Integrity Analysis of a T-Frame Stiffened Panel with a Weld Defect

摘要

Structural integrity analyses are often an essential part of the design and fabrication processes. In any structural integrity analysis, an accurate representation of component geometry and material constitutive response is required. Weld geometry and weld inhomogenity add to the complexity of a structural integrity analysis. The current work consist of a structural integrity analysis of a welded T-frame stiffened panel with a lack of penetration weld defect. Material fracture toughness at the continuum scale is used in the computational simulation of the welded T-frame. Complementary global and detail weld defect region models are used to simulate global and local structural response. Differences in weld and base metal properties are explicity included in the computational simulation. The failure site is determined directly from the computational analysis. Integrity analysis, Weld, Finite element, Strain energy, Fracture. (jes)