Service failures of pressure vessels are generally a consequence of inherent part-through surface of sub-surface defects. The catastrophic pressure vessel failures of the mid 50's and 60's necessitated the development of a technology for the understanding and thereby eventual elimination of these ...
Then, dynamic response simulation of superalloy thin-walled structure under the same load as experiment was implemented, and fatigue life was estimated based on the fatigue life prediction model which mainly included: improved rain-flow counting method, Morrow average stress model and Miner linear ...
Thin-walled regions (TIWRs) within cerebral aneurysms have a high risk of rupture during surgical manipulation. Previous reports have demonstrated specific changes in the parameters of computational fluid dynamics in TIWRs; however, they have not been fully evaluated. We identified and investigated a...
One can also get a sense of how small this load is by a simple mechanical thought experiment: Suppose the tube were not an origami but instead a homogenous thin-walled cylinder. Then, due to force balance, an internal pressure \(p\) as above would generate a hoop stress \(\sigma \sim...
One can also get a sense of how small this load is by a simple mechanical thought experiment: Suppose the tube were not an origami but instead a homogenous thin-walled cylinder. Then, due to force balance, an internal pressure p as above would generate a hoop stress σ ∼ pR/h ...
Non-planar crack propagation analyses for thin-walled structures containing multiple cracks are performed using Fracture and Crack Propagation Analysis System (FCPAS) finite element software. Numerical results from FCPAS, which employs three-dimensional enriched finite elements and is applied first time to...
In such a case, the designers have to address the discontinuity that is imposed on the structure while still meeting the ASME required stress criteria for structural integrity. The term "weak link" is used herein to identify the subcomponent or subsystem which is most likely to fail under a ...
This is also consistent with the numerical prediction of burst pressure using Hashin failure criteria and progressive damage analysis.doi:10.1016/j.tws.2023.110752FanDing LiXueDong ChenPeng XuZhiChao FanQuan WangChengSi LyuQian ZhangHao YuHengAn WuThin-Walled Structures...
In comparison, the thick-walled cylinders were 483.9 bar for 5-unit cells pattern and 520.6 bar for 1-unit cell pattern. According to the data, it can be inferred that winding pattern had no significant effect on the implosion pressure of the filament-wound cylinders. Failure of ...
limiting pressure鈥擳he failure criteria and limit states for thin-walled pressure vessels are analyzed taking into account the influence of plastic deformations. The introduction describes the main problems in operation of thin-walled vessels working under internal excess pressure associated with ...