Cohesievezone
Cohesievezone is a theoretical construct in materials science and fracture mechanics describing a contiguous region within a solid where cohesive forces are locally enhanced, contributing to structural integrity and resistance to crack initiation. The term functions as a portmanteau of cohesive and zone and is sometimes used in discussions of extended cohesive-zone models (CZM) that incorporate microstructural heterogeneity.
In practice, a Cohesievezone is characterized by elevated interatomic bonding density, altered traction-separation behavior, and a
Applications include predicting fracture paths in composites and polycrystalline metals, optimizing interfaces in additive manufacturing, and
Limitations include the need for accurate parameterization of cohesive strength and fracture energy, potential over-simplification of
See also: cohesive zone model; fracture mechanics; interfacial strength; traction-separation law.