Flexural buckling and post-buckling of columns made of aluminium alloy

Szymczak, Czesław; Kujawa, Marcin

doi:10.1016/j.euromechsol.2018.10.006

Cited by 20 publications

(10 citation statements)

References 31 publications

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“…Prior to the investigation of the scaled effects on scaled columns, the proposed I-section column model is verified analytically and numerically in accordance with the study presented in reference. 32 The details of the full and scaled models are provided in Figure 2. Initial verification results for critical-buckling loads are tabulated in Table 4 for both analytical and numerical predictions and contrasted with those of reference.…”

Section: Scaling Of a Steel Column Exposed To Bucklingmentioning

confidence: 99%

Application of first‐order finite similitude in structural mechanics and earthquake engineering

Atar

Davey

Darvizeh

2021

Earthq Engng Struct Dyn

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Section: Scaling Of a Steel Column Exposed To Bucklingmentioning

confidence: 99%

Application of first‐order finite similitude in structural mechanics and earthquake engineering

Atar

Davey

Darvizeh

2021

Earthq Engng Struct Dyn

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“…Another variant of the modified boundary conditions was suggested by Szymczak and Kujawa [ 40 , 41 , 42 ]. Comparing the results of simulations of bifurcation loads for both the modified variants of the boundary conditions, one can state that they are consistent.…”

Section: Formulation Of the Problemmentioning

confidence: 99%

Catastrophic Influence of Global Distortional Modes on the Post-Buckling Behavior of Opened Columns

Teter

Kołakowski

2020

Materials

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The multimodal buckling of thin-walled isotropic columns with open cross-sections under uniform compression is discussed. Column lengths were selected to enable strong interactions between selected eigenmodes. In the case of short columns or very long ones subjected to compression, single-mode buckling can be observed only and the effect under discussion does not occur. In the present study, the influence of higher global modes on the load-carrying capacity and behavior in the post-buckling state of thin-walled structures with open cross-sections is analyzed in detail. In the literature known to the authors, higher global modes are always neglected practically in the analysis due to their very high values of bifurcation loads. However, the phenomenon of an unexpected loss in the load-carrying capacity of opened columns can be observed in the experimental investigations. It might be explained using multimode buckling when the higher global distortional-flexural buckling modes are taken into account. In the conducted numerical simulations, a significant influence of higher global distortional-flexural buckling modes on the post-buckling equilibrium path of uniformly compressed columns with C- and TH-shaped (the so-called “top-hat”) cross-sections was observed. The columns of two lengths, for which strong interactions between selected eigenmodes were seen, were subject to consideration. Two numerical methods were applied, namely, the semi-analytical method (SAM) using Koiter’s perturbation approach and the finite element method (FEM), to solve the problem. The SAM results showed that the third mode had a considerable impact on the load-carrying capacity, whereas the FEM results confirmed a catastrophic effect of the modes on the behavior of the structures under analysis, which led to a lack of convergence of numerical calculations despite an application of the Riks algorithm. All elastic-plastic effects were neglected.

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“…19 Szymczak and Kujawa discussed the flexural buckling and initial post-buckling of axially compressed columns made of aluminium alloy described by the Ramberg–Osgood relationship. 20 Few of the authors employed finite element analysis (FEA) for the estimation of buckling load for multistage cylinder, 21,22 but the deviation in the results obtained have not been in the very close vicinity all the times.…”

Section: Introductionmentioning

confidence: 99%

An analytical approach to evaluate the maximum load carrying capacity for pin-mounted telescopic hydraulic cylinder

Prakash

Gupta

Kankar

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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The hydraulic cylinder is an actuating mechanical maneuver used to transfer the power from one station to another. For industrial purposes, various types of cylinders are employed as per the requirement. Telescopic hydraulic cylinder, also known as the two-stage hydraulic cylinder is one of the widely used hydraulic cylinders in the industry. The closed center length of a telescopic cylinder is 20% to 40% of the open center length depending on the number of stages. The safe operation of such telescopic hydraulic cylinder is highly essential. One of the prominent failures includes the buckling failure of the hydraulic cylinder. Once the system fails, the operating parameters change abruptly and thus the proper working gets affected. In literature, there is no significant standard that governs the buckling load determination of two-stage hydraulic cylinder. Existing technical standard ISO/TS 13725 : 2016 approach is only prescribed for the single-stage cylinder. In this manuscript, the emphasis is kept upon the determination of the buckling load for the two-stage pin-mounted telescopic hydraulic cylinder. The buckling governing equation has been derived to obtain the buckling load using an analytical approach. Additionally, the stress condition of cylinder barrels of different stages has been discussed per thick cylinder theory. The finite element analysis has been performed for various dimensions of the hydraulic cylinder. The results obtained from analytical results show close vicinity with the finite element results.

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Flexural buckling and post-buckling of columns made of aluminium alloy

Cited by 20 publications

References 31 publications

Application of first‐order finite similitude in structural mechanics and earthquake engineering

Application of first‐order finite similitude in structural mechanics and earthquake engineering

Catastrophic Influence of Global Distortional Modes on the Post-Buckling Behavior of Opened Columns

An analytical approach to evaluate the maximum load carrying capacity for pin-mounted telescopic hydraulic cylinder

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