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Development of Standards for Nondestructive Evaluation of Copvs Used in Aerospace Applications (en Inglés)
Nasa Technical Reports Server (Ntrs)
(Autor)
·
Jess M. Waller
(Autor)
·
Regor L. Saulsberry
(Autor)
·
Bibliogov
· Tapa Blanda
Development of Standards for Nondestructive Evaluation of Copvs Used in Aerospace Applications (en Inglés) - Nasa Technical Reports Server (Ntrs) ; Waller, Jess M. ; Saulsberry, Regor L.
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Reseña del libro "Development of Standards for Nondestructive Evaluation of Copvs Used in Aerospace Applications (en Inglés)"
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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