cohesive failure

cohesive failure

The tearing apart of a sealant as the joint expands if its adhesive (bond) capabilities exceed its cohesive capabilities.
References in periodicals archive ?
When testing on concrete, the pressure in the actuator typically exceeds the internal tensile strength of the concrete itself, at which point a cohesive failure occurs within the concrete.
Cohesive failure was recognized when the failure happened between the wood substrate and the adhesive.
Since the bond formed by the RMGIC liner and the composite restoration is greater than the chemical bonding within the RMGIC liner, cohesive failure occurred within the liner itself resulting in the fracture of the restoration (Figure 1 and 2).
For example, a result of more than 800 psi without substrate should not necessarily be considered a cohesive failure.
Cohesive failure in the composite if remnants of the composite remained on enamel.
Figure 5 depicts images of polyester yams after H-test failure, including: (a) an HR-SEM image of an SP1/CB-coated polyester filament after H-test with cohesive failure demonstrated; (b) untreated yams with poor adhesion to rubber, and adhesive failure; (c) RFL-coated yam with good adhesion to rubber (yams are glued to each other, creating low surface area and cohesive failure); and (d) SP1/CB/latex-coated yam.
4) Cohesive failure within the cement or the ceramic or composite materials.
It has been proposed that the significant wall slip occurs above a certain critical stress through bulk cohesive failure between the absorbed chains to the solid wall and the polymer chains in the bulk [14-16], If the wall slip could not take place consistently or if there are any random and intermittent fluctuations of the slip layer, it may lead to some type of surface nonuniformity, such as the worm melt fracture observed in this study.
0 = Equal volumes of cement on the enamel surface and the band's inner surface: cohesive failure.
In the seal layer, it creates a layer with PB-1 islands in the PE matrix and results in cohesive failure of the seal (Figure 2).
19) Progression of scratching is accompanied by successive degradation described by cohesive failure signaled by microcracks at the edge, local chipping of the coating from its
Cohesive failure occurs when fracture appears within either the ink or adhesive if the system experiences an external force of sufficient intensity.