A metallurgical evaluation limited to visual examination and optical microscopy of the separated wheel flange in conjunction with 3D modeling based upon nominal
It is low-cost insurance to prevent a serious accident. On the other hand, a number of rigging gear overloads occurred due to poor rigging practices, indicating
This failure concerned a tower crane operating at the roof level of a reinforced concrete building (48 story) nearing completion. At the time of the accident
In railroading, a derailment occurs when a rail vehicle such as a train comes off its rails. Although many derailments are minor, all result in temporary
