Experiment- and computation-based identification of mechanical properties of fiber reinforced polymer composites

Dumansky, A M; Alimov, Mukhamiat; Terekhin, A V

doi:10.1088/1742-6596/1158/2/022037

Cited by 10 publications

(6 citation statements)

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“…Geometrically, this means projecting the column of free terms as a result of the experiment onto the column space of the design matrix, which contains the data of the experiments performed. The method is described in detail in [7].…”

Section: Analysis Of Calculation Errorsmentioning

confidence: 99%

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Analysis of sensitivity of elastic characteristics of unidirectional carbon fiber specimens with thermoplastic matrix to loading rate at high temperature

Dumansky

Fomina²,

Alimov³

et al. 2023

E3S Web of Conf.

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The problem of assessing the sensitivity of unidirectional carbon fiber reinforced plastics to loading rate is considered. As a rule, when the loading rate changes, the stress-strain curves for unidirectional CFRP specimens under loading at different off-axis angles change due to the rheological properties and physical nonlinearity. An attempt is made to reveal the degree of anisotropy sensitivity of a unidirectional carbon fiber reinforced plastic with thermoplastic matrix at an elevated temperature in the range of changes in the loading rate by two orders of magnitude both in stress and in strain.

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Section: Analysis Of Calculation Errorsmentioning

confidence: 99%

“…The matrix 1 T T P I X X X X is a design matrix and makes it possible to perform a dispersion analysis of experimental and calculated data [7]. It is known that the vector of residuals is a centered random variable obeying the normal law.…”

Section: Analysis Of Calculation Errorsmentioning

confidence: 99%

Analysis of sensitivity of elastic characteristics of unidirectional carbon fiber specimens with thermoplastic matrix to loading rate at high temperature

Dumansky

Fomina²,

Alimov³

et al. 2023

E3S Web of Conf.

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“…Ïóñòü äëÿ êàaeäîãî ñëîÿ ñïðàâåäëèâû ñîîòíîøåíèÿ (10) (14). Òîãäà îáúåì ðàáîòû äëÿ îïðåäåëåíèÿ, íàïðèìåð, ïàðàìåòðîâ ïîëçó÷åñòè (18) äëÿ ïàêåòà â öåëîì ìîaeíî óìåíüøèòü, ïîëüçóÿñü çíà÷åíèÿìè ïðåäåëüíûõ äåôîðìàöèé, íàéäåííûìè èç ñèñòåìû óðàâíåíèé ( 16), (17). Äëÿ ýòîãî ìîaeíî âîñïîëüçîâàòüñÿ àñèìïòîòè÷åñêèìè ñîîòíîøåíèÿìè [4], ñâÿçûâàþùèìè ïàðàìåòðû ÿäðà ðåëàêñàöèè è åãî ðåçîëüâåíòû.…”

Section: îñíîâíûå ñîîòíîøåíèÿ è ïðåäëàãàåìûå ïîäõîäûunclassified

On a method for solving inelastic deformation problems of a laminated composite

Paimushin¹,

Kayumov²,

Kholmogorov³

2021

Iz. VUZ. Matematika

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“…Its mechanical properties will inevitably have a great impact on the performance of the space vehicle structure. In fact, the mechanical properties of FRP laminates are closely related to the layering Angle, layering sequence and other factors [2], so it is of great significance to carry out research on this problem. Nagaraj et al [3] used jute fiber and e-glass to prepare composite materials, and measured the tensile strength of composite materials.…”

Section: Introductionmentioning

confidence: 99%

“…Liu et al [11] studied the dynamic mechanical properties of Bio-HFRP composites by changing the composite sequence, and the mechanical properties of Bio-HFRP composites can be significantly improved by mixing glass fibers. Dumansky et al [12] defined the mechanical properties of composite laminates based on the testing of composite specimens with different layering angles, and proposed the method of constructing constitutive equation, which can be used for the design and prediction of mechanical properties of laminated composites. Zhou et al [13] established a micro-scale model of composite laminates including intra -and interlayer regions, and discussed the influence of intra -and interlayer pores on transverse damage behavior of composite materials.…”

Section: Introductionmentioning

confidence: 99%

Study on the influence of fiber layering on the tensile properties of carbon fiber composites

Pang¹

2023

AETR

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In order to study how the tensile properties of carbon fiber composites change under different layering angles and layering sequences, this paper analyzed the tensile process of CFRP laminates under six different layering modes by using numerical simulation method based on ABAQUS finite element software, and compared the major tensile mechanical properties parameters of CFRP laminates under different layering modes. For example, tensile strength, tensile stiffness, and other physical quantities can measure the mechanical properties of the laminates, and finally obtain a reasonable laminate way that can effectively improve the tensile properties of CFRP laminates. The simulation results show that, under the premise that the number of CFRP laminates is certain, the 0° laminates should be placed on the outside of the laminates as far as possible, and the proportion of 0° laminates should be increased appropriately, which can effectively improve the longitudinal tensile strength of the laminates. The tensile stiffness of laminates can be increased by the existence of positive symmetric or antisymmetric laminates.

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Experiment- and computation-based identification of mechanical properties of fiber reinforced polymer composites

Cited by 10 publications

References 0 publications

Analysis of sensitivity of elastic characteristics of unidirectional carbon fiber specimens with thermoplastic matrix to loading rate at high temperature

Analysis of sensitivity of elastic characteristics of unidirectional carbon fiber specimens with thermoplastic matrix to loading rate at high temperature

On a method for solving inelastic deformation problems of a laminated composite

Study on the influence of fiber layering on the tensile properties of carbon fiber composites

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