PSI - Issue 42

D. Kosov et al. / Procedia Structural Integrity 42 (2022) 545–552 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

550

6

Fig. 4. Calculation scheme of a hollow cylindrical specimen with notch.

Table 3. Numerical results

Type of loading

Damage parameter ω i max (%)

Tension

1.55 2.47

Tension + Pressure

Tension + Pressure+ Torsion

5.41 (ω msx )

Compression

1.72

Compression + Pressure 0.98 Compression + Pressure+ Torsion 0.98

Fig. 5a shows the distribution of accumulated damage through the wall thickness in the zone of the notch root. For a quantitative analysis of the damage distribution, the damage parameter was normalized to the maximum value of damage parameter under specified combination of tension, internal pressure and torsion, which is 5.41%. It should also be noted that the same nature of damage accumulation is observed with combinations of Compression, Internal pressure and Compression, Internal pressure, Torsion.

Fig. 5. Distribution of the damage parameter over the specimen wall thickness.