Shanghai Jiao Tong University
In this work, a combined Voronoi and finite-discrete element method (FDEM) approach for reconstructing the post-fracture model of laminated glass (LG) was proposed. The fracture morphology was determined via introducing Voronoi tessellation with statistical distribution parameters such as the fragment face numbers, volume and sphericity. The residual interaction between glass fragments was described with cohesive zone model. One fractured LG block under uniaxial tension, which was taken from a triple layered LG beam with ionoplast interlayers, was modelled and validated with experimentally recorded data.
Through iteration analysis, the key cohesive parameters were determined for the most applicable model. It is followed by investigating the influence due to the fragments interaction property. The results show that the cohesion and frictional property can be combined to well describe the residual interaction behaviour between fragments. The frictional p
shannon: federal investigators will soon get their hands on a key piece of evidence as they try to figure out how a hole ripped open a southwest flight in progress. it is the bottom of the hour. peter doocy with that and our other top stories. hi, peter. as casey stegall has been reporting, investigators for the national transportation safety board have their hands on the recorder for the southwest flight. we now know that the ntsb is also looking at a cutout piece of the southwest airline for fracture patterns and southwest officials say the plane had completed all inspections required by the faa and the airline has now canceled roughly 300 flights in the wake of the investigation. a grizzly discovery at japan s fukushima nuclear plant. the bodies of two workers