Filament wound composite over-wrapped tanks are considered for applications in solid rockets motor cases. An analytical procedure is developed, in form of a computer code (GENOA), to assess the durability and damage tolerance of pressurized tanks. The winding simulation calculates thickness and ply angle distributions and residual stresses resulting from the wrapping of the tanks. The durability evaluation predicts micro-crack formation, delamination initiation and progression, failure modes and burst (fracture) loads. Deterministic simulation resulted in burst pressures that are within 8.8% of the test. The pressurized tanks are also evaluated in presence of uncertainties in constituent stiffness and strength and manufacturing variables. Based on assumed scatter, the probability that the tank burst pressure lies within the test range is 27.5%. The sensitivity analysis indicated that fiber misalignment and ply thickness are the most influential variables that affect the burst pressure.


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    Title :

    Reliability Based Design of Composite Over-Wrapped Tanks


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE World Congress & Exhibition ; 2007



    Publication date :

    2007-04-16




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Reliability Based Design of Composite Over-Wrapped Tanks

    Abumeri, G. / Abdi, F. / Baker, M. et al. | British Library Conference Proceedings | 2007


    2007-01-1422 Reliability Based Design of Composite Over-Wrapped Tanks

    Abumeri, G. / Abdi, F. / Baker, M. et al. | British Library Conference Proceedings | 2007


    2007-01-1422 Reliability Based Design of Composite Over-Wrapped Tanks

    Abumeri, G. / Abdi, F. / Baker, M. et al. | British Library Conference Proceedings | 2007