Koheseks

Koheseks is a term used in certain scientific and engineering contexts to describe the internal cohesion that binds together the components of a system. Though not tied to a single, universally accepted definition, it generally denotes the resistance to separation within a material or structure, as opposed to the forces at its interfaces with other materials.

In materials science, koheseks refers to cohesive strength, the energy or stress required to create new surfaces within the material, such as during crack formation. It is commonly measured through tests that induce internal fracture, including tensile, compression, and bending specimens, and is related to fracture toughness and interfacial bonding. In composites, koheseks is used to describe the bonding between the matrix and reinforcement, a key factor in durability and damage tolerance.

Koheseks is also applied in geotechnical and civil engineering contexts to describe the intrinsic bonding among particles within soils or rocks, contributing to shear strength beyond friction alone. In organizational or social sciences, the term is sometimes adopted metaphorically to denote group cohesion, trust, and collective resilience, although such usage is non-physical and qualitative.

Measurement and interpretation of koheseks depend on the field and the chosen model. In practice, higher koheseks generally correlates with increased resistance to crack initiation and propagation, while lower values indicate a greater propensity for separation under load, aging, or environmental exposure.

See also: cohesion, fracture toughness, cohesive strength, interfacial energy, adhesive strength.