국내 최대 기계 및 로봇 연구정보

공학설계D/B

공학설계D/B 게시판 내용
Volume Title	Structures
Volume No	Cylinders and pipes - buckling under compression, bending, torsion with internal pressure, collapse under external pressure, flat/torispherical head stresses, bend flexibility. Sandwich panels under normal loading - deflections\stresses under pressure, core stresses due to local load.
DATA Title	Elastic local buckling stresses of thin-walled unstiffened circular cylinders under combined axial compression and internal pressure.
DATA Item	83034
KEYWORD	buckling, circular, compression, cylinder, instability, local, pressure
ISBN	0 85679 449 X
ABSTRACT	ESDU 83034 provides data for isotropic cylinders subjected to either axial load or combined axial load and internal pressure. The data relate to cylinders of uniform wall thickness. A correction for the reduction in the buckling stress resulting from initial irregularities is provided. This correction has been used to analyse the results of 60 compression tests taken from the literature to determine the initial irregularity value implied. The results of a statistical analysis of the implied values is also presented. This allows use of the correction for the effect of initial irregularities in design with any desired probability and attached confidence level. Also presented is the analysis of the increase in buckling stress associated with increased internal pressure. This has been determined by applying the correction for initial irregularities to over 150 test results. Mean and limit curves through the resulting analysis are provided. A practical worked example illustrates the use of the data.