TY - Front. Struct. Civ. Eng. A1 - Wuchao YANG, Xudong QIAN T1 - Ductile extension of 3-D external circumferential cracks in pipe structures Y1 - 2011-09-05 JF - Frontiers of Structural and Civil Engineering JO - Front. Struct. Civ. Eng. SP - 294 EP - 303 VL - 5 IS - 3 UR - https://journal.hep.com.cn/fsce N1 - 10.1007/s11709-011-0115-9 ER -