【摘要】 本文用弹塑性有限元的方法对16MnR母材及焊接热影响区和焊缝组合的对接焊接接头中裂纹做了大量J积分计算,对16MnR材料及其焊接接头中裂纹的失效评定曲线进行了研究,探讨了焊缝和焊接热影响区对失效评定曲线的影响,提出了焊缝区裂纹可采用的工程失效评定曲线制订方法。更多还原

【Abstract】 This paper presented the J-intergral calculation for cracks in 16MnR butt weld joint, inclu-ding heat affected Zone, weld metai as wall as base metai by elasto-plastic finite element method. Besides the failure assessment curves were also studied. Moreover an engineering fracture assess-ment of welded joints crack has been provided.更多还原