Research assistant, Center for Advanced Technology for Large Structural Systems, Lehigh University, Bethlehem, PA
Senior research engineer, Center for Advanced Technology for Large Structural Systems, Lehigh University, Bethlehem, PA
Pages: 15 Published: Jan 1997
Experiments were conducted at room temperature on 16 full-scale welded structural members containing fatigue cracks. These I-section and box-section members were fabricated from HSLA-80 steel that exhibits upper-shelf behavior at room temperature. These members consistently reached at least the net-section collapse load and deformed to several times the yield-point displacement. The experiments were analyzed with a variety of ductilefracture models including the three levels in the British Standards Institute document PD 6493, a stable tearing analysis using finite-element analysis to calculate J, and a limit-load analysis. These models were studied in order to evaluate their usefulness and degree of conservatism relative to experimental results.
ductile tearing, PD 6493, J, -integral, limit load
Paper ID: STP16235S