nominal stress–strain diagramtensile testtrue straintrue stressyield point phenomenonSeemingly a simple task, the extraction of the flow curve (true stress vs. true plastic strain) from nominal stresses and strains in standard tensile testing still has its unsolved points. This study addresses two ...
However, the strain gauges should be affixed exterior the stress concentration region of the welded joint in order to disregard the stress field resulting from the structural component's discontinuities [84]. Sign in to download hi-res image Fig. 20. Nominal stress in a beam member [84]. A...
the as-molded materials), the material strain softens: the nominal stress drop occurs just past the yield point due to the failure and disconnection of the lamellas and remains stationary while the tie molecules are pulled out from the fragmented lamella and become part of the amorphous layers....
nominal fracture strain标称破裂应变 on the strain处于紧张状态,紧张地 at the strain处于紧张状态,紧张地 strain atv. 紧拉,紧拖 nominal plaintiff名义上的原告,名义上原告,名义原告 strain drainstrain drain (由 brain drain 衍生而来) 由于工作压力太大而导致的人才流失, 人才外流 ...
The life prediction methods of notched specimen are reviewed,especially on nominal stress approach,local stress-strain method and stress field intensity approach. 概述了含缺口构件疲劳寿命预测方法,重点介绍了名义应力法、局部应力-应变法和应力场强法,总结了这些方法预测含缺口构件疲劳寿命的原理、应用方法、适...
The life prediction methods of notched specimen are reviewed,especially on nominal stress approach,local stress-strain method and stress field intensity approach. 概述了含缺口构件疲劳寿命预测方法,重点介绍了名义应力法、局部应力-应变法和应力场强法,总结了这些方法预测含缺口构件疲劳寿命的原理、应用方法、适...
3.The conclusion showed that local stress-strain method is more accurate and reliable than nominal stress method and we used the example to prove the correctness of the conclusion.评述了两种估算方法的估算步骤和特点,对两种方法在疲劳估算寿命的可靠性上做了一个简单的比较,对比结果表明:局部应力应变法比...
From the instantaneous area, A, and length, l, of a small volume element one can define the true stress, σ=F/A, and the local logarithmic strain, ε=ln(l/l0). A related refinement is feedback control that assures a constant strain rate, ɛ.=dε/dt, in the region of interest ...
nominal fracture stress 标称破裂应力 nominal stress 名义应力,公称应力,标称应力 fracture stress 断裂应力 stress fracture 应力性骨折 nominal fracture strain 标称破裂应变 nominal compression stress 标称压缩应力 nominal yield stress 名义屈服应力 nominal tensile stress 标称拉应力 nominal shearing stre...
Assuming such simplified strain state of each process, the locked in stress induced by cold forming was analized by the mathematical theory of plasticity. Prandtl-Reuss equation was used to the stress-strain relationship of the steel material in plastic range. And isotropic hardening and independent...