperature evolution with respect to the rust depth along the axis (A1A2) in the large bolt for three different diameters; (b) The temperature evolution with respect to the rust depth along the axis (A1A2) In the medium sized bolt for six different diameters

The model we propose is as follows:

2 . a T a T a   

P .

(2)

0

1

2

For the large bolt ,the coefficients a 0 , a 1 et a 2 are given by:

2 0 1,71. 3,24. a e e   

0,84

2 1687, 64. 3205,52. 831, 75 e e  

a

 

1

2

a

416163,86. e

790443,57. 204694, 66 e 

 



2

For the medium sized bolt, the coefficients a 0 , a 1 et a 2 are given by: