5.4. Scanning Acoustic Microscopy (SAM) analysis
Fig. 4. SAM pictures in backecho mode for two samples per set of lamination conditions for (a) set 1, (b) set 16, and (c) set 18. Delamination can be recognized as the dark region in (a).Figure optionsDownload full-size imageDownload as PowerPoint slide
The initial quality of the process (occurrence of delaminations) between laminates is better to investigate using SAM instead of MG 262 analysis. SAM gives much more precise results which can be easier diagnosed. Meanwhile compression analysis may not detect delamination occurrence.
The design of the experiment is a way which can be used for conducting experiments. However, the proper design has to be chosen at initial stage of the experiment – before collecting of results. Otherwise, many useful information can be not achievable in the frame of the investigation, e.g. as in exoskeleton case due to the lack of interactions analysis or confounding between factors and interactions. Hence, design matrix shall be chosen individually for each experiment taking into account the expected phenomena which can occur during the investigation.