Stability and load carrying capacity of thin-walled composite columns with square cross-section under axial compression

Rozylo, Patryk; Debski, Hubert

doi:10.1016/j.compstruct.2023.117795

Cited by 6 publications

(7 citation statements)

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“…The buckling phase was identified through the observation of the buckling shape of the construction, and approximation methods were used to determine the critical loads [15,23]. Studies of this stage have been included in previous publications, which described profiles with square [38] and rectangular [37] cross-sections, respectively.…”

Section: Experimental Researchmentioning

confidence: 99%

“…All of the parameters presented above are described in detail in [38]. Once damage initiation is satisfied, further loading of this thin-walled profile will degrade the material stiffness parameters.…”

Section: Numerical Simulationmentioning

confidence: 99%

“…Damage evolution starts at the moment when the initiation of damage condition based on the Hashin criterion is fulfilled. By doing so, it is possible to perform progressive damage analysis (PFA), which has been described in detail in the article [38].…”

Section: Numerical Simulationmentioning

confidence: 99%

“…Parallel analysis of the failure of composite structures using the acoustic emission (AE) method and the universal testing machine (UTM) allowed the evaluation of the complex mechanism of failure. More details of similar studies are presented in the paper [38].…”

Section: Introductionmentioning

confidence: 95%

“…The research was conducted under the National Science Centre project (Poland)-number 2021/41/B/ST8/00148. The studies conducted in this article are a follow-up and an extension of the research presented in the papers [37,38].…”

Section: Introductionmentioning

confidence: 98%

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Load-Carrying Capacity of Thin-Walled Composite Columns with Rectangular Cross-Section under Axial Compression

Rozylo,

Rogala,

Pasnik

2024

Materials

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The aim of the current study was to determine the load capacity of composite columns subjected to axial compressive load. The subjects of the study were two types of columns with a rectangular cross-section, with different edge lengths. The tested columns had a closed cross-section. Four different fiber arrangements were analyzed for both cross-sections studied. The research was realized using interdisciplinary methods to determine the mechanism of damage to the composite material, with particular emphasis on damage initiation and propagation. Experimental tests were realized on a testing machine, the analysis was carried out with an acoustic emission system, and image analysis using visual assessment system of deflections of the walls of the structure. In addition, a number of numerical analyses were realized based on advanced modeling techniques for fiber-reinforced composites. A comparative analysis of both quantitative and qualitative results is presented for both analyses. The innovation of the presented research lies in the development of a custom method for modeling structures made of composite material with special emphasis on the failure phase. This will allow to accurately reflect the modeling of thin-walled structures with closed cross-section subjected to loading in a complex stress state.

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