some considerable damage to steel structures during the hyogo-ken nanbu earthquake occurred. among them, many exposed-type column bases failed in several consistent patterns, such as brittle base plate fracture, excessive bolt elongation, unexpected early bolt failure, and inferior construction work, etc. the lessons from these phenomena led to the need for improved understanding of column base...

water is the most essential component for sustaining lives of humans and other living creatures. supplying potable water with adequate residual pressure is a fundamental responsibility of city administration, which they do during normal conditions. but sometimes, abnormal conditions are formed resulting pressure deficient conditions during the daily operations of water distribution networks. th...

there are various parameters that affect stability and expansion of failure zones in under pressure tunnels. among the important parameters that affect failure zones around the tunnels are cohesion and internal friction angle of the rock mass. in addition, the cross sectional shape is the considerable point in failure distribution around the tunnels. the stress analysis method is one of the app...

Failure behavior analysis is a very important phase in developing large distributed embedded systems with weak safety requirements which do graceful degradation in case of failures. Today, the analysis will usually be done by standard methods like FTA and FMEA considering the existence of faults, only. Gradations of errors are not regarded, although this is a very coarse system behavior approxi...

There are various parameters that affect stability and expansion of failure zones in under pressure tunnels. Among the important parameters that affect failure zones around the tunnels are cohesion and internal friction angle of the rock mass. In addition, the cross sectional shape is the considerable point in failure distribution around the tunnels. The stress analysis method is one of the app...

SoS Models used for SoS design and requirements elicitation. At runtime operations SoS is under failure risk that resulted from its emergent behavior due to its constituent systems autonomy and system complexity. In order to mitigate SoS failure effects and prevent SoS failure we propose SoS model extensions and system failure prediction and prevention framework that enhance the usage of SoS st...