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Analysis of possibilities of solution of buckling of a screw-shaped beam
Pokorný, Jan ; Fuis, Vladimír (referee) ; Burša, Jiří (advisor)
Bachelor’s thesis deals with the effect of the pretwist of a column on the increase in buckling load and also focuses on a column with rectangular cross section. This problem is divided into two main parts. The first one is represented by the column with a large thread pitch, the second one by a small thread pitch. The results are obtained by a numerical approach using MATLAB software. The verification is carried out via finite element software. The outcome of this thesis is plotting the ratio of the critical loads of the twisted and prismatic columns against the ratio of the side lengths of the rectangular cross section. The results are shown for both types of considered columns.
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Evaluation of risk of buckling in columns with inaccuracies in geometry and load
Fischer, Jiří ; Fuis, Vladimír (referee) ; Burša, Jiří (advisor)
The aim of this thesis is to analyse applicability range of relations for a critical load at buckling for columns with deflection from ideal column – initially curved column or eccentric load. The solution of this thesis is analytical and it comes from solving the differential equation of the deflection curve. This equation has different general solutions for both assumptions. The result achieved in this thesis is general recommendation for maximal values of eccentricity of load according to cross section. Next result is recommendation of maximum curve according to cross section. The chosen cross sections are circular, square, rectangular and thin tubes.
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Evaluation of risk of buckling in columns with inaccuracies in geometry and load
Fischer, Jiří ; Fuis, Vladimír (referee) ; Burša, Jiří (advisor)
The aim of this thesis is to analyse applicability range of relations for a critical load at buckling for columns with deflection from ideal column – initially curved column or eccentric load. The solution of this thesis is analytical and it comes from solving the differential equation of the deflection curve. This equation has different general solutions for both assumptions. The result achieved in this thesis is general recommendation for maximal values of eccentricity of load according to cross section. Next result is recommendation of maximum curve according to cross section. The chosen cross sections are circular, square, rectangular and thin tubes.
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Analysis of possibilities of solution of buckling of a screw-shaped beam
Pokorný, Jan ; Fuis, Vladimír (referee) ; Burša, Jiří (advisor)
Bachelor’s thesis deals with the effect of the pretwist of a column on the increase in buckling load and also focuses on a column with rectangular cross section. This problem is divided into two main parts. The first one is represented by the column with a large thread pitch, the second one by a small thread pitch. The results are obtained by a numerical approach using MATLAB software. The verification is carried out via finite element software. The outcome of this thesis is plotting the ratio of the critical loads of the twisted and prismatic columns against the ratio of the side lengths of the rectangular cross section. The results are shown for both types of considered columns.
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