There is significant closure in welded specimen due to the effect of welding residual stress.
在焊接试件中有显著的裂纹闭合现象，其原因是焊接残余应力的作用。
The fatigue performances of welded specimen of tubular joints are tested at low temperature and normal temperature.
通过管节点模型试样的低温和常温疲劳试验，得出了低温环境对试样疲劳s - N曲线的影响系数。
Crack closure of base metal is caused by the residual plastic plastic deformation remaining in the wake of an advancing crack tip and is not as significant as in welded specimen.
而在管线钢基材中裂纹闭合现象较小，闭合原因是裂纹尖端尾部的残余塑性变形。
The longitudinal tension PM specimen of Tailor Welded Blanks of 5A02 and 5A06 were all fractured on the thinner base metal, which indicated that welds were eligibility.
添粉和不添粉的5A02和5A06铝合金拼焊板的横向拉伸试件均断裂于薄板母材，证明焊缝的强度合格。
The stress intensity factors K1 of various position of welded joint were measured by single edge precracked tensile specimen.
用单边预裂纹拉伸试样测定了焊接接头各部位的应力强度因子K1值。
The effects of strength mis-matching and specimen geometry on the resistance behavior to ductile crack growth for welded joint were conducted by 3-D FE analysis considering the micro-plastic damage.
通过考虑材料微观塑性损伤，定量研究了焊接接头中强度匹配、试件几何形状对接头抗延性裂纹扩展行为的影响。
The effects of strength matching and specimen geometry on the fracture behavior for welded joint are conducted by 3-d fe analysis based on the local approach.
基于局部法定量研究了焊接接头中强度匹配、试样几何形式对接头断裂行为的影响。
The fatigue strength of the longitudinal fillet welded joint specimen treated by ultrasonic peening increases by about 173% and the fatigue lifetime prolonges by 32~70 times.
纵向角接接头超声冲击处理试件与原始焊态试件相比，疲劳强度提高1 73 %左右，疲劳寿命延长了3 2～ 70倍。
The fatigue strength of the longitudinal fillet welded joint specimen treated by ultrasonic peening increases by about 173% and the fatigue lifetime prolonges by 32~70 times.
纵向角接接头超声冲击处理试件与原始焊态试件相比，疲劳强度提高1 73 %左右，疲劳寿命延长了3 2～ 70倍。
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