Collapse of channel section composite profile subjected to bending. Part I: Numerical investigations

Gliszczyński, Adrian; Czechowski, L.

doi:10.1016/j.compstruct.2017.07.033

Cited by 23 publications

(8 citation statements)

References 62 publications

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“…Such a slight difference may suggest that both cases can coexist in experimental research. This phenomenon has already been the subject of the authors' research, among others, in works on composite structures [46][47][48]. Moreover, it is noteworthy that no other forms of buckling were identified in the experimental tests either.…”

Section: Fe Model With Assumed Boundary Conditionsmentioning

confidence: 59%

“…What is also important, regardless of the amplitude of initial imperfections, the implemented buckling mode did not change during compression (cf. Figure 8), while cases of the buckling mode change during loading can be found, among others, in [46][47][48]. When implementing the multilinear model, the amplitude of the initial imperfections did not generate significant differences in relation to the calculated force vs. shortening curves.…”

Section: Compression Of Channel Section Profiles At Ambient Temperaturementioning

confidence: 85%

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Heating and Compression at Elevated Temperature of Thin-Walled Titanium Channel Section Columns

2021

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The paper deals with numerical and experimental investigations of the channel section column subjected to heating and compression at elevated temperature. The analyzed columns were made of titanium alloy (Grade 2) and simply supported on both ends. The research procedure involved initial compression of the column (i), heating the preloaded column (ii) and compression of the column at elevated temperature to failure (iii). The tests were performed at temperatures from 23 °C to 300 °C. Numerical calculations were carried out in the Ansys® software and involved the application of bilinear and multilinear isotropic hardening. It has been revealed that the temperature increase in a statically indeterminate system causes a decrease in the load-carrying capacity of the profile. An increase in temperature by 27 °C causes a reduction of the load-carrying capacity by 10%, while compression at temperature 300 °C reduces the nominal load-carrying capacity of the profile by half. Most of the proposed numerical procedures allowed for accurate estimation of reaction forces during heating and maximum compressive forces recorded during compression at elevated temperatures. The correctness of the determined material characteristics and the suitability of shell models for estimation of the response of a thin-walled structure subjected to thermomechanical loading was confirmed.

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Section: Fe Model With Assumed Boundary Conditionsmentioning

confidence: 59%

Section: Compression Of Channel Section Profiles At Ambient Temperaturementioning

confidence: 85%

Heating and Compression at Elevated Temperature of Thin-Walled Titanium Channel Section Columns

2021

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“…The failure results in a significant compressive strain perpendicular to fibers, causing matrix cracking, matrix/fiber deboning, delimitation, and fiber breakage leading to transverse rupture. [31][32][33] After this phase, the bottom wall, the corner of the fillet radius region and overlap areas of fillet radius have not been completely ruptured yet because of its high toughness due to manufacturing process.…”

Section: Fracture Energy Parameters Valuementioning

confidence: 99%

Bending behavior of single hat-shaped composite T-joints under out-of-plane loading for lightweight automobile structures

Hou

Wang

et al. 2018

Journal of Reinforced Plastics and Composites

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This paper presents an analytical, numerical, and experimental study on the failure behavior of single hat-shaped T-joints made of plain woven carbon fiber polymer (T300/epoxy 618) and subjected to out-of-plane bending. The T-joint is manufactured by vacuum bag molding process at room temperature. An analytical model is developed to analyze the experimental results and to establish the associated failure criteria. Two failure modes: (a) laminate buckling and (b) laminate crushing are considered, and the theoretical relationships for predicting the failure load associated with each of the two modes were developed. The experimental data correlate closely with the analytically predicted behavior, including failure mode and bending stiffness. In particular, both laminate buckling and laminate crushing are observed during the experiment with laminate crushing being the final failure mode, which can be considered to be the most important failure mode of the fabricated T-joint. In addition, numerical simulations based on the finite element method and the Hashin damage criteria also accurately predict the flexural modulus, the peak load, and failure locations of the Tjoint obtained in the test.

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“…On the other hand, studies on composite materials in a range of buckling and post-buckling were numerically conducted in References [9][10][11][12][13] and also experimentally in References [14][15][16][17][18][19][20][21][22], among others. Analyses of progressive failures of composite structures were performed in References [23][24][25][26][27][28]. Liu et al [29] analysed thermal-mechanical instabilities in structures by applying hybrid load-controlled and displacement-controlled algorithms.…”

Section: Introductionmentioning

confidence: 99%

The Strength of Egg Trays under Compression: A Numerical and Experimental Study

2020

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This work concerns the analysis of egg packages subjected to compression. Experimental investigations were carried out to determine the curves of compression and maximum loads. To compare packages accessible on the market, several different shapes of egg packages were tested after being conditioned in air with a relative humidity of 50%. Several paper structures in stock were compressed. By validating the experiment results, numerical computations based on the finite element method (FEM) were executed. The estimations of a numerical model were performed with the use of the perfect plasticity of paper and with the assumption of large strains and deflections. Our own two structures of egg packaging were taken into account: basic and modified. The material of the packages was composed of 90% recovered paper and 10% coconut fibres. This paper involved the numerical modelling of such complex packaging. Moreover, our research showed that introducing several features into the structures of the packaging can improve the stiffness and raise the maximum load. Thanks to the application of ribs and grooves, the strength ratio and compression stiffness, in comparison to the basic tray, increased by approximately 23.4% and 36%, respectively. Moreover, the obtained indexes of modified trays were higher than the majority of the studied market trays.

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Collapse of channel section composite profile subjected to bending. Part I: Numerical investigations

Cited by 23 publications

References 62 publications

Heating and Compression at Elevated Temperature of Thin-Walled Titanium Channel Section Columns

Heating and Compression at Elevated Temperature of Thin-Walled Titanium Channel Section Columns

Bending behavior of single hat-shaped composite T-joints under out-of-plane loading for lightweight automobile structures

The Strength of Egg Trays under Compression: A Numerical and Experimental Study

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