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	Generalisation of smooth continuous stress-strain curves for metallic materials.
DATA Item	76016
KEYWORD	alloy, aluminium, curve, inelastic, metal, material, modulus, plasticity, program, property, secant, steel, strain, stress, tangent, titanium, aluminum
ISBN	0 85679 153 9
ABSTRACT	ESDU 76016 describes a generalised method for representing a smooth stress/strain curve by an equation involving Youngchr(39)s modulus, a reference stress and a characteristic index. The determination of those last two quantities is explained. The method is valid for tension or compression and provides a convenient method for accounting for the behaviour of a material beyond its elastic range, for example in buckling calculations. The method allows simple calculation of tangent and secant modulus and Poissonchr(39)s ratio but calculation of stress at a given strain or at a ratio of stress to tangent modulus is less easy. For that case approximate equations are given or an exact solution may be obtained using a Fortran program provided on disc (uncompiled) in the software volume as ESDUpac A7616. Tables list the two constants that define the compressive stress/strain curve for 29 aircraft specification materials.