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http://dx.doi.org/10.6108/KSPE.2012.16.5.067

A Study on Failure Assessment Diagrams for a Solid Propellant  

Ha, Jae-Seok (충남대학교 기계설계공학과)
Kim, Jae-Hoon (충남대학교 기계설계공학과)
Yang, Ho-Young (충남대학교 기계설계공학과)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.16, no.5, 2012 , pp. 67-73 More about this Journal
Abstract
Failure mechanisms for a solid propellant were discussed, and the stip-yield and the inherent flaw models were applied to them. Then, failure assessment diagram methods were investigated by means of modified two models. Fracture toughness tests using CCT(center-cracked tension) specimens made of a solid propellant were conducted to generate the failure assessment diagrams. The failure assessment diagram of the inherent flaw model was normalized in order to compare with that of the modified strip-yield model. From the comparison of two failure assessment diagrams, it was found that the failure assessment diagram of the modified inherent flaw model more conservatively assesses the failure than that of the modified strip-yield model.
Keywords
Failure Assessment Diagram; Solid Propellant; Strip-yield Model; Inherent Flaw Model;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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