Quality Assessment

The quality assessment of the composites used in the specimens to be tested must be done prior to the testing whenever possible. If the composite used in the specimens is of low quality with defects then the property measured are spurious. It can mislead the design and analysis procedure and result in a premature and catastrophic failure of the structure. Hence, the quality assessment of composites before it is used in specimen or actual structure fabrication is essential.

The following quality assessment in composites is essential:

• quality of bond between fiber and matrix,
• voids,
• broken fibers,
• matrix cracks,
• delaminations.

 
In the following we will see the various methods by which we can assess quality of the composites.