Experimental Research in the Aspect of Determining the Mechanical and Strength Properties of the Composite Material Made of Carbon-Epoxy Composite

Różyło, Patryk; Smagowski, Wojciech; Paśnik, J.

doi:10.12913/22998624/161598

Cited by 9 publications

(11 citation statements)

References 43 publications

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“…The material properties were experimentally established in accordance with ISO standards: the compression test followed PN-EN ISO 14126 (from 2002) [52], the static tensile test adhered to PN-EN ISO 527-5 (from 2010) [53], and the shear test complied with PN-EN ISO 14129 (from 2000) [54]. Details on the procedure for determining material properties are outlined in [55]. The material properties are presented in Table 1.…”

Section: Study Subject and Materials Propertiesmentioning

confidence: 99%

Stability and Failure of Thin-Walled Composite Plate Elements with Asymmetric Configurations

Falkowicz

2024

Materials

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In the present study, the stability and failure phenomena of thin-walled constructions subjected to axial compression, featuring a central cut-out, and constructed from composite materials were explored. These constructions were fabricated from a carbon–epoxy composite using the autoclave method. The research encompassed experimental assessments on actual specimens alongside numerical analyses employing the finite element approach within the ABAQUS® software. The investigation spanned the entire load spectrum up to the point of structural failure, incorporating both practical trials and simulation analysis. During the practical assessments, the study monitored the post-buckling response and captured acoustic emissions to thoroughly evaluate the composite’s failure mechanisms. Additionally, the ARAMIS system’s non-invasive three-dimensional scanning was employed to assess deformations. Theoretical simulations utilized a step-by-step failure analysis, initiating with failure onset as per Hashin’s theory and proceeding to failure progression based on an energy criterion. The simulation outcomes, particularly concerning the critical and post-critical phases, were juxtaposed with empirical data to identify the composite’s vulnerability zones. The comparison underscored a significant concordance between the simulation predictions and the empirical findings.

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Section: Study Subject and Materials Propertiesmentioning

confidence: 99%

Stability and Failure of Thin-Walled Composite Plate Elements with Asymmetric Configurations

Falkowicz

2024

Materials

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“…Numerical simulations, carried out with the commercial Abaqus® software using the FEM, made it possible to determine the force and buckling form by solving a linear eigenproblem. The material parameters used in the numerical studies were determined using the procedure outlined in the publication) [30]. The properties of the test material are shown in Table 1.…”

Section: Research Objectmentioning

confidence: 99%

“…Numerical simulations were conducted using the FEM in the software Abaqus®. The material properties of the analyzed structures were determined experimentally in the following works [30,31].…”

Section: Introductionmentioning

confidence: 99%

Stability of Thin-Walled Composite Structures with Closed Sections Under Compression

Rosłaniec,

Różyło

2024

Adv. Sci. Technol. Res. J.

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The purpose of the research was to analyze the experimental-numerical influence of the type of cross-section on the stability of thin-walled composite columns with closed (rectangular) cross-sections. The subject of the investigation was thin-walled composite structures made of CFRP composite (carbon fiber reinforced polymer), characterized by a closed rectangular cross-section shape of the profile and a identical ply configuration. In this study, experimental and numerical investigations of axially compressed columns were performed to determine the values of buckling loads and buckling forms. Experimental investigations were performed using a universal testing machine with an optical deformation measurement system. In parallel with the experimental tests, numerical simulations were made using the Finite Element Method (FEM). The numerical studies conducted using dedicated numerical models and the experimental studies made it possible to carry out a thorough analysis of the impact of the cross-sectional shape on the buckling phenomenon of the structure. The novelty of the present paper is the use of interdisciplinary testing methods to compare the effect of cross-sectional geometry on the stability of thin-walled composite columns.

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“…Table 1 shows the mechanical properties of the layer of the CFRP laminate in three orthotropic directions: G -shear modulus, ν -Poisson's ratio, E -tensile modulus, F T -tensile strength, F S -shear strength, and F C -compressive strength. The properties of the carbon-epoxy composite were determined experimentally in compliance with the relevant ISO standard [57]. This made it possible to determine a actual mechanical properties of a produced material, as in practice these may differ from the ideal properties declared by the manufacturer.…”

Section: Test Specimen and Its Mechanical Propertiesmentioning

confidence: 99%

Numerical and Experimental Study of Crack Propagation in the Tensile Composite Plate with the Open Hole

Wysmulski¹

2023

Adv. Sci. Technol. Res. J.

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In this study, the thin-walled plate with the central open hole made of carbon-epoxy composite was investigated. The plate was tested in tension to investigate the mechanism of crack formation in the composite structure. The studies were carried out using two individual methods: experimental and numerical. In the experiment test, load was measured as the function of plate elongation. The Plate elongation was analysed using the Aramis optical noncontact measurement system. In the numerical study, the FEM model reproducing the experimental conditions was developed in the Abaqus software. The cracking process was modelled using the XFEM method (extended finite element method). This procedure allowed the of the composite to be examined over the full range of the tensile load. The behaviour of the plate with a circular open hole was investigated before damage symptoms and the damage initiation load was determined. The study continued to analyse the initial cracking and delamination of the laminate layers, together with crack propagation leading to cracking of all the laminate layers (complete failure of the composite structure). The novelty of this study is that it uses the popular XFEM method to describe the cracking and failure of the composite structure. In addition, the study proposes the novel method for determining the crack initiation and failure loads of the composite plate under tension, and the results obtained thereby are verified numerically.

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Experimental Research in the Aspect of Determining the Mechanical and Strength Properties of the Composite Material Made of Carbon-Epoxy Composite

Cited by 9 publications

References 43 publications

Stability and Failure of Thin-Walled Composite Plate Elements with Asymmetric Configurations

Stability and Failure of Thin-Walled Composite Plate Elements with Asymmetric Configurations

Stability of Thin-Walled Composite Structures with Closed Sections Under Compression

Numerical and Experimental Study of Crack Propagation in the Tensile Composite Plate with the Open Hole

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