Acousto-ultrasonic technique applied to filled-polymer damage assessment

Tang, B.; Liu, C. T.; Henneke, E. G.

doi:10.2514/3.26697

Cited by 8 publications

(1 citation statement)

References 5 publications

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“…At present, the experimental methods used for the identification for powder debonding of solid propellant include scanning electron microscopy (SEM), optical microscopy (OM), micro-CT (MCT), ultrasonic measurement (UT) etc. (Knollman and Yee, 1988; Liu, 2007; Nevière, 2006; Miller, 2019; Miqoi et al., 2021; Shekhar and Sahasrabudhe, 2011; Tang et al., 1995). However, these methods can’t consider the analysis of microscopic characteristics, quantitative characterization and real-time dynamic detection of damage simultaneously.…”

Section: Introductionmentioning

confidence: 99%

A coda wave interferometry to characterize and evaluate the powder debonding damage of solid propellant: Experimental investigation and discrete element simulation

Pan,

Yang,

et al. 2023

International Journal of Damage Mechanics

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The debonding of solid filler powder and binder matrix is the main form of damage for composite solid propellant. This study proposes a coda wave interference (CWI) analysis method to quantitatively characterize and evaluate the internal powder debonding damage of composite solid propellant by experiment and discrete element simulation. In order to verify the validity of numerical simulation, the discrete element method (DEM) samples to simulate the powder debonding damage of solid propellant are established, and the DEM simulation and micro-CT scanning experiment are carried out. The micro-experimental and DEM results prove the efficiency and accuracy of DEM samples in modeling the damage behaviors of solid propellant specimens. Furthermore, in order to quantitatively characterize and evaluate powder debonding damage of solid propellant, using CWI method to analyze the damage states of solid propellants in the experiment and DEM simulation of tension. Two coda evaluation parameters based on different damage states are proposed, and the relationship curves of coda evaluation parameters and tensile strain are obtained. Though the analysis of the curve results of experiment and DEM simulation, the validity of CWI is demonstrated. The coda evaluation parameters can quantitatively identify and judge the accumulation process of initial damage, the appearance of micro holes and the failure point of propellant.

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Section: Introductionmentioning

confidence: 99%

A coda wave interferometry to characterize and evaluate the powder debonding damage of solid propellant: Experimental investigation and discrete element simulation

Pan,

Yang,

et al. 2023

International Journal of Damage Mechanics

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Monitoring Microstructural Evolution, Crack Formation, and Damage Characteristics near Crack Tip in a Highly Filled Elastomer-Using Digital Radiography X-ray Techniques

Liu

2006

Exp Mech

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In this study, the change of microstructure, the formation of cracks, and the change of damage characteristics near the tip of a propagating crack in a highly filled elastomer containing hard particles embedded in a rubbery matrix were investigated using digital radiography X-ray techniques. Experimental findings reveal that the degree of inhomogeneity of the material's microstructure and the number of nonpropagating cracks increase as the applied strain is increased. Also, the damage characteristics near the crack tip are highly dependent on the loading history.

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Analysis of acousto-ultrasonic characteristics for contact-type transducers coupled to composite laminated plates

Liu

Kitipornchai

Veidt

2001

International Journal of Mechanical Sciences

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Acousto-ultrasonic technique applied to filled-polymer damage assessment

Cited by 8 publications

References 5 publications

A coda wave interferometry to characterize and evaluate the powder debonding damage of solid propellant: Experimental investigation and discrete element simulation

A coda wave interferometry to characterize and evaluate the powder debonding damage of solid propellant: Experimental investigation and discrete element simulation

Monitoring Microstructural Evolution, Crack Formation, and Damage Characteristics near Crack Tip in a Highly Filled Elastomer-Using Digital Radiography X-ray Techniques

Analysis of acousto-ultrasonic characteristics for contact-type transducers coupled to composite laminated plates

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