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  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Development of Standards for Nondestructive Evaluation of Copvs Used in Aerospace Applications

Development of Standards for Nondestructive Evaluation of Copvs Used in Aerospace Applications

Waller, Jess M.
Saulsberry, Regor L.
Nasa Technical Reports Server (Ntrs)

Paperback

General Political Science

ISBN10: 1289020868
ISBN13: 9781289020866
Publisher: Bibliogov
Published: Jun 26 2013
Pages: 30
Weight: 0.16
Height: 0.06 Width: 7.44 Depth: 9.69
Language: English
Composite OverWrapped Pressure Vessels (COPVs) are currently accepted by NASA based on design and qualification requirements and generally not verified by NDE for the following reasons: (1) Manufactures and end users generally do not have experience and validated quantitative methods of detecting flaws and defects of concern (1-a) If detected, the flaws are not adequately quantified and it is unclear how they may contribute to degradation in mechanical response (1-b) Carbon-epoxy COPVs also extremely sensitive to impact damage and impacts may be below the visible detection threshold (2) If damage is detected, this generally results in rejection since the effect on mechanical response is generally not known (3) NDE response has not generally been fully characterized, probability of detection (POD) established, and processes validated for evaluation of vessel condition as manufactured and delivered.

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