Characteristics of Brittle Fracture Under Bi-axial Tensile Load (2nd Report)(Welding Mechanics, Strength & Design)
スポンサーリンク
概要
- 論文の詳細を見る
In the previous report the brittle fracture initiation characteristics of plate subjected to bi-axial tensile load was investigated on the cruciform specimen of PMMA (polymethylmethacrylate) and SM41 (mild steel), each of which containes an inclined notch. The former specimens fractured in a perfectly brittle manner at room temperature. For the latter specimens, the test temperature was so selected that the fracture occures in a brittle manner with small scale yielding. In both cases, the fracture stress and the direction of initial crack propagation were well predicted by the criteria based on either maximum tangential stress, ^σθ, max, or maximum energy release rate ^Gθ, max. In this report the brittle fracture initiation characteristics with large scale yielding is investigated. A series of fracture tests is conducted on the cruciform specimens of SM41 under bi-axial tensile load, of which load ratios are 0/1, 1/2 and 1/1. Elastic plastic stress analysis is also carried out using the finite element method. The results obtained by the experiments and the finite element analysis lead to the following conclusions. (1) The direction of fracture initiation is nearly normal to the vector of crack opening displacement (COD) near the tip of notch obtained by the finite element analysis. (2) Brittle fracture stress under mixed mode conditions may be conservatively predicted by the critical COD for the opening mode fracture as the application of COD-concept.
- 大阪大学の論文
著者
-
UEDA Yukio
Osaka University
-
Aoki Mitsuru
Structural Engineering Laboratory Kobe Steel Ltd.
-
Ikeda Kazuo
Mechanical Engineering Research Laboratory Kobe Steel Ltd.
-
Yao Tetsuya
Faculty Of Engineering Hiroshima University
-
Yao Tetsuya
Osaka University
-
IKEDA Kazuo
Structural Engineering Laboratory, Kobe Steel, Ltd.
-
SHIBASAKI Shunichi
Osaka University
-
SHIRAKURA Takao
Structural Engineering Laboratory, Kobe Steel, Ltd.
-
Shibasaki Shunichi
Osaka University:(present Office)toyota Automobile Ltd.
-
Shirakura Takao
Structural Engineering Laboratory Kobe Steel Ltd.
-
Ikeda Kazuo
Structural Engineering Laboratory Kobe Steel Ltd.
関連論文
- On Buckling Accepted Design of Ship Structures Utilizing High Tensile Steels(Mechanics, Strength & Structural Design)
- An Improved ISUM Rectangular Plate Element : Taking Account of Post-Ultimate Strength Behavior(Mechanics, Strength & Structural Design)
- 1972-1973 Literature Survey on Welding Stresses and Strains in Japan
- Development of Computer Aided Process Planning System for Plate Bending by Line-Heating (Report IV) : Decision Making on Heating Conditions, Location and Direction(Mechanics, Strength & Structural Design)
- Development of Computer Aided Process Planning System for Plate Bending by Line-Heating (Report III) : Relation between Heating Condition and Deformation(Mechanics, Strength & Structural Design)
- Development of Computer Aided Process Planning System for Plate Bending by Line-Heating (Report II) : Practice for Plate Bending in Shipyard Viewed from Aspect of Inherent Strain(Mechanics, Strength & Structural Design)
- Development of Computer Aided Process Planning System for Plate Bending by Line Heating (Report I) : Relation between the Final Form of Plate and the Inherent Strain(Machanics, Strength & Structural Design)
- 4. On the Local Buckling Strength of a Super Tanker : Buckling Strength of Web Plates with Cut-outs for Longitudinals
- Three Dimensional Numerical Simulation of Various Thermo-mechanical Processes by FEM (Report IV) : Deformation Analysis of Pipe-Plate Joint with Holes by Multi-pass Welding(Mechanics, Strength & Structural Design)
- Three Dimensional Numerical Simulation of Various Thermo-mechanical Processes by FEM (Report III) : Deformation Analysis of Compressors under Assembly by Plug Welding(Mechanics, Strength & Structural Design)
- Three Dimensional Numerical Simulation of Various Thermo-mechanical Processes by FEM (Report II) : Deformation Analysis of Compressor under Assembly by Shrinkage Fit(Mechanics, Strength & Structural Design)
