Brite-Euram Project No.: BE95-1426 Contract No.: BRPR-CT95-0024 Task No.: 2 Sub-Task No.: 2.1 Date: 30.8.96 Contributing Organisations: British Steel STRUCTURAL INTEGRITY ASSESSMENT PROCEDURES FOR EUROPEAN INDUSTRY SINTAP SUB-TASK 2.1 REPORT: THE SIGNIFICANCE OF THE YIELD STRESS/TENSILE STRESS RATIO TO STRUCTURAL INTEGRITY Reported By: British Steel plc Authors: A.C. Bannister and S.J. Trail