Roles of the Interphase Stiffness and Percolation on the Behavior of Solid Propellants

Toulemonde, Paul-Aymé; Diani, Julie; Pierre, Guillaume; Lacroix, Geneviève; Desgardin, Nancy

doi:10.1002/prep.201600062

Cited by 9 publications

(4 citation statements)

References 38 publications

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“…Micro scale experiment is to characterize the microstructure and composition of the propellant at the atomic and molecular levels, and quantitatively express the bonding performance and damage degree of the interface by the molecular arrangement, chemical bond type and number of the bonding interface in a certain state. At present, there are some literatures about the interfacial stiffness using atomic force microscopy [101]. However, there is no report on the interface observation experiment at the molecular level.…”

Section: Microscale Experimentsmentioning

confidence: 99%

Review on the Dewetting of the Particle‐Matrix Interface in Composite Solid Propellants

Zou

LI³

et al. 2023

Propellants Explo Pyrotec

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Dewetting is the main damage mode of composite solid propellants, and the research on the initiation mechanism and evolution process of dewetting damage is an important way to predict the mechanical properties and evaluate the life of propellants. In this paper, the experimental research and analytical methods of dewettingare reviewed at domestic and foreign from three dimensions: macro, meso and micro. On this basis, the reference solutions to the existing research problems are proposed, and the key research directions of interface dewetting in the future are pointed out. The analysis shows that the dewetting behavior of composite solid propellant is affected by multiple factors such as internal factors (par-ticles, matrix, bonding agent) and external factors (temperature and humidity, aging, strain rate, confining pressure). At present, the mechanism of dewetting is not clear, so it is urgent to conduct experimental analysis and numerical simulation research on the interface at the micro level to analyze the physical and chemical properties of the interface. On the meso scale, it is necessary to increase research in the dewetting theoretical model considering multi factor coupling, the mechanical property experiment of particlematrix interface, and the fine construction of meso scale simulation model. On the macro scale, the dynamic analysis method of propellant dewetting under multiple complex loading conditions will be the focus of future research.

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Section: Microscale Experimentsmentioning

confidence: 99%

Review on the Dewetting of the Particle‐Matrix Interface in Composite Solid Propellants

Zou

LI³

et al. 2023

Propellants Explo Pyrotec

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“…It scans the surface of a material with a very small probe (<10 nm) and records the three-dimensional morphology of the material surface based on the change in the interaction force. Toulemonde et al [92] observed the modulus in micro-scale by AFM and obtained the clearly edges of white filler particles, dark gray matrix, and light gray interphase. The Young's modulus evolution curve showed that the interphase modulus was about five times of that of the matrix (5 MPa).…”

Section: Micromorphological Analysismentioning

confidence: 99%

Research Progress of Bonding Agents and Their Performance Evaluation Methods

Gan

Zhang

Zhang³

et al. 2022

Molecules

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Bonding agents are an important type of additive that are used to increase the interfacial interaction in propellants. A suitable bonding agent can prevent the dewetting between the oxidant and binder, and thus effectively improve the mechanical properties of the propellant. In the current paper, the bonding mechanisms and research progress of different types of bonding agents such as alcohol amine bonding agents, borate ester bonding agents, aziridine bonding agents, hydantoin bonding agents, neutral polymer bonding agents, and so on, are reviewed and discussed. The evaluation methods of their bonding performances including molecular dynamic simulation, contact angle method, in situ loading SEM, characterization analysis, and mechanical analysis are summarized to provide design ideas and reference for future studies.

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“…The high volume fraction of particles [31], the nonlinear hyperelastic behavior of the elastomer matrix, the particle size [5,10,14,31] and the matrix/particles adhesion [11,14,15] give very specific tensile properties to solid propellants compared to other class of filled polymer matrix. For instance, it has been showed that damage by filler/matrix debonding has a very significant effect on the mechanical behavior of solid propellants [20,3,1,26] that is not fully understood despite recent studies [28,29].…”

Section: Introductionmentioning

confidence: 99%

Effects of small particles on the mechanical behavior and on the local damage of highly filled elastomers

et al. 2016

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The mechanical behavior and damage of highly filled elastomers such as propellants is studied experimentally. A model material made of a polyacrylate matrix filled with glass beads and energetic binders filled with ammonium perchlorate and HMX have been formulated. The focus is on materials containing micrometric size particles. The size of fillers was varied from a few microns to hundreds of microns in order to study the impact of the size of particles. The materials stress-strain responses and the volume changes during uniaxial tensile tests have been recorded. Microtomographic slices of strained samples have been obtained in order to look at the type of damage sustained by the acrylate/glass bead materials. It appears that in the presence of large particles, composites showing early prominent crack benefits from the addition of small particles, whereas composites showing well dispersed matrix/particle decohesion without large cracks show no change of behavior when small particles are added.

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Roles of the Interphase Stiffness and Percolation on the Behavior of Solid Propellants

Cited by 9 publications

References 38 publications

Review on the Dewetting of the Particle‐Matrix Interface in Composite Solid Propellants

Review on the Dewetting of the Particle‐Matrix Interface in Composite Solid Propellants

Research Progress of Bonding Agents and Their Performance Evaluation Methods

Effects of small particles on the mechanical behavior and on the local damage of highly filled elastomers

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