- Three Dimensional Numerical Simulation of Various Thermo-mechanical Processes by FEM (Report I) : Methods for Improving the convergence of 3-D Analysis of Welding(Mechanics, Strength & Structural Design)
- A Predicting Method of Welding Residual Stress Using Source of Residual Stress (Report I) : Characteristics of Inherent Strain (Source of Residual Stress)(Mechanics, Strength & Structural Design)
- Mechanical Characteristics of Repair Welds in a Thick Plate (Report II) : Validity of Two-dimensional Plane-deformation Analysis(Mechanics, Strength & Structural Design)
- Mechanical Characteristics of Repair Welds in Thick Plate (Report I) : Distributions of Three-dimensional Welding Residual Stresses and Plastic Strains and Their Production Mechanisms(Welding Mechanics, Strength & Design)
- Three Dimensional Cold Bending and Welding Residual Stresses in Penstock of 80kgf/mm^2 Class High Strength Steel Plate(Welding Mechanics, Strength & Design)
- A Measuring Theory of Three Dimensional Residual Stresses in Long Welded Joints : L_y Method and L_Z Method(Welding Mechanics, Strength & Design)
- Multipass Welding Stresses in Very Thick Plates and Their Reduction from Stress Relief Annealing
- Measurement of Three-dimensional Welding Residual Stresses due to Electron Beam Welding(Welding Mechanics, Strength & Design)
- 13. Brittle Fracture Strength of Repair Weldments in Thick Plate
- Measuring Theory of Three-dimensional Residual Stresses Using a Thinly Sliced Plate Perpendicular to Welded Line(Welding Mechanics, Strength & Design)
- Recent Trend of Researches on Restraint Stresses and Strains for Weld Cracking
- 8. Studies on Deformation and Cracking in One Sided Welding
- Mechanism of Production of Residual Stress due to Slit Weld
- Ultimate Strength Analysis of Double Bottom Structure by "Idealized Structural Unit Method"(Welding Mechanics, Strength & Design)
- Study on the J-integral of Shallow Interfacial Cracks in Ceramics-Metal Joint(Mechanics, Strength & Structural Design)
- Strategic Vision of Materials Joining in Japan
- A Computational Model of Phase Transformation for Welding Processes(Mechanics, Strength & Structural Design)
- Dynamical Characteristics of Oblique Y-Groove Weld Cracking Test Specimen of Arbitrary Thickness(Welding Mechanics, Strength & Design)
- New Measuring Method of Axisymmetric Three Dimensional Residual Stresses Using Inherent Strains as Parameters(Welding Mechanics, Strength & Design)
- Effective Restraint Intensities of a Slit in a Thick Finite Plate
- Restraint Stresses and Strains Due to Slit Weld in Rectangular Plate (Report II) : Effective Restraint Intensities of a Slit in a Thick Finite Plate(Welding Mechanics, Strength & Design)
- Dynamical Characteristics of Y-Groove Cracking Test Specimen of Arbitrary Thickness
- Characteristics of Restraint Stress-strain of the Slit Weld in a Finite Rectangular Plate and the Significance of Restraint Intensities as a Dynamical Factor
- Characteristics of Restraint Stress-Strain of Slit Weld in a Finite Rectangular Plate and the Significance of Restraint Intensities as a Dynamical Measure(Welding Mechanics, Strength & Design)
- Analytical Calculation Method of Restraint Stresses and Strains due to Slit Weld in Rectangular Plates
- Analytical Calculation Method of Restraint Stresses and Strains due to Slit Weld in Rectangular Plates(WELDING MECHANICS, STRENGTH AND DESIGN)
- Restraint Intensities of a Slit in a Finite Plate
- Restraint Stresses and Strains due to Slit Weld in Rectangular Plate (Report I) : Formulae for Conventional Restraint Intensities of a Slit in Finite Plate
- Application of Plastic Node Method to Thermal Elastic-Plastic and Dynamic Problems(Welding Mechanics, Strength & Design)
- Characteristics of Brittle Fracture under General Combined Modes(Welding Mechanics, Strength & Design)
- Characteristics of Brittle Fracture Under Bi-axial Tensile Load (2nd Report)(Welding Mechanics, Strength & Design)
- Characteristics of Brittle Fracture Under Bi-axial Tensile Load
- A Study on the Accuracy of Estimated Residual Stresses by the Existing Measuring Methods
