真实/指数应变 即true strain / logarithmic strain:εtrue=lnL1L0 真实的应变,是基于变形后的长度积分得到的,因为表现形式是指数的形式,所以也可以称为指数应变。 名义/工程应变 nominal strain / engineering strain:εnominal=ΔLL0 名义应变,”名义“是指我们不考虑一步步的中间过程,只看开始和结尾,根据两者的...
工程应变，即名义应变，指的是在工程计算中，将初始长度与最终长度的比值作为应变的量度。它不考虑变形过程中的每一个微小步骤，简化了实际变形的复杂性，便于工程应用。真实应变，或称为指数应变，基于变形后的长度进行积分求得。真实应变的计算方法更接近实际变形情况，但由于其指数形式，因此得名。在材料...
真应变与engineering strain工程应变相对
To show the differences between the strain rates, equations were presented for the engineering strain rate and strain as a function of true strain rate. To deform the specimen at constant true strain rates at 600–2500 s −1 , a bi-linear incident pulse was necessary. Furthermore, a ...
Strain—A deformation produced by stress. Stress has units of a force measure divided by the square of a length measure, and the average stress on a cross-section in the tensile test is the applied force divided by the cross-sectional area. Similarly, we may approximate the strain component ...
摘要: The article deals with a possibility of structure of approximate true stress-true strain diagram using the engineering stress-strain curve and mechanical properties of material. A possibility to define the curve more precisely behaind the point of instability is demonstraited....
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 ...
Take nominal strain as 0.1. To find the true stress value: Enter the engineering strain as 0.1. The true strain calculator will return 0.09531 as the value of the true strain. Fill in the engineering or nominal stress as 8 MPa. Using the true stress calculator: σ=8×(1+0.8)=8.8 MPa...
Engineering stress-strain curve and true stress-strain curve are equal up to .A.Elastic limitB.Yeild pointC.Tensile strength pointD.Proportional limit的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,
The so-called stress-strain curve in engineering is usually the nominal stress-strain curve.However,this kind of curve is only approximate,which only provides a reference to actual engineering problems.The true stress-strain curve of the widely used metal material-Q235 was obtained,through the expe...