Delamination


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delamination

[dē‚lam·ə′nā·shən]
(biology)
The separation of cells into layers.
(embryology)
Gastrulation in which the endodermal layer splits off from the inner surface of the blastoderm and the space between this layer and the yolk represents the archenteron.
(engineering)
Separation of a laminate into its constituent layers.

Delamination

Coming apart layer by layer; as in a separation of plies in a plywood panel, either through failure of the adhesive or through failure at the interface of the adhesive and the lamination.

delamination

A failure in a laminated structure characterized by the separation or loss of adhesion between plies, as in built-up roofing or glue-laminated timber.
References in periodicals archive ?
Caption: Examples of UAS-based geospatial outputs at Beyer Road Bridge Left: The green polygons show likely delamination areas as detected by automated methods and the pink polygons are delamination marked by a MDOT bridge survey a month after the UAV thermal data collection.
The amplitude difference between reflection from delamination and not defected area is 1 dB.
A different failure mode has occurred when using thicker film material where delamination occurs during soldering.
Effect of delamination on buckling performance of FRP composite plates.
However, the bottom surface displays a significant amount of wrinkles and defects within the laminate the use of NDT has allowed us to identify the range of delamination's caused by the forming operation without changing settings or location of the NDT system, It has additionally enabled us to perform a repeatable quality control step on a variety of composite stacks with varying defects of variable size and ability to identify with no delamination in surface A to severe delamination see in Surface D Figure 6.
In this paper, a numerical approach is proposed to localize a delamination in sandwich skin as presented in Figure 1.
A delamination crack is, generally, represented by an interfacial entity between two plies of the laminates.
Delamination factor is labelled as Df and it is the percentage difference between the recommended width of the notch and the real width of the notch.
More specifically, the outermost area accounts for the whole extension of delamination. In fact, as demonstrated in previous work [3], any form of damage (delamination and/or fibers breakage) is accompanied by heat dissipation, which manifests itself through the appearance of hot spots/areas over the material surface.
S.M Kulkarni et al [5] analyzed drilling induced delamination in GFRP across various cutting parameters and concluded the optimum cutting parameters obtained using ANOVA and Taguchi methods.
Compared to coatings made with competitive products, hybrid formulations featuring SiVance C2010 resin enable formulators to help their customers avoid the cracking, delamination and blistering that lead to corrosion and failure of metal pipes, tanks and equipment, according to the company.