Finite Element Simulations of Dynamic Fracture of Full-Scale Gas Transmission Pipelines

被引：3
|
作者：
Yu, Peishi [1 ]
Lv, Jinjie [1 ]
Zhao, Junhua [1 ]
机构：
[1] Jiangnan Univ, Sch Mech Engn, Jiangsu Key Lab Adv Food Mfg Equipment & Technol, Wuxi 214122, Peoples R China
来源：
ACTA MECHANICA SOLIDA SINICA | 2018年 / 31卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Dynamic fracture; Finite element; Full-scale pipeline; Cohesive zone model; DUCTILE CRACK-GROWTH; LINE-PIPE STEELS; VOID NUCLEATION; MODEL; PROPAGATION; PARAMETERS; TOUGHNESS; BEHAVIOR; SOLIDS; ENERGY;
D O I：
10.1007/s10338-018-0017-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The dynamic crack growth in a full-scale gas pipeline of API X80 steel is analyzed using the finite element method with the cohesive zone model. Based on the simulation, it is revealed that for the moderate steady-state crack growth, the crack-tip-opening angle strongly depends on the crack growth speed. In addition, the threshold initial crack sizes under different internal pressures are analyzed, which show a significant three-dimensional effect due to the wall thickness of the pipeline. The presented model offers a feasible way to study some details of the dynamic fracture of full-scale pipelines when tests are difficult or expensive.
引用
收藏
页码：357 / 368
页数：12
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