Determination of the composition and density of polymer composite materials in details and constructions by nondestructive methods

Mishurov, K.S.; Murashov, V. V.

doi:10.1134/s1995421216020155

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…The density of composite materials forms most of the physical basis of the method of characterizing the effects of mechanical properties and determining their positioning in composite materials [ 5 ]. SFCs have been studied to exhibit the same density before and after curing, making them suitable in aerospace applications [ 6 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Processing of Low-Density HGM-Filled Epoxy–Syntactic Foam Composites with High Specific Properties for Marine Applications

2023

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A solution casting approach is used to create hollow glass microsphere (HGM)-filled epoxy–syntactic foam composites (e–SFCs) by varying the concentrations of HGM in epoxy according to different particle sizes. Density analysis is used to investigate the impact of concentration and particle size regularity on the microstructure of e-SFCs. It was observed that e–SFCs filled with an HGM of uniform particle sizes exhibit a reduction in density with increasing HGM concentration, whereas e-SFCs filled with heterogeneous sizes of HGM exhibit closeness in density values regardless of HGM concentration. The variation in e–SFC density can be related to HGM packing efficiency within e–SFCs in terms of concentration and particle size regularity. The particle size with lowest true density of 0.5529 g/cm3, experimental density of 0.949 g/cm3 and tensile strength of 55.74 MPa resulted in e-SFCs with highest specific properties of 100.81 (MPa·g/cm3), with a 35.1% increase from the lowest value of 74.64 (MPa·g/cm3) at a true density of 0.7286 g/cm3, experimental density of 0.928 g/cm3 and tensile strength of 54.38 MPa. The e–SFCs’ theoretical density values were obtained. The variance in theoretical and experimental density values provides a thorough grasp of packing efficiency and inter-particle features.

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Section: Introductionmentioning

confidence: 99%

Processing of Low-Density HGM-Filled Epoxy–Syntactic Foam Composites with High Specific Properties for Marine Applications

2023

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“…For multilayer adhesive-bonded structures low-frequency acoustic methods are often used. They allow detecting gap areas of compounds in multilayered glued structures made of composites based on carbon, boron, glass, organic fibers [2][3][4][5]. However, zones with layers adhesion violation that do not have a gap filled with gas are not detected by low-frequency acoustic methods.…”

Section: Introductionmentioning

confidence: 99%

Thermal Method as a Non-Destructive Testing of Thin-Walled Parts

Kaledin

Budadin

Vyachkina

et al. 2019

MSF

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Non-destructive testing (NDT) of thin-walled parts is being considered. This technique is based on registration of changes in thermal fields created by sources on internal defects of the material. Mathematical model calculating surface temperatures of the part in each time-step has been built. The deduced system has been transformed into matrix format by the finite elements method. Solution has been found by the finite difference method. Actual tests has been conducted registering changes in surface temperature of the plate with symmetrical and asymmetrical internal source position. The model has been fine-tuned based on comparison of actual tests’ results with numerical calculations.

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Determining the Depth of Occurrence of Defects in Multilayer PCM Structures by Acoustic Methods Based on the Mechanical Impedance Value

Chertishchev

Бойчук

Dikov

et al. 2018

Russ J Nondestruct Test

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Determination of the composition and density of polymer composite materials in details and constructions by nondestructive methods

Cited by 5 publications

References 8 publications

Processing of Low-Density HGM-Filled Epoxy–Syntactic Foam Composites with High Specific Properties for Marine Applications

Processing of Low-Density HGM-Filled Epoxy–Syntactic Foam Composites with High Specific Properties for Marine Applications

Thermal Method as a Non-Destructive Testing of Thin-Walled Parts

Determining the Depth of Occurrence of Defects in Multilayer PCM Structures by Acoustic Methods Based on the Mechanical Impedance Value

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