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Proceedings Papers

Tip Clearance Effect on Heat Transfer and Leakage Flows on the Shroud-Wall Surface in an Axial Flow Turbine

Masaya Kumada, Satoshi Iwata, Masakazu Obata, Osamu Watanabe
Proc. ASME. GT1992, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A017, June 1–4, 1992
Publisher: American Society of Mechanical Engineers
Paper No: 92-GT-200
https://doi.org/10.1115/92-GT-200
View Paper titled, Tip Clearance Effect on Heat Transfer and Leakage Flows on the Shroud-Wall Surface in an Axial Flow Turbine
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Topics: Axial flow, Clearances (Engineering), Heat transfer, Leakage flows, Turbines, Flow (Dynamics), Heat transfer coefficients, Blades, Rotors, Approximation
Proceedings Papers

Inelastic FE Analysis for J-Integral of Center-Cracked Plate in Creep-Fatigue Range

Madoka Funai, Osamu Watanabe, Akihiro Matsuda
Proc. ASME. PVP2014, Volume 6A: Materials and Fabrication, V06AT06A036, July 20–24, 2014
Publisher: American Society of Mechanical Engineers
Paper No: PVP2014-28605
https://doi.org/10.1115/PVP2014-28605
View Paper titled, Inelastic FE Analysis for J-Integral of Center-Cracked Plate in Creep-Fatigue Range
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Topics: Creep, Fatigue, Finite element analysis, Fracture (Materials), Damage, Fatigue cracks, Path integrals
Proceedings Papers

Manufacture Trial of Tensile and Compressive Creep Test Machine Both for Plate-Type Specimen and Round-Bar Specimen

Madoka Funai, Osamu Watanabe, Akihiro Matsuda
Proc. ASME. PVP2014, Volume 3: Design and Analysis, V003T03A102, July 20–24, 2014
Publisher: American Society of Mechanical Engineers
Paper No: PVP2014-28607
https://doi.org/10.1115/PVP2014-28607
View Paper titled, Manufacture Trial of Tensile and Compressive Creep Test Machine Both for Plate-Type Specimen and Round-Bar Specimen
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Topics: Creep, Machinery, Maintenance, Stiffness, Temperature
Proceedings Papers

Estimation of Crack Growth Rate by J-Integral Range for Type SUS304 Stainless Steel Plate in Creep-Fatigue Tests at High Temperature

Madoka Funai, Osamu Watanabe, Akihiro Matsuda
Proc. ASME. PVP2014, Volume 5: High-Pressure Technology; ASME NDE Division; 22nd Scavuzzo Student Paper Symposium and Competition, V005T11A020, July 20–24, 2014
Publisher: American Society of Mechanical Engineers
Paper No: PVP2014-28598
https://doi.org/10.1115/PVP2014-28598
View Paper titled, Estimation of Crack Growth Rate by J-Integral Range for Type SUS304 Stainless Steel Plate in Creep-Fatigue Tests at High Temperature
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Topics: Creep, Fatigue, Fracture (Materials), High temperature, Stainless steel, Cycles, Crack propagation, Stress concentration
Journal Articles

A Shape Parameterization Method Using Principal Component Analysis in Applications to Parametric Shape Optimization

Kazuo Yonekura, Osamu Watanabe
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research-Article
J. Mech. Des. December 2014, 136(12): 121401.
Paper No: MD-12-1607
https://doi.org/10.1115/1.4028273
Published Online: October 20, 2014
View Article titled, A Shape Parameterization Method Using Principal Component Analysis in Applications to Parametric Shape Optimization
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Topics: Shapes
Proceedings Papers

Film Cooling Hole Shape Optimization Using Proper Orthogonal Decomposition

Kozo Nita, Yoji Okita, Chiyuki Nakamata, Seiji Kubo, Kazuo Yonekura, Osamu Watanabe
Proc. ASME. GT2014, Volume 2B: Turbomachinery, V02BT39A046, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-27239
https://doi.org/10.1115/GT2014-27239
View Paper titled, Film Cooling Hole Shape Optimization Using Proper Orthogonal Decomposition
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Topics: Film cooling, Principal component analysis, Shape optimization, Shapes, Optimization, Computation, Computational fluid dynamics, Cooling, Design, Heat
Proceedings Papers

Development of Guideline for Prediction of Inelastic Strain for Creep-Fatigue Evaluation

Osamu Watanabe, Ken-ichi Kobayashi, Kyotada Nakamura
Proc. ASME. PVP2013, Volume 1A: Codes and Standards, V01AT01A051, July 14–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: PVP2013-97865
https://doi.org/10.1115/PVP2013-97865
View Paper titled, Development of Guideline for Prediction of Inelastic Strain for Creep-Fatigue Evaluation
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Topics: Creep, Fatigue, Design, Failure, High temperature, Inelastic analysis, Stress, Constitutive equations, Finite element analysis, Machinery
Proceedings Papers

