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	Method of calculating stress distribution in a reinforced symmetrical shell under bending.
DATA Item	Struct 00.06.01
KEYWORD	bending, cylinder, distribution, shell, stress
ISBN
ABSTRACT	ESDU Struct 00.06.01 gives a graphical iterative method for determining the stress distribution corresponding to a bending moment, or the bending moment corresponding to a maximum strain, under the assumption that plane sections remain plane after bending. The method requires that a load-deflection curve is calculated for each typical panel comprising one plate and one stringer. A first guess is made for the position of the neutral axis of the shell. Then a strain-distance graph is readily constructed, where distance is measured along the axis of symmetry of the shell cross section, because the strain will vary linearly on that axis and is known to be zero at the neutral axis. From the strain curve the tensile and compressive panel loads may now be calculated and summed. If they are not in equilibrium a further iteration with a modified position for the neutral axis is required until equilibrium is achieved.