Acta Mechanica Solida Sinica

, Volume 31, Issue 3, pp 357–368 | Cite as

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

  • Peishi Yu
  • Jinjie Lv
  • Junhua Zhao


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.


Dynamic fracture Finite element Full-scale pipeline Cohesive zone model 

List of symbols


Battelle two-curve model, see Eq. (1)


Crack-tip-opening angle


Charpy vee-notched


Cohesive zone model


Drop-weight tear test


Finite element


Traction–separation law


The fracture velocity, see Eq. (1)

\(\alpha \)

Exponent in traction–separation law, see Eq. (2)

\(\beta \)

Power exponent, see Eq. (2)

\(\eta \)

The coefficient, see Eq. (2)

\(\sigma _{\mathrm{y}}\)

Tensile yielding stress

\(\delta \)

Separation in cohesive zone, see Eq. (1)

\(\delta _{\mathrm{0}}\), \(\delta _{\mathrm{max}}\)

Separation corresponding to the maximum traction and the maximum damage, see Eq. (2)

\({\dot{\delta }}\)

The separation rate, see Eq. (2)

\({\dot{\delta }}_{\mathrm{r}} \)

A reference value of separation rate in the dimension of m/s, see Eq. (2)

\(\bar{{\sigma }}\)

The equivalent stress, see Eq. (3)

\(\bar{{\varepsilon }}^{\mathrm{p}}\)

The equivalent plastic strain, see Eq. (3)

\(\bar{{\varepsilon }}_{\mathrm{r}} \)

The reference strain, see Eq. (3)

\(\dot{\bar{{\varepsilon }}}^{\mathrm{p}}\)

The equivalent plastic strain rate, see Eq. (3)

\(\dot{\bar{{\varepsilon }}}_{\mathrm{r}} \)

The reference strain rate, see Eq. (3)



We gratefully acknowledge support from the National Natural Science Foundation of China (Grant No.11302067, 11572140, 11302084), the Fundamental Research Funds for the Central Universities (Grant Nos. JUSRP115A09, JUSRP115A10), the Programs of Innovation and Entrepreneurship of Jiangsu Province, Primary Research & Developement Plan of Jiangsu Province (Grant No. BE2017069), Science and Technology Plan Project of Wuxi, the Fundamental Research Funds for the Central Universities (Grant Nos. JUSRP11529 and JG2015059), Postgraduate Research & Practice Innovation Program of Jiangsu Province (Grant No. KYCX17_1473), the Undergraduate Innovation Training Program of Jiangnan University of China (Grant No. 2015151Y), the Undergraduate Innovation and Entrepreneurship Training Program of China (201610295057), the Research Fund of State Key Laboratory of Mechanics and Control of Mechanical Structures (NUAA) (Grant No. MCMS-0416G01), “Project of Jiangsu provincial Six Talent Peaks” in Jiangsu Province and “Thousand Youth Talents Plan.”


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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2018

Authors and Affiliations

  1. 1.Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, School of Mechanical EngineeringJiangnan UniversityWuxiChina

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