Jwo Pan
University of Michigan
Spot weldingIrradiationFatigue limitFinite element methodComposite materialCompression (physics)MetallurgyMaterials scienceWeldingTension (physics)Plane stressZr 2 5nbFracture (geology)AluminiumLaserStress intensity factorFracture mechanicsFailure mode and effects analysisStructural engineeringPlasticityShear (sheet metal)Stress (mechanics)Shear (geology)
131Publications
15H-index
939Citations
Publications 125
Newest
#1Shengjia Wu (UM: University of Michigan)H-Index: 1
#2Jwo Pan (UM: University of Michigan)H-Index: 15
Last. Michael J. Morgan (SRNL: Savannah River National Laboratory)H-Index: 7
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Abstract Crack extensions in uncharged and hydrogen-charged side-grooved A(T) specimens of conventionally forged 21-6-9 austenitic stainless steels are simulated using the cohesive zone modeling approach. Two-dimensional plane strain finite element analyses with fixed cohesive parameters are first conducted to fit the experimental load-displacement curves. Similar analyses using varying cohesive parameters as functions of the crack extension are then conducted to fit the experimental load-crack ...
Source
#1Shengjia Wu (UM: University of Michigan)H-Index: 1
#2Jwo Pan (UM: University of Michigan)H-Index: 15
Last. Michael J. Morgan (SRNL: Savannah River National Laboratory)H-Index: 7
view all 4 authors...
1 CitationsSource
#1Shin Jang Sung (UM: University of Michigan)H-Index: 5
#2Jwo Pan (UM: University of Michigan)H-Index: 15
Source
#1Shin Jang Sung (UM: University of Michigan)H-Index: 5
#2Jwo Pan (UM: University of Michigan)H-Index: 15
Last. Douglas A. ScarthH-Index: 2
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Abstract A cohesive zone modeling (CZM) approach is adopted to model crack extensions in as-received and hydrided curved compact tension (CCT) specimens of irradiated Zr-2.5Nb pressure tube materials at room temperature. With the CZM approach, two-dimensional finite element analyses are conducted to model the crack extensions in the CCT specimens. A varying cohesive energy approach is adopted, where the varying cohesive energy is determined based on the experimental J-R curves. The two-dimension...
1 CitationsSource
#1Shengjia Wu (UM: University of Michigan)H-Index: 1
#2Jwo Pan (UM: University of Michigan)H-Index: 15
Last. Sterling St LawrenceH-Index: 3
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Source
#1Shin Jang Sung (UM: University of Michigan)H-Index: 5
#2Jwo Pan (UM: University of Michigan)H-Index: 15
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Source
#1Eui Seop Kim (UM: University of Michigan)
#2Shin Jang Sung (UM: University of Michigan)H-Index: 5
Last. Jwo PanH-Index: 15
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Source
#1Shin Jang Sung (UM: University of Michigan)H-Index: 5
#2Jwo Pan (UM: University of Michigan)H-Index: 15
Last. Douglas A. ScarthH-Index: 2
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Abstract The effects of curvature on K, J, plastic zone, near-tip stress and fracture initiation in curved compact tension (CCT) specimens of unhydrided and hydrided irradiated Zr-2.5Nb materials are determined by three-dimensional finite element analyses. Based on a strain-based failure criterion, the fracture initiation load for unhydrided CCT specimens is slightly lower than those for unhydrided compact tension (CT) and pressure tube (PT) specimens. For hydrided specimens, the reductions of f...
1 CitationsSource
#1Shin Jang Sung (UM: University of Michigan)H-Index: 5
#2Jwo Pan (UM: University of Michigan)H-Index: 15
Last. Anthony McWillliams (SRNL: Savannah River National Laboratory)H-Index: 1
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Abstract Fracture tests of uncharged and hydrogen-charged single edge bend specimens of additively manufactured 304 stainless steels are simulated using the cohesive zone modeling (CZM) approach. Two-dimensional plane strain finite element analyses without cohesive elements are conducted to identify the values of cohesive energy. Similar analyses using CZM with the trapezoidal traction-separation laws are then conducted. The best-fit cohesive parameters show the values of cohesive strength for t...
6 CitationsSource
#1Shengjia Wu (UM: University of Michigan)H-Index: 1
#2Shin Jang Sung (UM: University of Michigan)H-Index: 5
Last. Paul S. Korinko (SRNL: Savannah River National Laboratory)H-Index: 7
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4 CitationsSource