delaminate

Defects such as voids, porosity, delaminations can occur at manufacturing stage because of a lack of adhesive or by the presence of foreign objects as well as during operation of the structure.

A surprise comes in Gate 34, seen in Figure 7: the delaminations at left are the descendants of the delamination observed in this region in Gate 20.

They investigated multiple delaminations through numerical analysis.

Cawley, "The interaction of Lamb waves with delaminations in composite laminates," The Journal of the Acoustical Society of America, vol.

Scaramuzzino, "Delaminations buckling and growth phenomena in stiffened composite panels under compression.

It has been shown that the basic elements of internal microstructure are well-seen in acoustical images--individual plies, intralaminar package of carbon fiber bundles and threads, defects of the package including disorientation and folding of reinforcement, non-uniform distribution of the polymer matrix, adhesion loss between the reinforcing elements and matrix including fiber exfoliations and interlayer delaminations [19].

Germain, A study of complex delaminations in laminated composite structures with SAMCEF, University of Liege, Belgium, 26-28 May 2008

Echoes are returned by each of the thousands or millions of x-y locations where a pulse was reflected by the interface between two solids or between a solid and air, as is found in cracks, delaminations and other gaps.

[9] extracted amplitude ratios of the [S.sub.0] and [A.sub.0] modes from AE signals to quantitatively evaluate the occurrence of transverse cracks and delaminations in CFRP laminates.