The experimental results showed that weld metal had enough plastic deformation capacity, and its damage value was linear with the cumulative plastic strain.
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 plastic flow and the variation of the strain field in welds caused by impact rollers were analyzed numerically to study the effect of weld with trailing impact rolling (WTIR).
为了解随焊冲击碾压法机理，用数值计算方法对冲击碾压轮引起薄壁结构焊缝金属塑性流变行为和应变场变化进行了分析。
The strain mode based approach to identify weld damage in members of steel structure automatically is demonstrated in present paper.
研究了基于应变模态的钢结构构件焊缝损伤的自动识别方法。
The front impact roller causes transverse plastic compression strain in the weld which is in the brittle temperature range, which counteracts the tensile strain which leads to hot cracking.
前轮对处于脆性温度区间的焊缝金属施加一个横向挤压塑性应变，减小甚至抵消致裂的拉伸应变，防止了焊接热裂纹的产生。
A new large heat input welding high strength low alloy steel with low susceptivity to weld cold cracking was developed and the cold strain aging behavior was investigated.
研制了一种低焊接裂纹敏感性高能量输入焊接用低合金高强钢，并研究了其冷应变时效行为。
In this paper, the problems on compressive plastic deformation in the weld and the principle of welding stress and strain described by d.
讨论了焊缝是否存在压缩塑性变形问题和拉达伊d应力应变原理图存在的问题。
The temperature field of welding workpiece determines the stress field and strain field, and it is also the main factor affecting the weld quality and production rate.
焊接工件的温度场决定了焊接应力场和应变场，是影响焊接质量和生产率的主要因素。
Buckling of thin plate due to butt weld was investigated using inherent strain method as an equivalent load.
提出了基于固有应变对接薄板失稳分析的基本方程。
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。
In this paper, buckling of thin plate due to butt weld is investigated using inherent strain method as an equivalent load.
提出了基于固有应变对接薄板失稳分析的基本方程。
This paper has simulated the driving force of solidification crack of stainless steels, namely the, stress strain field in the trail of molten weld pool.
对不锈钢凝固裂纹的驱动力即熔池尾部应变场进行了模拟。
Weld shrinkage-induced local strain to yield point strain often several times, than the strain due to the load is much larger;
焊缝收缩诱发的局部应变时常达到屈服点应变的数倍，比荷载引起的应变大得多；
Weld-seam position and thickness difference do not affect stress and strain states.
焊缝位置和壁厚差异变化时，拼焊管各区域的应力状态保持不变。
The approaches to identify and locate weld damage in members of steel structure are discussed by using strain mode in this paper.
本文主要采用神经网络方法，依据结构的应变模态理论，对钢结构构件的焊缝损伤的自动识别问题进行了综合的研究。
Stress-strain tests show that: the weld residual stress and the fusion zone is relatively concentrated, the residual stress of the heat affected zone is relatively small.
应力应变测试表明：焊缝与熔合区是残余应力比较集中的地方，热影响区的残余应力比较小。
The experiment result shows that the strain affected by microcrack which was composed of weld 1ine seriously.
试验表明，熔接痕形成的微裂纹对制品应变值的影响较大；
Welding does not occur after pores, collapse, thermal strain and microstructure changes and so on. Significantly reduce post -weld treatment process.
激光焊点直径小、受热范围小，焊后不会出现气孔、塌陷、热应变及金相组织变化等现象，极大减小焊后处理工序。
Welding does not occur after pores, collapse, thermal strain and microstructure changes and so on. Significantly reduce post -weld treatment process.
激光焊点直径小、受热范围小，焊后不会出现气孔、塌陷、热应变及金相组织变化等现象，极大减小焊后处理工序。
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