- Effects of Welding Residual Stresses and Initial Deflection on Rigidity and Strength of Square Plates Subjected to Compression (Report II)
- Effects of Welding Residual Stresses and Initial Deflection on Rigidity and Strength of Square Plates Subjected to Compression
- Thermo-Mechanical-Metallurgical Model of Welded Steel : Part 2: Finite Element Formulation and Constitutive Equations(Mechanics, Strength & Structural Design)
- Thermo-Mechanical-Metallurgical Model of Welded Steel : Part I : Evolution Equations for Internal Material Structures
- New Efficient and Accurate Method of Nonlinear Analysis of Offshore Tubular Frames (the Idealized Structural Unit Method) (Report I) : Development of Static Theory and Method(Mechanics, Strength & Structure Design)
- Creep Characteristics in Thick Welded Joints and Their Improvements (Report II) : Applicability of a Simple Model for Creep Analysis of Thick Welded Joints(Mechanics, Strength & Structure Design)
- Creep Characteristics in Thick Welded Joints and Their Improvements (Report I) : Development of A Simple Model for Creep Analysis of A Thick Welded Joint(Mechanics, Strength & Structure Design)
- An Efficient Method for Estimation of Reduction of Welding Residual Stresses from Stress-Relief Annealing (Report III) : Development of Estimation Equations for Multi-Axial Stress State in Thick Welded Joint(Mechanics, Strength & Structural Design)
- Effective Coefficient of Initial Deflection for Simple Prediction Method of Compressive Ultimate Strength of Rectangular Plate(Mechanics, Strength & Structural Design)
- Ultimate Strength of Jack-up Rigs in Survival and Punch-through Conditions(Mechanics, Strength & Structural Design)
- Simple Prediction Methods for Welding Deflection and Residual Stress of Stiffened Panels(Welding Mechanics, Strength & Design)
- Constitutive Equation for Thermal Elastic-Plastic Creep State
- Application of FEM to Theoretical analysis, Measurement and Prediction of Welding Residual Stresses(Mechanics, Strength & Structural Design)
- Mechanical Behaviors in Very Thick Welded Joint from Stress Relief Annealing Estimated by A Simple Specimen(Mechanics, Strength & Structural Design)
- Establishment of Computational Welding Mechanics(Mechanics, Strength & Structural Design)
- Distributions of Welding Residual Stresses in Various Welded Joints of Thick Plates(Welding Mechanics, Strength & Design)
- An Efficient Method for Estimation of Reduction of Welding Residual Stresses from Stress-Relief Annealing (Report II) : The Characteristics of Reduction of Welding Residual Stresses in Very Thick Joints during SR Treatment(Mechanics, Strength & Structural
- An Efficient Method for Estimation of Reduction of Welding Residual Stresses from Stress-Relief Annealing (Report I) : Development of Basic Equations for One-dimensional Stress State and Their Accuracy(Mechanics, Strength & Structural Design)
- Characteristics of Stiffness and Strength of V-Joint in Tubular Offshore Structures(Mechanics, Strength & Structural Design)
- A New Measuring Method of Residual Stresses with the Aid of Finite Element Method and Reliability of Estimated Values
- Transient and Residual Stresses in Multi-Pass Welds
- Prediction of Welding Residual Stress, Deformation and Ultimate Strength of Plate Panels(Mechanics, Strength & Structural Design)
- An Efficient Method for Estimation of Reduction of Welding Residual Stresses from Stress-Relief Annealing (Report IV) : Applicability of the Method for Stress-Relief Annealing of Thick Welded Joints(Mechanics, Strength & Structure Design)
- Theory of Thermal Elastic-Plastic Analysis with A More General Workhardening Rule(Welding Mechanics, Strength & Design)
- Generalization of Plastic Hinge Method for Plate Problems
- Simplifying Methods for Analysis of Transient and Residual Stresses and Deformations due to Multipass Welding(WELDING MECHANICS, STRENGTH AND DESIGN)
- New Interaction Equation for Plate Buckling(Welding Mechanics, Strength & Design)
- A Predicting Method of Welding Residual stress Using Source of Residual Stress (Report II) : Determination of Standard Inherent Strain(Mechanics, Strength & Structural Design)
