In this chapter our objective will be to review the concepts of stress and strain and to present the equations which relate these quantities, and if necessary other variables, for various types of material behavior. Some general comments will be made on the methods of solution of the equations...
1、Stress and strainStress and strain应力和应变Wan YonggeStrain & stressHookes LawStrain & StressStrain & StressStress tensor Normal stressShear stressStrain tensor Strain tensorThe Poissons ratio of a stable, isotropic, linear elastic material will be greater than 1.0 or less than 0.5 because o ...
Reference to thepreceding tabulation of the ratio AeR=I will be helpful.For thin rings the effect of normal stress due to N and shear stressdue to V can be neglected; i.e., set a and b equal to zero. Formoderately thick rings and arches use the equations as they aregiven in Tables...
Four different equations of stress-strain curves were compared and analyzed,then,new sectional equations are provided according to the related test results... JW Zhang,SY Cao - 《Building Science》 被引量: 13发表: 2008年 Relations of complete creep processes and triaxial stress-strain curves of ...
Stress–strain constitutive equations of concrete material at elevated temperatures 来自 国家科技图书文献中心 喜欢 0 阅读量: 170 作者:LY Li,J Purkiss 摘要: The paper presents a critical review of the currently available models for the mechanical behaviour of concrete at elevated temperatures. Based ...
aThe true stress-strain curves are then calculated with the equations (3.2) and (3.3), in which σ and ε are the true stress and strain and s and e are the engineering stress and strain. 真压力类型的曲线然后跟等式一起被计算 (3.2) 和 (3.3),其中 s 和 e 是真的压力和紧靠和 s 和 ...
Thus, the following stress-strain equations are obtained for a plane strain problem: (1.41)σx=E(1+ν)εx+ν1−2ν(εx+εy)−αp,σy=E(1+ν)εx+ν1−2ν(εx+εy)−αpτxy=2Gγxywithα=1−3(1−2νm)Em/3(1−2ν)E Where α is the Biot coefficient. 1.1....
6.1 Strain Gage Rosette Equations Applied to a Specimen of a Linear, Isotropic Material 102 6.2 Corrections for the Transverse Sensitivity of Electrical Resistance Strain Gages 104 8.1 Shear, Moment, Slope, and Deflection Formulas for Elastic Straight Beams 189 ...
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Further, the individual components of the strain increment can be derived from the fundamental equations as follows. Thermal deformation and thermal strain increments When a metal bar is heated from 0°C to T°C, its length becomes long by thermal expansion. The thermal expansion described as the...