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http://dx.doi.org/10.1016/j.net.2016.03.012

Numerical Ductile Tearing Simulation of Circumferential Cracked Pipe Tests under Dynamic Loading Conditions  

Nam, Hyun-Suk (Department of Mechanical Engineering, Korea University)
Kim, Ji-Soo (Department of Mechanical Engineering, Korea University)
Ryu, Ho-Wan (Department of Mechanical Engineering, Korea University)
Kim, Yun-Jae (Department of Mechanical Engineering, Korea University)
Kim, Jin-Weon (Department of Nuclear Engineering, Chosun University)
Publication Information
Nuclear Engineering and Technology / v.48, no.5, 2016 , pp. 1252-1263 More about this Journal
Abstract
This paper presents a numerical method to simulate ductile tearing in cracked components under high strain rates using finite element damage analysis. The strain rate dependence on tensile properties and multiaxial fracture strain is characterized by the model developed by Johnson and Cook. The damage model is then defined based on the ductility exhaustion concept using the strain rate dependent multiaxial fracture strain concept. The proposed model is applied to simulate previously published three cracked pipe bending test results under two different test speed conditions. Simulated results show overall good agreement with experimental results.
Keywords
Ductile fracture; Finite element damage analysis; High strain rate condition; Multiaxial fracture strain locus;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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