strain crack;strain cracking

Meso-mechanical analysis has been conducted with finite element for a hot-rolled steel of 16MnR to investigate the effect of the elongated pre-damage voids on the subsequent damage evolution and fracture process under multidirectional maximum normal stresses.

结果表明:热轧钢中的长条形夹杂物与基体剥离后形成的长条形孔洞在后续加载中,其周围产生的局部高应力应变集中及其相互作用使孔洞长大。

It analyses the strain and the stress in drawing, the existing questions of drawing technology at present, the critical condition of losing stability, the effect on products' quality and drawing die, and the status of the remaining strain.

　比较了不锈钢产品与普通低碳钢产品在拉深过程中的异同,分析了产品成形过程的应力应变状态、现行拉深工艺存在的问题、不锈钢薄板拉深失稳的临界条件以及失稳起皱对拉深件质量和模具的影响和拉深件的残余应力状态。

In order to determine the optimal shape of interchamber pillars,seven models are established using finite element numerical simulation technique to study the influence of different orebody dip angles and different intersection angles between the normal lines of pillar wall and ore bed on pillar strain and stress.

本文采用有限元数值模拟技术，建立了七种模型，计算分析了不同矿体倾角及矿柱壁面与矿层面法线夹角的变化对矿柱应力应变状态的影响，从而确定出最佳的矿柱形状。

Effect of strain on the electrical resistance of continuous carbon fiber monofilament;

连续碳纤维单丝的应变电阻效应

Research on the stress and strain evolution of aluminum alloy hot forging die;

铝合金热锻模具结构中的应力应变演变过程分析

Analysis on Stress and Strain Behavior of Spherical Vessel of Functionally Graded Material under Creep Condition;

蠕变条件下梯度材料球罐应力应变行为分析

Analog computation of the deformation of continuously casted bloom in secondary cooling zone;

连铸大方坯二次冷却区域两相界应变的模拟计算

When the burring process of 12×4J wheel is processed taking the deformation area as the plane stress condition,the deformation characteristics of normal and radius directions are studied,which is influenced by the factors such as height and the inner hole initial radius and the deformation law of circle strain.

利用斜冲模对12×4J轮辐进行翻边时,将变形区看做是平面应力状态,探讨了翻边高度、初始孔径及斜冲模角对翻边变形区径向应变和轴向应变的影响,对12×4J轮辐翻边不同斜冲模角下的冲压力变化规律进行了计算。

It focuses on demonstrating special characteristic of prestress and inside dint of the concrete;At the same time,the stress and deformation to the beam construction is examined.

针对东海大桥主跨420 m的钢混凝土箱形结合梁斜拉桥中一片主梁进行了工艺试验研究,分析了混凝土的预应力和内力均在变化的特殊性;同时,对结构的应力、应变进行了检测。