Abstract: The accuracy of probabilistic risk assessment of rotor disks is strongly dependent on the accurate description of the size and shape distributions of anomalies in alloys. These size-shape ...

Abstract: Structural evaluation and design have been dominated by component safety checks. In fact, current reliability-based codes for buildings and bridges are largely limited to individual structural component checks and do not ...

Abstract: Experience has demonstrated that highway bridges are vulnerable to damage from environmental attack, such as alkali-silica reaction, corrosion, and freeze-thaw. To make rational decisions in a life-cycle cost perspective, ...

Abstract: Some rotor-grade gas turbine engine materials may contain multiple types of anomalies such as voids and inclusions that can be introduced during the manufacturing process. The number and size ...

Abstract: It is well known that the U.S. bridge inventory stands in need of repair. For a rational allocation of U.S. investment resources to bridge maintenance, life cycle cost and probabilistic methods must be used. This requires ...

Abstract: It is well known that the U.S. infrastructure is in need of extensive repair. To ensure that the scarce resources available for maintaining the U.S. bridge inventory are spent in an optimal manner, bridge management programs ...

Abstract: In an effort to prioritize the repair, rehabilitation, and replacement of existing bridges, bridge management programs have been developed. In recent years, reliability-based optimum-maintenance planning strategies applicable ...

Abstract: Titanium gas turbine disks are subject to a rare but not insignificant probability of fracture due to metallurgical defects, particularly hard α. A probabilistic methodology has been developed ...

Abstract: The objective of this investigation was to develop an innovative methodology for life and reliability prediction of hot-section components in advanced turbopropulsion systems. A set of three ...