Online structural integrity monitoring of high-performance composite rocket motor casing

Srivastava, Lokesh; Lanka, Krishnanand; Nath, N. Kishore; Hirwani, Chetan Kumar; Babu, M.R.M.

doi:10.1016/j.matpr.2022.03.230

Cited by 4 publications

(3 citation statements)

References 3 publications

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“…In this study, finite element analysis was used to predict the interface failure behavior of composite laminates. Srivastava et al (2022b) connected the microscale, mesoscale, and macroscale models and used RVE with periodic boundary conditions to establish a multiscale mechanical model of CFRPs and calculated the homogenized modulus of elasticity and Poisson's ratio for the whole structure, and the numerical calculation results were in general agreement with the experimental data. However, to the authors' knowledge most of the current research on CFRPs has only explored one direction in the fiber lay-up process, macroscale failure behavior, and fine structure damage, and has not combined the fiber winding and lay-up process to provide a full chain integrity analysis of CRMCs from macroscale strength to fine structure.…”

Section: Introductionmentioning

confidence: 75%

“…CRMCs are usually made using wet fiber winding technology with T700 carbon fibers and an epoxy resin reinforced system, offering a light weight, high strength, and fatigue resistance superior to conventional metals (Srivastava et al, 2022b;Meyer et al, 2022;Zhang et al, 2022). Existing studies have shown that the physical and mechanical properties and overall reliability of CMRCs are influenced by the thickness of the fiber winding layer, the fiber winding angle, the lay-up sequence, and the fiber winding process (Park and Sakai, 2020;Zaami et al, 2020;Zu et al, 2020;Hu et al, 2021;Błachut et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

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Multiscale analyses of the damage of composite rocket motor cases

Zai

Hui²,

Cao

2023

Front. Mater.

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As one of the key components of solid rocket motors (SRMs) and launch vehicles (LVs), the deformation and damage of the composite rocket motor case (CRMC) can directly affect the effectiveness of the SRMs. Therefore, it is particularly important to analyze the damage failure of composite cases. As the analysis remains complex due to the different failure modes of composites at different scales, this paper applies multiscale analysis methods to CRMC damage. A multiscale mechanical model of CRMC is established, and data transfer between the microscale, mesoscale, and macroscale models is achieved using submodel techniques. In this paper, CRMC was finely modeled, and the thickness and carbon fiber angle of each fiber winding layer were accurately described. Additionally, the results of hydrostatic tests and numerical calculations were compared to verify the validity of the modeling method. The stress levels of the material at macroscale, mesoscale, and microscale scales were obtained through numerical calculations, and the microscale damage failure behavior of the material under the internal pressure load of the composite shell was predicted by combining the strength assessment criterion.

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Section: Introductionmentioning

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Multiscale analyses of the damage of composite rocket motor cases

Zai

Hui²,

Cao

2023

Front. Mater.

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“…The acoustic emission technique has been explored for implementation in composite structures by many industries, including aerospace [ 22 ], energy (wind turbine blades) [ 23 ], liquid hydrogen tanks [ 24 ], rocket motor casings [ 25 ], and automotive [ 26 ]. The approach is beneficial for the industry; however, the anisotropy within the composite poses a challenge with detecting failure events as the wave speed could differ based on the fibre direction, as will be discussed later.…”

Section: Acoustic Emission (Ae)mentioning

confidence: 99%

A Review on Acoustic Emission Testing for Structural Health Monitoring of Polymer-Based Composites

Ghadarah,

Ayre

2023

Sensors

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Acoustic emission (AE) has received increased interest as a structural health monitoring (SHM) technique for various materials, including laminated polymer composites. Piezoelectric sensors, including PZT (piezoelectric ceramic) and PVDF (piezoelectric polymer), can monitor AE in materials. The thickness of the piezoelectric sensors (as low as 28 µm—PVDF) allows embedding the sensors within the laminated composite, creating a smart material. Incorporating piezoelectric sensors within composites has several benefits but presents numerous difficulties and challenges. This paper provides an overview of acoustic emission testing, concluding with a discussion on embedding piezoelectric AE sensors within fibre-polymer composites. Various aspects are covered, including the underlying AE principles in fibre-based composites, factors that influence the reliability and accuracy of AE measurements, methods to artificially induce acoustic emission, and the correlation between AE events and damage in polymer composites.

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Interface debonding monitoring of solid rocket motor based on femtosecond grating array

2023

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During the whole life cycle of solid rocket motor (SRM), shell damage and propellant interface debonding will occur, which will destroy the structural integrity of SRM. Therefore, it is necessary to monitor the SRM health status, and the existing nondestructive testing technology and the designed optical fiber sensor cannot meet the monitoring requirements. In order to solve this problem, this paper uses femtosecond laser direct writing technology to write high contrast short femtosecond grating array. A new packaging method is proposed to enable the sensor array to measure 9000 με. It solves the grating chirp phenomenon caused by stress concentration in the SRM, and breaks through the key technology of fiber optic sensor implantation in the SRM. The shell pressure test and strain monitoring inside the SRM during long-term storage are realized. For the first time, the experiments of tearing and shearing specimens were simulated. Compared with the results of computed tomography, it proves the accuracy and progressiveness of implantable optical fiber sensing technology. Combined with theory and experiment, the problem of SRM life cycle health monitoring is solved.

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Online structural integrity monitoring of high-performance composite rocket motor casing

Cited by 4 publications

References 3 publications

Multiscale analyses of the damage of composite rocket motor cases

Multiscale analyses of the damage of composite rocket motor cases

A Review on Acoustic Emission Testing for Structural Health Monitoring of Polymer-Based Composites

Interface debonding monitoring of solid rocket motor based on femtosecond grating array

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