PSI - Issue 16

Oleksiy Nemchuk et al. / Procedia Structural Integrity 16 (2019) 245–251 Oleksiy Nemchuk et al. / Structural Integrity Procedia 00 (2019) 000 – 000

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3. Results and discussion

The results of both experimental evaluation and calculation of stresses range Δ  e on different units of the crane under its maximum service loading are presented in Table 1. It can be seen that calculations are in a good agreement with experimental data. This allows the further analysis of in-service loading effect on the material degradation to be based on the calculated values of Δ  e .

Table 1. Values of Δ  e for different crane units

Δ  e , МPа

Steel fragment

Crane unit

Strain gauge

Calculation

1 2 3 4 5 6 7 8 9

144 114

130 110

Jib

46 51 47

48 55 45 50

Boom

Movable counterweight

– –

120 145

Right column wall

142

–

70

Back column wall

10

94

100

Fig. 2. Indication of the tested crane fragments.