• Temperature field distribution of weldment, which reflects complex welding heat process, is a basic on studying welding deformation, residual stress and so on.

    焊件中的温度分布反映复杂焊接过程研究焊接变形、焊后残余应力等状况的基础

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  • Results show that distribution regularity of residual stress of in-service keeps coherent with routine welding, which measures up deformation mechanism of welding, but numeric value is different.

    结果表明:在焊接接头残余应力分布规律常规焊接保持一致,符合管道焊接接头“内凸外凹”变形机理数值差别较大。

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  • The stress distribution and the stress concentration factor in the welding region of tubular TT-joints subjected to axial loads are analyzed using finite element method in this study.

    本文首先通过有限元分析得到了力作用下TT管节点焊接区的应力分布以及应力集中系数

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  • Affected by the geometry of box-section, the residual stress distribution of plate with welding passes is different from that of another plate.

    截面本身几何形状所影响,箱截面焊缝侧壁板与另一侧壁板残余应力分布及大小有明显的不同

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  • The paper introduces the test of welding residual stress in weldment of constructional machinery and its distribution law.

    通过测试工程机械结构件焊接残余应力,分析分布特点;

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  • Die stress analysis results show that the deformation of the die core increases with welding chamber height. For the stress distribution, there exists a best welding chamber height.

    模具变形分析结果表明随着深度增加变形程度增大,应力分布来说,存在一个最佳的焊合室深度。

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  • Welding the weld which suffers more stress first, which will make the stress has reasonable distribution.

    工件受力较大的焊缝,使内应力合理分布。

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  • The measurement of residual stress of electron beam welding need to expend great cost, so it is important to numerically simulate the value and distribution of welding residual stresses.

    电子束焊接残余应力实测需要花费大量成本因此采用数值模拟其焊接残余应力的大小分布具有重要意义

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  • In this paper, the welding problem of two half-planes with anisotropic media is considered. By means of the complex variable method, the stress distribution is given in closed forms.

    本文利用函数方法研究了两个各向异性半平面焊接问题得到了应力分布封闭形式解

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  • The studying results indicate that the magnitude and distribution of residual stress are related to the heat input created by welding process and to the cross section geometry.

    分析结果表明,厚板焊接工形截面残余应力大小分布,除了焊接输入热量有关外,尚与截面几何尺寸有关。

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  • By increasing the weld heat input, the distribution of martensite becomes more dispersive and glomerate due to the molten pool stiring, the welding stress and the burning loss of alloy elements.

    随着焊接输入增加,由于搅拌焊接应力合金元素烧损等原因,马氏体分布更加散乱密集

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  • The experimental on residual stress of welding joints indicates that the longitudinal residual stress distribution can be obtained.

    方法应用实际焊缝应力测量取得了良好效果。

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  • The reasons for different mode of welding residual stress distribution and influence of flame curving on steel structure are discussed.

    简要阐明了造成不同焊缝应力分布原因工校弯成形工艺构件残余应力分布的影响

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  • Cold-formed steel cross section on the residual stress distribution is curved, and hot rolling steel or steel section on welding residual stress distribution is a thin film type.

    冷弯薄壁型钢截面残余应力分布弯曲型的,型钢焊接型钢截面上残余应力分布是薄膜

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  • The frame material and the welding procedure can be set according to the pre-judgement carried out by combining the CAE analysis with the residual stress distribution before welding.

    进行跑车试验,先检查焊接质量,如焊接接头包括焊缝熔合热影响区等,以设定整个工艺流程

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  • Temperature distribution and stress variation of welding are achieved and the results are discussed properly.

    获得焊接温度应力场动态变化过程,并分析了计算结果。

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  • In this paper the effect of strength matching of welded joint on welding residual stress distribution in plate welded joints was studied by an thermal elastoplastic finite element method.

    采用塑性有限元方法,对平板对接接头中焊缝金属强度组配焊接残余应力分布影响进行了研究。结果表明,对于高组配接头,纵向残余应力的峰值接近焊缝金属的屈服极限,出现焊缝中心。

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  • The stress and strain distribution and evolution during pore deformation are analyzed and various factors influencing the pore closure and welding are examined.

    基于数值模拟结果 ,分析了影响空洞闭合的主要因素及其影响规律 ,构造了考虑各种影响因素在内的锻合压下率计算公式。

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  • The stress and strain distribution and evolution during pore deformation are analyzed and various factors influencing the pore closure and welding are examined.

    基于数值模拟结果 ,分析了影响空洞闭合的主要因素及其影响规律 ,构造了考虑各种影响因素在内的锻合压下率计算公式。

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