显示为金属材料典型的应力- 应变曲线图,在此曲线上包含着一段线性比例关系的区域,此区域的材料行为符合所谓的虎克定律(Hook’sLaw) 弹性行为。此弹性区域的材料模数( 杨氏模数,弹性模数) 为一常数定值;所谓模数Modulus=(stress)/(strain) 即为应力-应变曲线上的对应斜率,在此弹性区域上可以藉由简单的应变量值与起始...
Determining material true stress-strain curve from tensile specimens with rectangular cross-section. Int. J. Solids Structures 36, 3497-3516.Zhang Z L, Hauge M, Odegard J and Thaulow C 1999 Determining material true stress-strain curve from tensile specimens with rectangular cross-section...
Dears, I am looking for Stress Strain data points or approximation of the tangent modulus of elasticity after yielding for Steel Casting material with yield str
High speed tensile test of steel sheets for the stress-strain curve at the intermediate strain rate This paper presents stress-strain curves of steel sheets for an auto-body obtained at intermediate strain rates with a servo-hydraulic type high speed tens... H Huh,JH Lim,SH Park - 《...
An example model stress-strain curve for an elastoplastic material is shown in Figure 2.8. The yield point (initial deviation from proportionality) is obvious, and the post-yield hardening has been simulated as linear in this case. Upon unloading, the material behaves elastically, and when a ...
The stress in this region of the stress–strain curve can be expressed as, 【参考译文】共价键合的高强度纤维(如碳纤维)在断裂前主要经历弹性变形,因为塑性变形可能由于位错运动而发生。而金属纤维则有更多的空间进行塑性变形,因此它们的复合材料表现出第三个阶段,即纤维和基体都发生塑性变形。金属纤维在低温下...
aThe elastic limit is the value of stress on the stress-strain curve at which the material has deformed plastically; that is, it will no longer return to its original size and shape after removing the load. 弹性极限是重音的价值在材料扭屈了塑料的应力应变曲线; 即它不再将回到它的原始尺寸和形...
a则材料的应力应变关系可表示为残余应力与外载荷产生应力之和的形式,即矩阵表达成如式(2)形式: Then the material stress-strain relations may be represented has sum of the stress form as the residual stress with the outside load, namely the matrix expresses Cheng Rushi (2) form:[translate]...
2. Elasticity. This means the stress-strain response is reversible and consequently the material has a preferred natural state. This state is assumed to be taken in the absence of loads at a reference temperature. By convention we will say that the material is then unstressed and ...
Complete Stress-strain Curve of Polypropylene Fiber Reinforced Concrete under Uniaxial Compression after High Temperatures At last, through regression analysis, the uniaxial compression stress-strain piecewise constitutive equations of PPF concrete after high temperatures are ... LI Bing,G Zhang,Y Lin,.....