2009
DOI: 10.2514/1.34227
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Fracture Mechanics of Composite Solid Rocket Propellant Grains: Material Testing

Abstract: Following a detailed literature survey on the fracture-mechanics properties of solid rocket propellants, this paper reports on an innovative set of fracture tests performed on a composite solid propellant based on ammonium perchlorate hydroxyl-terminated polybutadiene. After a short summary on standard linear–viscoelastic mechanical characterization, results on both linear–elastic fracture-mechanics (characterized by the fracture toughness KIC) and nonlinear fracture-mechanics (characterized by GF) tests are r… Show more

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Cited by 48 publications
(30 citation statements)
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“…In the past decades, a considerable amount of work has been done to investigate the properties of solid propellant under various loading conditions . However, there is still limited information available on the mechanical properties and fracture mechanisms of solid propellant at low temperatures and high strain rates.…”
Section: Introductionmentioning
confidence: 99%
“…In the past decades, a considerable amount of work has been done to investigate the properties of solid propellant under various loading conditions . However, there is still limited information available on the mechanical properties and fracture mechanisms of solid propellant at low temperatures and high strain rates.…”
Section: Introductionmentioning
confidence: 99%
“…Upon reaction of the initiator with the coinitiator, an intermediate complex is formed which then goes on to react with the monomer unit. The more of the CuCl2 percentage is the more of cation source and the more of opining the aziridine ring and the lower of aziridine content which illustrated in table (2) and figure (1&2).…”
Section: Results Of the Aziridine Content And The Refractive Indexmentioning
confidence: 97%
“…The lines at varioust emperatures are approximately parallel. To ughness data can be correlated as conventional failure properties using the temperature reduced strain rate [16].T ests at 482 www.pep.wiley-vch.de different temperatures ands train rates with the same a T ·ė value have producede qualf racture toughness. Am aster curve for the toughness is thus obtained ( Figure 7c).…”
Section: Master Curve For Dynamic Fracture Toughnessmentioning
confidence: 99%