Multiple Crack Extension and Temperature Effect of Perforated Plate in Elevated Temperature Fatigue Test

Keisuke Kinoshita, Yoshitaka Suzuki, Takuya Kumagai, Osamu Watanabe, Akihiro Matsuda
Proc. ASME. PVP2013, Volume 6A: Materials and Fabrication, V06AT06A074, July 14–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: PVP2013-97871
https://doi.org/10.1115/PVP2013-97871
View Paper titled, Multiple Crack Extension and Temperature Effect of Perforated Plate in Elevated Temperature Fatigue Test
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Topics: Fatigue testing, Fracture (Materials), Temperature, Cycles, Shear (Mechanics), Stress concentration, Crack propagation, Failure, Fatigue, Fatigue cracks
Proceedings Papers

Effect of Strain Amplitudes and Mean Strain Values on Fatigue Life at Elevated Temperature

Shin-ichi Watanabe, Koh-ichi Imamura, Osamu Watanabe, Akihiro Matsuda
Proc. ASME. PVP2013, Volume 6A: Materials and Fabrication, V06AT06A012, July 14–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: PVP2013-97867
https://doi.org/10.1115/PVP2013-97867
View Paper titled, Effect of Strain Amplitudes and Mean Strain Values on Fatigue Life at Elevated Temperature
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Topics: Fatigue life, Temperature, Fracture (Materials), Cycles, Stress, Chaos, Deflection, Displacement, Evaluation methods, Failure
Proceedings Papers

Effect of Strain Rate and Hold Time in Creep-Fatigue Test

Masakazu Kojima, Madoka Funai, Takashi Dozaki, Osamu Watanabe, Akihiro Matsuda
Proc. ASME. PVP2013, Volume 6A: Materials and Fabrication, V06AT06A039, July 14–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: PVP2013-97876
https://doi.org/10.1115/PVP2013-97876
View Paper titled, Effect of Strain Rate and Hold Time in Creep-Fatigue Test
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Topics: Creep, Fatigue, Fatigue testing, Fracture (Materials), Fracture (Process), Temperature
Proceedings Papers

J Integral in Elasto-Plasticity by Path Integral Method and Virtual Crack Extension Method in 2-Dimensional Problem

Kexin Chang, Yuki Ohmura, Osamu Watanabe, Akihiro Matsuda
Proc. ASME. PVP2013, Volume 6A: Materials and Fabrication, V06AT06A013, July 14–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: PVP2013-97870
https://doi.org/10.1115/PVP2013-97870
View Paper titled, J Integral in Elasto-Plasticity by Path Integral Method and Virtual Crack Extension Method in 2-Dimensional Problem
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Topics: Elastoplasticity, Fracture (Materials), Path integrals, Finite element analysis, Computational methods, Elastic analysis, Fatigue, Fatigue analysis, Finite element methods, Flat plates
Proceedings Papers

Crack Initiation/Propagation of Perforated Plate Under Displacement-Controlled Creep-Fatigue Test at Elevated Temperature

Osamu Watanabe, Taisuke Akiyama, Akihiro Matsuda
Proc. ASME. PVP2012, Volume 1: Codes and Standards, 231-239, July 15–19, 2012
Publisher: American Society of Mechanical Engineers
Paper No: PVP2012-78123
https://doi.org/10.1115/PVP2012-78123
View Paper titled, Crack Initiation/Propagation of Perforated Plate Under Displacement-Controlled Creep-Fatigue Test at Elevated Temperature
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Topics: Creep, Displacement, Fatigue, Fracture (Materials), Temperature, Stress concentration, Cycles, Fatigue testing, Stress
Proceedings Papers

Scanning Electron Microscope of Fatigue and Creep-Fatigue From Stress Concentrations in Plates

Osamu Watanabe, Marina Kikuchi, Akihiro Matsuda
Proc. ASME. PVP2012, Volume 6: Materials and Fabrication, Parts A and B, 19-27, July 15–19, 2012
Publisher: American Society of Mechanical Engineers
Paper No: PVP2012-78125
https://doi.org/10.1115/PVP2012-78125
View Paper titled, Scanning Electron Microscope of Fatigue and Creep-Fatigue From Stress Concentrations in Plates
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Topics: Creep, Fatigue, Plates (structures), Scanning electron microscopes, Stress, Fracture (Materials), Fatigue testing, High temperature, Crack propagation, Cycles
Proceedings Papers

