通过对其拉延成型过程中,金属的应力应变的分析,提出了防皱措施。
Measures for avoiding wrinkle has been considered after analysing the stress and strain of metal during drawing process.
试验结果表明,焊缝金属具有比较好的塑性变形能力,焊缝的损伤值与材料的累积塑性应变呈线性关系。
The experimental results showed that weld metal had enough plastic deformation capacity, and its damage value was linear with the cumulative plastic strain.
金属在热成形过程中的微观组织演变是影响产品力学性能的关键因素,该演变过程取决于温度、应变和应变速率。
The microstructure evolution, which is governed by temperature, strain and strain rate during hot metal forming, is a key factor to the mechanical properties.
动态应变时效是在金属和合金中,移动着的溶质原子和运动中的位错发生交互作用时所出现的一种强化现象。
Dynamic Strain Aging (DSA) is a strengthening phenomenon in metals and alloys caused by the interaction between the diffusive solute atoms and the moving dislocation.
在跟踪金属质点位移轨迹的基础上,揭示了毛坯变形区各质点贴模位移与应变间的关系,从而明确提出了圆锥形件的成形机理。
The relation between the displacement of closing up to punch and strain for each metal particle in deformation region had shown by following the deformation trace of particle.
基于各向同性弹塑性损伤假定和应变等效假设,采用重复拉伸的试验方法,得到了焊缝金属的损伤演化规律。
Based on the adoption of elastoplastic damage theory and effective strain assumption, weld metal coupons were tested under repeated pull and their damage evolution law was determined.
基于应变叠加原理的基本思想。阐释了金属振动塑性加工平均应力减小的原因,给出了体积效应机理的数学描述。
Based on the strain superposition principle, the phenomenon of mean stress reduction in metals plastic processes with vibration is explicated. and the mechanism of volume effect is described.
韧性泡沫金属的屈服段应力随着应变的增加而缓慢增加;
The stress rises slowly with the increase of strain in the collapse region of ductile metal foams.
为了探索光纤智能金属结构中光纤布喇格光栅(FBG)的温度灵敏度,必须对温度变化时光纤智能结构中fBG所受的应力应变进行分析。
In order to explore the temperature sensitivity of fiber Bragg grating (FBG) in smart metal structure, the stress and strain of FBG under temperature variation must be analyzed.
绝热剪切是金属材料在高应变速率变形条件下常见的一种现象。
The adiabatic shearing phenomena were often found in metallic materials under high-strain, high-strain-rate deformation.
介绍了一种基于光纤布拉格光栅(FBG)应变敏感特性的金属锈蚀传感器。
By using the strain-sensitive characteristics of fiber Bragg gratings(FBG), a metal corrosion sensor is proposed and demonstrated in this paper.
分析了电子引伸计应变测量误差形成的主要原因,以及对金属材料拉伸试验强度测试的影响,介绍了引伸计使用中的一些经验和注意事项。
The main cause of error of strain measurement using electronic extensometer and its effects on the strength measurement in tensile tests of metallic materials was analyzed.
通过分析局部的应变集中或应力集中再加上金属变型能力模型,裂纹的发生和地点可以预见。
Through the analysis of the local strain concentration or stress concentration, together with the forming ability model, the occurrence and location of the crake can be predicted.
该方法提供了能力,使轴向,周向和离轴应变对冒口人体测量和金属复合材料的联合区域。
The method provides the capability to make axial, circumferential and off-axis strain measurements on the body of the riser and in the metal to composite joint region.
金属材料韧性的丧失可以通过核查低温时的应力—应变的关系观测。
The loss of metal toughness can be observed by checking stress - strain relations at low temperature.
揭示了半固态金属成形过程中应变率和变形量对液相偏析影响的规律。
The effects of strain rate and engineering strain on liquid phase segregation in the process of semi-solid metal forming have been revealed in this paper.
该技术将基于一个具有增强的高- k金属闸(HKMG平面工艺),新型应变硅,低电阻铜超低K互连。
The technology will be based on a planar process with enhanced high-K metal gate (HKMG), novel strained silicon, and low-resistance copper ultra-low-K interconnects.
分析了平面应变压缩过程中金属的非对称流动方式的进展以及产生原因。
The development and reason of asymmetric flow pattern during plane strain compression was analyzed.
金属材料在不同应变率下的真实应力应变曲线是汽车碰撞模拟的一个关键。
By scientific computing with the constitutive equation, the plate′s stress-strain curves at different strain rate are obtained.
金属箔式应变片是应变敏感元件,通过它转换被测部位受力状态变化,电桥完成电阻到电压的比例变化。
Metal foil strain wafer is a live strain component, through which the variation of lading condition is shifted. The resistance module can vary from resistance to voltage in proportion.
结果显示,变形区内横截面应变分布非常复杂,腹板和翼板间的金属交换在不同变形区域内发生方向变化。
The strain in the deformation zone distributes very complicatedly in cross section. The metal exchange between web and flange takes place in alternative direction as the deformation is in progress.
本文研究了几种常见金属材料屈服前的微应变过程。
The microstraining prior to yield of several common metallic mate-rials has been studied.
冷塑性变形金属释放其部分应变能的过程叫回复,通常采用热处理的方法。
The relief of some of the internal strain energy of a previously cold-worked metal, usually by heat treatment.
采用金属材料微元屈服极限随机分布模型,计算出每次循环产生的微观塑性应变,并与用单调拉伸试验确定的材料真实断裂延性联系起来。
Randomly distributed models of micro-plastic strains were used to calculate the micro-plastic deformation produced at each cycle of the steel under high cycle fatigue test.
金属材料发生塑性变形的阻力通常与加载的应变率有关。
The deformation resistance of most of the metallic materials is influenced by the strain rate.
基于优化后的工艺参数组合,进行再次模拟,分析金属的流动情况、应力应变及壁厚质量,确定最终的最优凸凹模结构。
Chose the most suitable process parameters to simulate once again, which analyzed the metal flow condition; stress and strain and quality of wall thickness.
实验结果表明:在拉伸过程中,同一试样中金属基体上和界面上的应变数值相同,符号相反。
The experimental result indicated that: in stretch process, in identical test specimen the strain value on metal substrate and contact surface are same, the mark is opposite.
实验结果表明:在拉伸过程中,同一试样中金属基体上和界面上的应变数值相同,符号相反。
The experimental result indicated that: in stretch process, in identical test specimen the strain value on metal substrate and contact surface are same, the mark is opposite.
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