stress hardening

The validity of unified hardening parameter H on describing the stress-strain properties of sands was confirmed by the triaxial test data of saturated sand from Taklamakan desert.

通过饱和塔克拉玛干沙漠砂的三轴试验结果，表明了H在描述砂土应力应变特性上的适用性。

互联网摘选

The pipeline steel with strain-based design is usually characterized by high initial work hardening rate, good ductility, and low yield stress to tensile strength ratio.

抗大变形管线钢就是基于应变设计的方法得到的具有连续屈服、较低的屈强比、较高的加工硬化指数以及均匀塑性变形延伸率等特性的管线钢。

互联网摘选

Based on the test results of sand, mechanics of internal parameters ( plastic volumetric strain and plastic deviator strain) depending on stress path is explained. General equation expressing hardening parameter independent of stress path is proposed.

在分析砂土试验结果的基础上，揭示了基本硬化内参量（塑性体积应变、塑性剪应变）变化的应力路径相关性，提出了应力路径无关硬化参量的一般表达式。

互联网摘选

The width and depth of laser transformation hardening zone and residual stress distribution were measured experimentally.

实测了激光相变硬化区的宽度和深度及残余应力分布.

互联网摘选

A geometric representation and equation of isotropic strain-hardening in a three-dimensional stress space

应力空间内强化方程与其几何描述

互联网摘选

Tenacity and abrasively of high-intensity alloy steel body strengthened by balanced hardening treatment and stress removal.

高强度合金钢本体，经均衡之硬化处理及应力消除，强化本体韧性及耐磨性。

互联网摘选

The effects of strain and stress rates, hold time and loading chart on cyclic softening/ hardening feature and ratcheting were discussed.

讨论了材料在不同加载速率，不同保持时间和不同加载波形下的循环软／硬化行为和棘轮行为特征。

互联网摘选

Study the thermal stress in case hardening process of gear by Photoelasticity

光弹法研究齿轮表面淬火过程的热应力

互联网摘选

The amplitude of crack-tip stress field decreases when the coefficient of hardening becomes bigger, and increases when viscosity increases.

裂尖场应力和塑性应变幅值随材料硬化增强而减小，随粘性增强而增大。

互联网摘选

TEM morphology of the twin specimens at stress plateau stage and martensite section at hardening stage has been observed.

观察到高应变率时应力平台与硬化阶段的TEM组织形貌分别为孪晶与断续的马氏体。

互联网摘选