Numerical Analysis of the Behavior of Compressed Thin-Walled Elements With Holes

Różyło, Patryk; Wrzesińska, K.

doi:10.12913/22998624/64006

Cited by 25 publications

(6 citation statements)

References 14 publications

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“…Figure 5 illustrates the equivalent non-Mises stress distribution. The solutions make it possible to predict which areas should be strengthened and where is it possible to place lightening holes or how to modify the design to optimise it, which is often the conclusion of scien- tific papers [7,9]. Figure 6 shows the deformation of the frame in this case.…”

Section: Sample Ansys Analysis -Modeling Stress and Deformation Of A mentioning

confidence: 99%

Application of Ansys in Teaching Fem on The Example of a Loaded Mars Rover Chassis

Łazuka

2016

Adv. Sci. Technol. Res. J.

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The aim of the paper is to present the idea of using ANSYS software in teaching engineering students the finite element method. ANSYS is an extremely sophisticated engineering tool used in almost every engineering company nowadays. It is introduced to almost all engineering students during their studies. Using ANSYS knowingly requires perfect understanding of the finite element method that is responsible for ANSYS work. This paper presents how this professional software can help students master FEM. The first part of the paper introduces the finite element method. It also suggests a way of using ANSYS in teaching FEM on the example of a twodimensional restrained beam calculated in a simple computer program. The second part illustrates the effectiveness of ANSYS with sample FEM analysis of a planetary rover's chassis and presents basic fuctionalities of ANSYS Workbench Mechanical. Conducted calculations provide useful data about the model's suitability for its purpose and possibility of modifications.

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Section: Sample Ansys Analysis -Modeling Stress and Deformation Of A mentioning

confidence: 99%

Application of Ansys in Teaching Fem on The Example of a Loaded Mars Rover Chassis

Łazuka

2016

Adv. Sci. Technol. Res. J.

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“…The present phenomenon represents a special type of phenomenon that many researchers are currently dealing with [15][16][17]. It is important, to conduct interdisciplinary as well as in-depth research, especially during behaviors directly leading to loss of stability [18][19][20]. The behavior of the structure after buckling remains a challenge for a wide range of researchers and requires careful interpretation [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

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

Różyło¹,

Smagowski²,

Paśnik³

2023

Adv. Sci. Technol. Res. J.

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The present paper, provides a study of conducting experimental investigations (based on the ISO standards), in the context of determining material properties (mechanical and strength parameters) in the case of thin-walled composite structures -made of carbon-epoxy composite. Tests were carried out on 5 different types of test specimens (in accordance with the standards), with a minimum of 9 specimens per each type of test. The tests provided high repeatability of results, and the large number of test specimens per each test made it possible to precisely average the test results in terms of determining the necessary material properties. The tests were carried out using a Zwick Z100 universal testing machine (UTM), under room temperature conditions, using two types of test heads that allow static experimental tests. The results presented in this paper constitute a prelude to research within the framework of the project from the National Science Centre (Poland) with the number 2021/41/B/ST8/00148. The paper presents the initial stage of the implementation of the aforementioned project -which was the determination of material parameters of the composite material from which the target thin-walled composite structures with closed sections were made. The purpose of this paper was mainly to present a methodology for the determination of material parameters describing a composite material (laminate), in order to allow subsequent implementation of the determined properties into numerical models.

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“…Once the buckling phenomenon is reached, the deflection increase within the walls of the structure begins. A characteristic feature of thin-walled composite columns is the ability to continue to carry an axial compressive load after buckling, often several times higher than the load corresponding to the loss of stability [ 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. Regarding the above, thin-walled composite columns have a significant reserve of load capacity [ 21 , 22 , 23 , 24 , 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Failure for Thin-Walled Composite Columns

Różyło

2021

Materials

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The novelty of this paper, in relation to other thematically similar research papers, is the comparison of the failure phenomenon on two composite profiles with different cross-sections, using known experimental techniques and advanced numerical models of composite material failure. This paper presents an analysis of the failure of thin-walled structures made of composite materials with top-hat and channel cross-sections. Both experimental investigations and numerical simulations using the finite element method (FEM) are applied in this paper. Tests were conducted on thin-walled short columns manufactured of carbon fiber reinforced polymer (CFRP) material. The experimental specimens were made using the autoclave technique and thus showed very good strength properties, low porosity and high surface smoothness. Tests were carried out in axial compression of composite profiles over the full range of loading—up to total failure. During the experimental study, the post-buckling equilibrium paths were registered, with the simultaneous use of a Zwick Z100 universal testing machine (UTM) and equipment for measuring acoustic emission signals. Numerical simulations used composite material damage models such as progressive failure analysis (PFA) and cohesive zone model (CZM). The analysis of the behavior of thin-walled structures subjected to axial compression allowed the evaluation of stability with an in-depth assessment of the failure of the composite material. A significant effect of the research was, among others, determination of the phenomenon of damage initiation, delamination and loss of load-carrying capacity. The obtained results show the high qualitative and quantitative agreement of the failure phenomenon. The dominant form of failure occurred at the end sections of the composite columns. The delamination phenomenon was observed mainly on the outer flanges of the structure.

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Numerical Analysis of the Behavior of Compressed Thin-Walled Elements With Holes

Cited by 25 publications

References 14 publications

Application of Ansys in Teaching Fem on The Example of a Loaded Mars Rover Chassis

Application of Ansys in Teaching Fem on The Example of a Loaded Mars Rover Chassis

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

Comparison of Failure for Thin-Walled Composite Columns

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