New approach to evaluate lattice expansion of light water reactor fuel elements on criticality safety of transport packages under impact accidents

Consequences of Fuel Failure on Criticality Safety of Used Nuclear Fuel

“…"New Approach to Evaluate Lattice Expansion of Light Water Reactor Fuel Elements on Criticality Safety of Transport Packages under Impact Accidents," Ref. 32, examined pin pitch deformation in LWR fuel assemblies during transportation accident conditions. The paper proposed a method for generating a regular, nonuniform array of fuel rods with the outer row restrained by the basket walls and the pitch of the inner rows progressively expanded or contracted.…”