Abstract

N. Bencherif^1,2 and M. Benhaliliba^1,2

DOI : http://dx.doi.org/10.13005/ojc/370208

Composite pipelines carboxyl presencethedamage bytwo defects, under the bending moment M = 1rd ,and various internal pressure (P = 40bar, P = 60bar, P = 80bar) is studied in this work . Using the HASHIN criterion, a numerical prediction through the calculation code ABAQUS took the objective of evaluating the damage by interaction effect between two defects. The results presented by evaluative curves of correlation between the moment to the damage and the parameters of orientation and location of the defects. The interaction effect of defects on damage was conditioned by their locations along the pipeline surface. The results obtained show a strong influence of the defects on the level and the mode of failure as well as their response until the damage.

Bending moment; Composite pipeline; Damage; Hashin criteria; Pipeline surface; Shell element

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