Brittle Fracture of Weld T-Joints in Reversed Loading

摘要

This paper concerns the assessment of weld defects influencing crack growth and fracture behavior of joints. Welded T-joints made of steel plates, with or without fatigue cracks along the weld toes, were tested in reversed loading to reproduce fractures starting from the weld toes. The effects of fatigue cracks were studied by comparing test and FE analysis results and by looking into the state of stress and strain at the region near the weld toes.