국내 최대 기계 및 로봇 연구정보

공학설계D/B

공학설계D/B 게시판 내용
Volume Title	Structures
Volume No	Organisational documents. General data - principal stress strains, yielding, inelastic stress/strain curve, introduction to statistics, Normal distribution. Section constants - shear centre, warping constants, flexural properties, stress distribution in shells under bending.
DATA Title	Torsion and secondary warping constants for a bulb angle.
DATA Item	Struct 00.07.01
KEYWORD	angle, bulb, constant, secondary, section, torque, torsion, warping, warpage
ISBN
ABSTRACT	ESDU Struct 00.07.01 gives graphs for the torsion constant of a bulb angle section with legs of equal thicknesses, and for the secondary warping constant of an angle section with legs of equal or unequal thickness. Each constant is plotted as a fraction of its value for a plain section with no corner radius. The torsion constant is a function of bulb radius, developed length of the median line of the section to the centre of the bulb, and the leg thickness. It is calculated taking the contribution of the corner radius to be that of a bar of radius equal to the thickness of the leg, which is adequate for radii between 1.2 and 1.8 times that thickness. The warping constant is a function of bulb radius, and of the thicknesses and widths of the two legs. The formulae from which the curves were calculated are given. ESDU Struct 00.07.00 defines the torsion constant and the secondary warping constant.