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Abstract

The apparent hoop tensile strength of glass fiber-reinforced polyester pipes plays an important role during their design procedure. In some cases, glass fiber-reinforced polyester pipes industry used hydraulic failure pressure to obtain this value. In addition to the expensive and time-consuming characteristics of this experiment, it underestimates the apparent hoop tensile strength. A sequential failure modelling is developed to predict apparent hoop tensile strength modelling integrating classical lamination theory and progressive damage modelling. Developed modelling takes into account influence of incorporated sand layer in glass fiber-reinforced polyester pipe wall construction. Experimental study is conducted to validate developed technique. A very good agreement is observed between experimentally measured apparent hoop tensile strength of glass fiber-reinforced polyester pipes and predicted values employing sequential failure modelling.

Keywords

Composite pipes failure analysis experimental study progressive damage modeling sand filler

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