- A Predicting Method of Welding Residual Stress Using Source of Residual Stress (Report III) : Prediction of Residual Stresses in T- and I-joints Using Inherent Strains(Mechanics, Strength & Structural Design)
- A Predicting Method of Welding Residual Stress Using Source of Residual Stress (Report IV) : Experimental Verification for Predicting Method of Welding Residual Stresses in T-joints Using Inherent Strains(Mechanics, Strength & Structural Design)
- Determination of Optimum Thickness of Corner Bracket Considering Buckling and/or Plastic Collapse(Mechanics, Strength & Structural Design)
- Buckling Behavior of Plates under Idealized Inherent Strain(Mechanics, Strength & Structural Design)
- ISUM (Idealized Structural Unit Method) Applied to Marine Structures(Mechanics, Strength & Structural Design)
- Effects of Initial Imperfection due to Welding on Rigidity and Strength of Triangular Corner Bracket
- FEM Analysis of 3-D Welding Residual Stresses and Angular Distortion in T-type Fillet Welds(Mechanics, Strength & Structural Design)
- Measurement of Residual Stresses in Explosively Clad Steels And A Method of Residual Stress Reduction(Mechanics, Strength & Structural Design)
- The Characteristics of the Source of Welding Residual Stress (Inherent Strain) and Its Application to Measurement and Prediction(Machanics, Strength & Structural Design)
- Fundamental Behavior of Plates and Stiffened Plates with Welding Imperfections(Machanics, Strength & Structural Design)
- Influence of Shape of Initial Deflection upon Compressive Ultimate Strength of Long Rectangular Plates(Welding Mechanics, Strength & Design)
- Ultimate Strength of a Rectangular Plate under Thrust : with Consideration of the Effects of Initial Imperfections due to Welding(Welding Mechanics, Strength & Design)
- Compressive Strength of Plate Elements with Welding Residual Stresses and Deformation
- Measuring Methods for Three-Dimensional Residual Stresses with The Aid of Distribution Functions of Inherent Strain (Report II) : TL_yL_z-Method and T-Method for Measurement of 3-Dimensional Residual Stresses in Bead-on-plate Welds(Mechanics, Strength & S
- Measuring Methods of Three-Dimensional Residual Stresses with Aid of Distribution Function of Inherent Strains (Report 3) : Distributions of Residual Stresses and Inherent Strains in Fillet Welds(Mechanics, Strength & Structural Design)
- Measuring Methods of Three-Dimensional Residual Stresses with Aid of Distribution Function of Inherent Strain (Report I) : A Function Method for Estimating Inherent Strain Distributions(Mechanics, Strength & Structural Design)
- New Measuring Method of Three Dimensional Residual Stresses Based on Theory of Inherent Strain(Welding Mechanics, Strength & Design)
- FEM Simulation of Gas and Plasma Cutting with Emphasis on Precision of Cutting(Mechanics, Strength & Structural Design)
- Simulation of Welding Deformation for Accurate Ship Assembling (Report II) : Influence of Initial Geometrical Imperfection on Butt Welded Plate(Mechanics, Strength & Structural Design)
- Simulation of Welding Deformation for Precision Ship Assembling (Report I) : In-plane Deformation of Butt Welded Plate(Mechanics, Strength & Structural Design)
- Compressive Strength of Structural Members with Soft Weld Joints(Mechanics, Strength & Structural Design)
- Mathematical Treatment of Phase Transformation and Analytical Calculation Method of Restraint Stress-Strain(Welding Mechanics, Strength & Design)
- Mathematical Treatment of Phase Transformation and Analytical Calculation Method of Restraint Stress-Strain
- Mechanical Study on the Effect of Initial Gap upon the Weldability of Spot Weld Joint : Prediction of Contact Area in Squeezing Process(Physics, Process, Instrument & Measurement)
- Applications of Computer and Numerical Analysis Techniques in Welding Research
- Shape Optimization for Reducing Stress at Ceramics/Metal Joints(Mechanics, Strength & Structural Design)
- Effect of Sigularity in Stress Field on Optimum Shape of Ceramics/Metal Joint(Mechanics, Strength & Structural Design)
- Shape Optimization of Ceramics/Metal Joint Based on Reliability(Mechanics, Strength & Structural Design)