Flexible pipes are extensively used to connect seabed and floating production systems for the development of deep-water oil gas. In top connection area, end fitting (EF) is connector between flexible pipe platform, as a critical component structural failure. To address this issue, combined numerical experimental prediction method proposed in paper investigate failure behavior EF considering ten...

Large scale simulations using cohesive zone interfacial elements were used to understand features such as penetration and deflection of crack during the process of interaction of mode-I crack with inclined interfaces. To perform these simulations, two set of inputs are necessary. The first one is to provide valid loading boundary conditions and the second one is to incorporate accurate cohesive...

Cohesive zone models provide an illuminating and tractable way to include constitutive non!linearity into continuum models of defects[ Powerful insights have been gained by studying both dislocations and cracks using such analyses[ Recent work has shown that as a result of the locality assumption present in such cohesive zone models\ signi_cant errors can be made in the treatment of defect ener...

For nickel-based superalloys subjected to high temperatures and oxygen-rich environments, mechanical loading in combination with oxygen diffusion along grain boundaries leads an acceleration of crack propagation. To account for these phenomena, a fully coupled thermodynamically consistent chemo-mechanical modeling framework stress-assisted embrittlement polycrystals is proposed. We formulate ex...