Fatigue Test for Two-Holes Diagonally-Placed Plate at Elevated Temperature

Keisuke Kinoshita, Osamu Watanabe
Proc. ASME. PVP2012, Volume 9: Rudy Scavuzzo Student Paper Symposium and Competition, 37-44, July 15–19, 2012
Publisher: American Society of Mechanical Engineers
Paper No: PVP2012-78200
https://doi.org/10.1115/PVP2012-78200
View Paper titled, Fatigue Test for Two-Holes Diagonally-Placed Plate at Elevated Temperature
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Topics: Fatigue testing, Temperature, Cycles, Stress, Fracture (Materials), Finite element methods, Stress concentration, Crack propagation, Displacement, Failure
Proceedings Papers

Crack Initiation/Propagation of Perforated Plate Under Displacement-Controlled Fatigue Test at Elevated Temperature

Osamu Watanabe, Taisuke Akiyama, Akihiro Matsuda
Proc. ASME. PVP2011, Volume 1: Codes and Standards, 373-381, July 17–21, 2011
Publisher: American Society of Mechanical Engineers
Paper No: PVP2011-57478
https://doi.org/10.1115/PVP2011-57478
View Paper titled, Crack Initiation/Propagation of Perforated Plate Under Displacement-Controlled Fatigue Test at Elevated Temperature
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Topics: Displacement, Fatigue testing, Fracture (Materials), Temperature, Stress concentration, Cycles, Stress
Proceedings Papers

Determination of Material Constants of Internal Time Theory of Plasticity and Creep for Fatigue Analysis and Creep-Fatigue Analysis

Osamu Watanabe
Proc. ASME. PVP2011, Volume 3: Design and Analysis, 853-861, July 17–21, 2011
Publisher: American Society of Mechanical Engineers
Paper No: PVP2011-57477
https://doi.org/10.1115/PVP2011-57477
View Paper titled, Determination of Material Constants of Internal Time Theory of Plasticity and Creep for Fatigue Analysis and Creep-Fatigue Analysis
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Topics: Creep, Fatigue, Fatigue analysis, Plasticity, Finite element analysis, Constitutive equations, Boundary-value problems, Computers, Deformation, Geometry
Proceedings Papers

Stress Redistribution Locus of Perforated Plate Under Displacement-Controlled Loading, Force-Controlled Loading and Thermal Loading

Osamu Watanabe, Akihiro Matsuda
Proc. ASME. PVP2011, Volume 3: Design and Analysis, 889-896, July 17–21, 2011
Publisher: American Society of Mechanical Engineers
Paper No: PVP2011-57916
https://doi.org/10.1115/PVP2011-57916
View Paper titled, Stress Redistribution Locus of Perforated Plate Under Displacement-Controlled Loading, Force-Controlled Loading and Thermal Loading
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Topics: Displacement, Stress, Fatigue strength, Creep, Fatigue, Collapse, Deformation
Journal Articles

Stress and Strain Locus of Perforated Plate in Inelastic Deformation—Strain-Controlled Loading Case

Osamu Watanabe, Bopit Bubphachot, Akihiro Matsuda, Taisuke Akiyama
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Design And Analysis
J. Pressure Vessel Technol. June 2012, 134(3): 031207.
https://doi.org/10.1115/1.4005937
Published Online: May 18, 2012
View Article titled, Stress and Strain Locus of Perforated Plate in Inelastic Deformation—Strain-Controlled Loading Case
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Topics: Creep, Fatigue, Stress, Deformation
Journal Articles

Statistical Evaluation of Local Stress and Strain of Three Dimensional Polycrystalline Material at Elevated Temperature

Osamu Watanabe
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. February 2012, 134(1): 011208.
https://doi.org/10.1115/1.4004795
Published Online: December 2, 2011
View Article titled, Statistical Evaluation of Local Stress and Strain of Three Dimensional Polycrystalline Material at Elevated Temperature
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Topics: Creep, Crystals, Finite element methods, Plasticity, Stress, Stress concentration, Temperature, Anisotropy, Tensors, Aluminum
Journal Articles

Crack Initiation Process for Semicircular Notched Plate in Fatigue Test at Elevated Temperature

Bopit Bubphachot, Osamu Watanabe, Nobuchika Kawasaki, Naoto Kasahara
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research Papers
J. Pressure Vessel Technol. June 2011, 133(3): 031403.
https://doi.org/10.1115/1.4002539
Published Online: April 4, 2011
View Article titled, Crack Initiation Process for Semicircular Notched Plate in Fatigue Test at Elevated Temperature
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Topics: Cycles, Fatigue testing, Fracture (Materials), Stress, Temperature