= G' + iG"G': storage modulusG": loss modulusγ = γo cos wtγ' = -wγo sin wtMaxwell 모델식 대입하면σ = ηwγo(wτ ... : zero shear viscosityK , m: 상수▷ Power law modelη》η∞ , η0》η일 때η=η0/(K1γ')m= K2γ' n-1n: Power law indexn ... (ln Ω1)γ'범위: 0.1~10 sec-1σ = C/2πr12Lr1: bob의 반경- 비교적 점도가 낮은 유체의 점도 측정에 널리 사용됨○ Cone-and-Plate
δ = γo cos(ω t - δ)[γo : shear strain at maximum amplitude, δ: phase angle between shear stress and s ... . Thixotropy: (a) individual shear rate as a function of time and (b) composite curve with varying shear ... hearmodulus, G″: viscous modulus)phase angle② G* 는 torque 또는 compress/tension 을 측정③ δ 는 elastic
be met. You are to derive your compression indices from the strain vs. log effective stress curve ... tresses ;allowable shear stress ;cross-sectional area of steel pipe pile ;moment of incrtia ;sectional ... modulus ;check axial and flexural stresses ;∴ O.K.check shear strss ;∴ O.K.3. A steel pile made of A36
))fT torsional flexibility of a bar (막대기의 비틀림 유연성)G modulus of elasticity in shear (전단 탄성 계수)g ... 의 단면계수),shear center(전단 중심)s distance(거리), distance along a curve(곡선에 따른 거리)T tensile force(인장력 ... , I2 principal moments of inertia(주 관성 모멘트)J torsion constant(비틀림 상수)K stress-concentration factor