Optimization of I-Section Profile Design by the Finite Element Method

Różyło, Patryk

doi:10.12913/22998624/61931

Cited by 21 publications

(11 citation statements)

References 10 publications

(9 reference statements)

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“…With further loading of the structure, the deformations corresponding to the lowest buckling modes increase. The post-critical load vs. deflection characteristics (P-u z ) remain stable, which confirms that the structure can carry the compressive load in spite of buckling [52][53][54][55][56][57], as shown in Figure 5. The experimental (testing machine) and numerical (FEM) characteristics are compared with the results of the AE signal energy-the results are plotted for the axial compression case and for extreme values of the load eccentricity applied in the two perpendicular directions e 1 and e 2 .…”

Section: Composite Materials Damage Initiationsupporting

confidence: 55%

Stability and Load-Carrying Capacity of Thin-Walled FRP Composite Z-Profiles under Eccentric Compression

et al. 2020

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This study investigates the effect of eccentric compressive load on the stability, critical states and load-carrying capacity of thin-walled composite Z-profiles. Short thin-walled columns made of carbon fiber-reinforced plastic composite material fabricated by the autoclave technique are examined. In experimental tests, the thin-walled structures were compressed until a loss of their load-carrying capacity was obtained. The test parameters were measured to describe the structure’s behavior, including the phenomenon of composite material failure. The post-critical load-displacement equilibrium paths and the acoustic emission signal enabling analysis of the composite material condition during the loading process were measured. The scope of the study also included performing numerical simulations by finite element method to solve the problem of non-linear stability and to describe the phenomenon of composite material damage based on the progressive failure model. The obtained numerical results showed a good agreement with the experimental characteristics of real structures. The numerical results are compared with the experimental findings to validate the developed numerical model.

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Section: Composite Materials Damage Initiationsupporting

confidence: 55%

Stability and Load-Carrying Capacity of Thin-Walled FRP Composite Z-Profiles under Eccentric Compression

et al. 2020

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“…Earlier, Allen et al worked on a few aluminum alloys and recommended a valuable relationship between tensile strength, hardness and electrical conductivity for 7079-T6, 7178-T6, 7075-T6, and 7002-T6 only. No such relation was found for other types of aluminum alloys [25][26][27]. Hagemaier reported that it was possible to find out the actual residual yield strength of 2024-T3/T4 and 7075-T6 alloys using hardness and electrical conductivity measurements [8].…”

Section: Introductionmentioning

confidence: 99%

Alloying Elements Effects on Electrical Conductivity and Mechanical Properties of Newly Fabricated Al Based Alloys Produced by Conventional Casting Process

et al. 2021

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The present investigation deals with a comprehensive study on the production of aluminum based alloys with the incorporation of different alloying elements and their effect on its electrical conductivity and mechanical properties. Casting of pure aluminum with different concentration and combinations of alloying additives such as cupper (Cu), magnesium (Mg) and silver (Ag) were carried out using a graphite crucible. The as-cast microstructure was modified by hot rolling followed by different heat-treated conditions viz., annealing, normalizing, quenching, and age hardening. The mechanical properties and electrical conductivity of the produced heat-treated alloys sheets under various processing conditions were carried out using tensile testing, hardness, and electrical resistivity measurements. It was found that by increasing the alloying elements content, yield strength results increased significantly by more than 250% and 500% for the as rolled and 8 h aged Al-Cu-Mg alloy, respectively. On the other hand, the electrical conductivity reduces slightly with −14.6% and −16.57% for the as rolled and 8 h aged of the same Al-Cu-Mg alloy, respectively.

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“…When designing structures, it is important that undesirable phenomena of material failure caused by loads are prevented, and if they occur, it is crucial to predict areas where failure propagation begins. There are numerous studies [4,5,[11][12][13][14][15][16] on crack propagation processes and the use of the xFEM method. The innovative character of this method stems from the fact that the simulation of crack initiation and propagation processes runs independently of the applied FEM mesh type and density.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of crack initiation and propagation in an aluminium sample

2018

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This paper reports an analysis of simulated crack propagation in an aluminium sample depending on the direction of external loads. The objective of the study was to perform a numerical analysis of crack propagation as well as to determine regions which are most susceptible to failure. The object of study was created from numerical analysis of material failure due to fibre separation using Abaqus 6.14. The modelling of crack propagation was performed using the numerical xFEM method for separating material fibres irrespective of the finite element mesh.Keywords: Abaqus, xFEM, numerical analysis, crack initiation and propagation Streszczenie W ramach pracy przeprowadzono symulację numeryczną procesu propagacji pękania aluminiowej próbki, w zależności od kierunku obciążeń zewnętrznych. Celem pracy było wykonanie badania numerycznego propagacji pękania materiału oraz wykazanie obszarów najbardziej newralgicznych. Przedmiot badań przygotowano w ramach analizy numerycznej zniszczenia materiału na skutek rozdzielenia włókien w oparciu o środowisko Abaqus 6.14. Propagacja procesu pękania materiału została przeprowadzona na podstawie metody badań numerycznych xFEM, stanowiącej metodę rozdzielania włókien materiału niezależnie przebiegającego od siatki elementów skończonych.

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Optimization of I-Section Profile Design by the Finite Element Method

Cited by 21 publications

References 10 publications

Stability and Load-Carrying Capacity of Thin-Walled FRP Composite Z-Profiles under Eccentric Compression

Stability and Load-Carrying Capacity of Thin-Walled FRP Composite Z-Profiles under Eccentric Compression

Alloying Elements Effects on Electrical Conductivity and Mechanical Properties of Newly Fabricated Al Based Alloys Produced by Conventional Casting Process

Numerical analysis of crack initiation and propagation in an aluminium sample

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