Detection of defects, imperfections

Surface defects: crack

Defects in the volume of the part: Inclusion of material, porosity, delamination, cracking, bubble

Non Destructive Testing Methods
Eddy currents / Ultrasound / Penetrant / Terahertz Imaging

Structure analysis by AND methods

Mechanical characteristics :
Young's mechanical modulus E, shear G, density
Hardness, residual stresses (permanent)
Applied stresses, strains

Structural and physical characteristics  :
Macro and microstructure information
Fiber orientation, compaction, stacking
Resin rate, matrix, interface

Ultrasound, Eddy Current