PSI - Issue 82

Victor Rizov et al. / Procedia Structural Integrity 82 (2026) 253–259 V. Rizov/ Structural Integrity Procedia 00 (2026) 000–000

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in longitudinal direction, it is important to investigate the influence of the delamination length on the SERR. Such investigation is carried-out and the results are illustrated by the diagram shown in Fig. 5.

Fig. 4. The SERR - time curve.

Fig. 5. The SERR - normalized delamination length curve.

The continuous growth of the SERR with increase of the normalized length of the delamination crack, , is caused by reduction of the values of the moduli of elasticity and the coefficient of viscosity along the column length. ! " " !