Buckling of unstiffened cone-cylinder shells subjected to axial compression and thermal loading

Ifayefunmi, O.; Ismail, Mohd Shahrom; Othman, M.Z.A.

doi:10.1016/j.oceaneng.2021.108601

Cited by 9 publications

(15 citation statements)

References 27 publications

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“…These methods were validated to have good agreement with the buckling experimental results in Refs Wang et al. (2018) and Ifayefunmi et al. (2021), respectively.…”

Section: Illustrative Examplesmentioning

confidence: 89%

“…Buckling experiments were carried out in Ref Ifayefunmi et al. (2021), in which the experimental setup and procedure are briefly introduced as follows.…”

Section: Illustrative Examplesmentioning

confidence: 99%

“…The explicit dynamic analysis needs 15.0 min. Then, the Riks method in Ref Ifayefunmi et al. (2021) is employed to predict the buckling load with the initial arc length increment is 0.01.…”

Section: Illustrative Examplesmentioning

confidence: 99%

“…Conical-cylindrical shells are formed by the connection of two or more simple components such as conical shells and cylindrical shells with a common axis of rotation, and there is a slope discontinuity at the connection. However, the failure mode of conical-cylindrical shells is usually plastic instability in the connection area as shown in Figure 1(c) (Ifayefunmi et al. , 2021), which is significantly different from the failure modes of cylindrical or conical shells.…”

Section: Introductionmentioning

confidence: 98%

“…(2004, 2006) used FE method to analyze the thermal buckling of composite oval cylindrical shells and various conical-cylindrical combined shells. Ifayefunmi et al. (2021) conducted numerical and experimental studies on the buckling of low carbon steel conical-cylindrical shells under simultaneous quasi-static axial compression and thermal loads.…”

Section: Introductionmentioning

confidence: 99%

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Adaptive step-size numerical vibration correlation technique for buckling prediction of thin-walled shells under axial compression and thermal loads

Huang

Xia

Gao

et al. 2022

MMMS

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PurposeThe purpose of this paper is to propose a numerical prediction method of buckling loads for shell structures under axial compression and thermal loads based on vibration correlation technique (VCT).Design/methodology/approachVCT is a non-destructive test method, and the numerical realization of its experimental process can become a promising buckling load prediction method, namely numerical VCT (NVCT). First, the derivation of the VCT formula for thin-walled structures under combined axial compression and thermal loads is presented. Then, on the basis of typical NVCT, an adaptive step-size NVCT (AS-NVCT) calculation scheme based on an adaptive increment control strategy is proposed. Finally, according to the independence of repeated frequency analysis, a concurrent computing framework of AS-NVCT is established to improve efficiency.FindingsFour analytical examples and one optimization example for imperfect conical-cylindrical shells are carried out. The buckling prediction results for AS-NVCT agree well with the test results, and the efficiency is significantly higher than that of typical numerical buckling methods.Originality/valueThe derivation of the VCT formula for thin-walled shells provides a theoretical basis for NVCT. The adaptive incremental control strategy realizes the adaptive adjustment of the loading step size and the maximum applied load of NVCT with Python script, thus establishing AS-NVCT.

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“…These methods were validated to have good agreement with the buckling experimental results in Refs Wang et al. (2018) and Ifayefunmi et al. (2021), respectively.…”

Section: Illustrative Examplesmentioning

confidence: 89%

“…Buckling experiments were carried out in Ref Ifayefunmi et al. (2021), in which the experimental setup and procedure are briefly introduced as follows.…”

Section: Illustrative Examplesmentioning

confidence: 99%

“…The explicit dynamic analysis needs 15.0 min. Then, the Riks method in Ref Ifayefunmi et al. (2021) is employed to predict the buckling load with the initial arc length increment is 0.01.…”

Section: Illustrative Examplesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations