Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 23, 2018 - November 25, 2018
FTMP-based rational descriptions of three typical fracture modes are described: (1) ductile fracture, (2) creep rupture and (3) fatigue crack initiation, whose evolutions are respectively triggered or promoted by deformation-induced substructures. For (1), critical conditions governing the outsets of macro/micro instabilities are discussed, while (2) is concerned with localized recovery-induced rupture in packet models for lath martensite structures, in connection with the interaction fields. The mode (3), on the other hand, is partly reproduced via evolving PSB ladder structure. Some noteworthy outcomes based on the corresponding duality diagram representations are presented. In particular, the phase space trajectories for the incompatibility field are demonstrated to be able to “sensitively” capture the detailed evolutionary pieces of information about the deformation-fracture transition processes within the targeted system.
