Based on maximum load CTOD, the resistance to initiation fracture at different temperatures for base material and butt fusion welding joint of PE pipe were tested, compared and analyzed.

• 以最大荷载CTOD为基础,对聚乙烯管道的母材及其热熔对接焊接头在不同温度下的抗开裂性能进行了测试、比较和分析。