丁字型焊接接头在焊接结构中用得很多,而在造船业中更被大量采用。实际工作指出,在交变载荷作用下的丁字型焊接接头,必须保证紧密连接和完全焊透。为此,我们曾就这种接头中未焊透对强度的影响进行了研究。一、焊接接头中力的分析过去对于在静载荷作用下的丁字型焊接接头强度研究得比较多,但对于在交变载荷作用下的接头振动 T-shaped welded joints in the welding structure used a lot, but in the shipbuilding industry is more widely used. The actual work shows that under alternating load T-shaped welded joints, must ensure tight connection and complete penetration. To this end, we have studied the impact of imperfections in such joints on strength. First, the analysis of welded joints in the past For static load under the T-shaped welded joints more strength, but for alternating load under the action of the joint vibration