Considerations concerning the service life, handling and storage of double base solid propellant rocket motors

Evans, Gary R.; Gordon, Sanford

doi:10.2514/6.1972-1086

Cited by 3 publications

(5 citation statements)

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“…This can be divided into: i) safe storage life and ii) safe use life. The first determined by chemical reactions, whilst the second is determined by a more complex physico-mechanical interrelationship (1)(2)(3)(4).…”

Section: Introductionmentioning

confidence: 99%

Design Qualification of a Single-Grain Rocket Motor for Shelf Life Extension Program of Multi-Grain Rocket Motor

Sammour

Mostafa

2007

International Conference on Aerospace Sciences and Aviation Tec

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A single grain rocket motor was designed to be used in a shelf life assessment and extension program for a solid double-based propellant multigrain rocket motor. The qualification of the single-grain rocket motor has been performed through several static firings to measure the different ballistic characteristics at different temperatures. The purpose of such qualification firings was to approve the suitability of the design of the single-grain rocket motor to give comparable ballistic performance to the multi-grain rocket motor, which should match the original specifications of such motors.

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Section: Introductionmentioning

confidence: 99%

Design Qualification of a Single-Grain Rocket Motor for Shelf Life Extension Program of Multi-Grain Rocket Motor

Sammour

Mostafa

2007

International Conference on Aerospace Sciences and Aviation Tec

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“…For solid rocket motors, the assessment of life is comprised of two inter-related aspects. These are the safe shelf-life and the safe and correct functioning life [26]. The first is limited by propellant stability and ingredient compatibility and so is usually attributed to chemical reactions, but in some cases can arise due to physical processes such as annealing which results in a change in shape or slump.…”

Section: Introductionmentioning

confidence: 99%

“…Other processes that affect the ballistic properties include the degradation of nitrocellulose (NC), migration of NG and loss of plasticisers by volatilisation. Chemical or physical changes in the condition of materials known as ballistic modifiers, which historically have been lead salts, that induce plateau burning can also be critical [26]. Platonisation is the phenomena of the independence of the solid rocket motor burning rate to pressure and is described as a period of flat burning or pressure insensitivity [29].…”

Section: Introductionmentioning

confidence: 99%

“…The ballistic modifiers can be affected by reactions such as nitration and hydrolysis resulting in significant changes in the burning rate and so the ballistic performance of the propellant [26,30]. The causes of ballistic changes are not always evident because there can be complex chemical reactions between the ballistic modifiers and other constituents in the propellant [23].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, where the propellant ballistics are sensitive to humidity then life assessment becomes difficult [26]. In simpler composite propellants, the hydrolysis of the ballistic modifier with possible further reactions with propellant ingredients had not been routinely reported owing to the general low chemical reactivity of the systems [23].…”

Section: Introductionmentioning

confidence: 99%

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A review on the effect of ageing on the ballistic properties of solid gun and rocket propellants

Pettifer,

Tod

2024

Propellants Explo Pyrotec

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This review covers the effect of ageing on solid gun and rocket propellants in terms of their ballistic properties. A brief overview of the types of methods, which can be used to determine such parameters, is provided and the literature is described in terms of broad motivation areas for the research. It has been demonstrated that understanding the effects and outputs of propellants, and how these might be affected by ageing, remains an important area of research in the field of energetic materials.

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Stabilizer reactions in cast double base rocket propellants. Part I: HPLC Determination of Stabilizers and their derivatives in a propellant containing the stabilizer mixture para‐nitro‐N‐methylaniline and 2‐nitrodiphenylamine aged at 80°C and 90°C

Bellerby

Sammour

1991

Propellants Explo Pyrotec

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Reverse phase high performance liquid chromatography (HPLC) employing an acctonitrile/methanol/water (45/10/45) mobile phase has been used to separate and quantitate the stabilizaers para‐nitro‐N‐methylaniline, (pNMA) and 2‐nitrodiphenylamine, (2NDPA) and their derivatives in a mixed‐stabilizer cast double hase rocket propellant composition undergiong acceterated aging at 80°C adn 90°C. Quantitative measurements show that pNMA is converted almost cntirely into N‐nitroso‐pNMA during the carly stages of aging and that this derivative persists for the remainder of the aging period. 2NDPA, on the other hand, reacts more slowly to give both N‐nitroso and C‐nitro derivatives.

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Considerations concerning the service life, handling and storage of double base solid propellant rocket motors

Cited by 3 publications

References 0 publications

Design Qualification of a Single-Grain Rocket Motor for Shelf Life Extension Program of Multi-Grain Rocket Motor

Design Qualification of a Single-Grain Rocket Motor for Shelf Life Extension Program of Multi-Grain Rocket Motor

A review on the effect of ageing on the ballistic properties of solid gun and rocket propellants

Stabilizer reactions in cast double base rocket propellants. Part I: HPLC Determination of Stabilizers and their derivatives in a propellant containing the stabilizer mixture para‐nitro‐N‐methylaniline and 2‐nitrodiphenylamine aged at 80°C and 90°C

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