2D Test Cases In Post Yield Fracture Mechanics

Contents

INTRODUCTION

• Background
• Aims and Objectives of the Benchmarks
• Fudamentals of Elastoplastic Models
• The Finite Element Code
• Test cases
  • Centre Cracked Plate
  • Compact Tension Specimen
  • Three Point Bed Specimen
• Target Solutions
• Fracture Parameter Evaluation Methods
• Load versus Displacement Control
• Report Format

PART A
CENTRE CRACKED PLATE

Limit Load Solutions

Mesh Convergence Study

Fracture Parameter Study

Further Investigations

• Increment (Step) Size
  • Convergence Tolerance
  • Integration Order
• Plane Stress Solution
• Material Characteristics
• Thermal Clothing

PART B
COMPACT TENSION SPECIMEN
Fracture Parameter Study

THREE-POINT BEND SPECIMEN
Fracture Parameter Study

CONCLUSIONS

APPENDIX A