Extend Stress-Strain Curve Parameters and Cyclic Stress-Strain Curves to All Materials Listed for Section VIII, Divisions 1 and 2 Construction (STP-PT-056 - 2013)
American Society of Mechanical Engineers
Foreword
Executive Summary
1 INTRODUCTION
2 METHODS OF PARAMETERIZATION
OF STRESS-STRAIN CURVES
3 THE DILEMMA OF FINDING THE
(USUALLY NOT AVAILABLE) ULTIMATE
TENSILE STRAIN
4 CRITICAL ASSESSMENT OF THE DIFFERENT
APPROACHES USING ACTUAL STRESS-STRAIN CURVES
5 TANGENT MODULUS
6 CYCLIC STRESS-STRAIN CURVES
7 PROPOSAL FOR IMPLEMENTATION OF
STRESS-STRAIN CURVES INTO THE ASME CODE
8 REFERENCES
Appendix A - Determination of the stress-strain
curve using two data points
Appendix B - Comparison for IN 800H (rational polynomial,
ASME II, Ramberg-Osgood)
Appendix C - Data-sheets (true stress-strain curves, modulus)
for cross comparison
Appendix D - Excel map which calculates stress-strain curves
and tangent moduli according to MPC and RO-eng
Acknowledgements
This report evaluates capabilities and limitations of the different methods using experimental results from literature and elaborates on a method which could minimize current deficiencies without having severe impact on the huge amount of already existing evaluations and data. These methods should have the capability to introduce stress-strain curves in future code editions.
| Document Type | Standard |
| Status | Current |
| Publisher | American Society of Mechanical Engineers |
