The engineering stress-strain curve does not give a true indication of the deformation characteristics of a metal because it is based entirely on the original dimensions of the specimen, and these dimensions change continuously during the test. Also, ductile metal which is pulled in tension becomes...
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...
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....
...验的 试片摆置方式 第七章机械性质 54 7.7 真应力和应变(True Stress and Strain) 由图7.11 可知,当应力通过最大值M点后, …www.docin.com|基于2个网页 2. 真实应力应变 ... U f ≒U r 7.7 7.7 真实应力应变 真实应力应变(true stress and strain) (true stress and strain) 真实应力: – F...
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 ...
True stress curve vs nominal stress curve Now that you know both types of stress, the question arises why do we need them, and where do we use them? In simple terms, the engineering stress-strain data is based upon an unchanged reference, i.e., the undeformed cross-sectional area. In ...
True stress–strain curves for cold worked stainless steel were obtained over a range of strains that included a large strain exceeding the strain for the tensile strength (post-necking strain). A specified testing method was used to obtain the stress–strain curves in air at room temperature. ...
网络真应力应变曲线;真实应力-应变 网络释义
Abstract of the true stress-strain tension test its role in modern materials testingdoi:10.1016/S0016-0032(44)91162-2C.W. MacGregorElsevier LtdJournal of the Franklin Institute