Evolvement of longitudinal stress and residual stress field after welding are obtained.
得到了焊接过程中纵向应力的演变规律与焊后应力场的分布情况。
Evolvement process of longitudinal stress and residual stress field after welding are obtained.
得到了焊接过程中纵向应力的演变规律与焊后应力场的分布情况。
The material embrittlement and residual stress leads to the final brittle fracture of the ball roller.
材料的脆化及较大的应力导致压球辊最终的脆性断裂。
We get valuable results about the effect of the stress ratio and residual stress on fatigue crack growth.
在应力比，残余应力对疲劳裂纹扩展的影响方面获得了有价值的成果。
The cutting force and residual stress have considerable influence on the distortion of thin-walled parts.
加工过程中的切削力、残余应力将产生零件加工变形及加工误差。
Results showed that the fracture was caused by higher content of O2, a large amount of Cu2O and residual stress.
结果表明，氧含量超标，存在大量的脆性相氧化亚铜，且材料内部仍留有部分残余应力，是失效的主要原因。
Based on the analysis of crack and residual stress, mechanical property of Laser Rapid Forming sample is studied.
在裂纹和残余应力分析的基础上，研究激光快速成形件的力学性能。
The temperature field and residual stress field of unclosed hoop weld were obtained and the results were discussed.
获得了非封闭环焊缝焊接温度场和残余应力场，并对模拟结果进行了分析。
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。
The prediction and controlling of welding distortion and residual stress is still a very important project in the industry.
焊接变形和残余应力的预测和控制至今仍然是工业生产中需要解决的重要课题。
Temperature and residual stress fields of industrial pipe discontinuous and continuous butt welding was simulated by ABAQUS.
应用大型有限元分析软件ABAQUS，对工业管道间断焊与连续焊的温度场和残余应力场进行数值模拟。
All these lead to the model of the thermal elastic stress, thermal elastoplastic stress and residual stress based on some simplications.
在此基础上，建立了能反映整个激光加工过程的主要物理特征的热弹性应力、热弹塑性应力以及残余应力的简化模型。
The temperature field and residual stress field were obtained by using 3-D double-ellipsoidal heat source model to simulate welded process.
在模型中运用移动的三维双椭球体热源作为输入热源来模拟焊接过程，最终获得了焊接温度场和残余应力场。
Microstructure and residual stress of hydroxyapatite bioactive gradient coatings with different composition were studied by SEM, EDS and XRD.
采用SEM、EDS和XRD等测试手段研究不同组分羟基磷灰石基生物活性梯度涂层的显微结构和残余应力。
Temperature field and residual stress field of orthogonal structure under normal welding and in-service welding condition were simulated by FEM.
运用有限元方法对正交接管结构在常规焊接和在线焊接条件下的温度场和残余应力场进行了数值模拟。
Then the relationships between the numerous cracks and residual stress should be analyzed by testing the vessel systematically with X-Ray method.
用X射线法对该球罐进行了系统的残余应力测试，分析了大量裂纹与残余应力水平的关系。
Through the microstructure analysis and residual stress measurement on a quenching test-piece, the feasibility of the numerical simulation is proved.
通过对淬火试件进行金相组织分析和残余应力测量，验证了数值模拟的可行性。
A novel method for calculating Youngs modulus and residual stress of a MEMS film is proposed based on pull-in voltages of a set of fixed-fixed beams.
提出了一种利用静电作用下悬臂梁的吸合电压提取MEMS薄膜沿厚度方向的平均应力梯度及弹性模量的方法，该方法的关键在于实现悬臂梁吸合电压的快速、精确计算。
By virtue of modern metallograph analyse technology, the size of grain, hardness and residual stress of bevel gear by closed-die cold forging is studied.
借助现代冶金分析技术对闭塞冷锻行星齿轮的晶粒尺寸、硬度变化和残余应力分布规律进行了研究。
The best welding procedure. the mechanical property, the microstructure and residual stress level of tube-tubeplate welding joints were presented as well.
并对管子管板焊缝的力学行为、显微组织及应力进行了评论。
The temperature field and residual stress field of 3d single-layer welding and multi-layer welding were obtained, and the calculation results were discussed.
得到了三维单层焊和两层焊焊接温度场和残余应力场，并对计算结果进行分析。
The expressions of load, displacement, stress and residual stress distribution for hole cold_extrusion process are established by using elastic_plastic theory.
利用弹塑性理论建立了孔冷挤压的载荷、位移、应力以及残余应力分布表达式；
In casing production straightening determines the shape precision and residual stress in casing, which have strong influence on the collapse resistance of casing.
套管生产中，矫直工序决定了套管的形状精度和残余应力，对套管抗挤强度有很大影响。
To reflect the relationship between clamps and residual stress, finite element models with different clamping schemes were built and the clamping process was simulated.
为了揭示装夹方案对残余应力的影响，利用有限元技术模拟了工件加工过程中不同的装夹方案，并分析了模拟结果。
Basing on SYSWELD software, stress of in-service welding joint of X70 pipeline steel has been simulated, and residual stress of in-service was compared with routine welding.
采用SYSWELD焊接模拟软件对X70级管道在役焊接接头应力进行模拟，并将在役焊接残余应力与常规焊接进行对比。
In this paper, the influence of diamond tool sharpness on machined surface quality was studied from the viewpoints of the cutting force, surface roughness and residual stress.
本文从切削力、表面粗糙度、表面残余应力几个方面，研究了金刚石刀具刃口修锐度对切削表面质量的影响。
This paper presents a summary on studies of factors which influence the quality of finished parts based on permeability of fibrous preform, voids or dry spots and residual stress.
纤维预制体的渗透性、孔穴或干斑的形成、残余应力的形成是影响成品质量的三个主要方面，本文对研究中存在的问题，进行了总结和评述。
The welding deformation and residual stress during the procedure of the welding of the submarine's spherical stem bulkhead are a very important guideline on the submarine's safety.
潜艇球面艏端隔壁结构在工程焊接过程中产生的焊接变形及残余应力是关系到潜艇安全的重要指标。
The welding deformation and residual stress during the procedure of the welding of the submarine's spherical stem bulkhead are a very important guideline on the submarine's safety.
潜艇球面艏端隔壁结构在工程焊接过程中产生的焊接变形及残余应力是关系到潜艇安全的重要指标。
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