INITIAL FEASIBILITY STUDY EMPLOYING HOLOGRAPHIC VIBRATIONAL ANALYSIS TO LOCATE NONBONDS IN THICK CERAMIC TO FIBERGLASS COMPOSITE

摘要

The report describes a new nondestructive testing technique by which vibrational analysis and holography complement each other to yield information and results not obtainable by other means. Nonbonds in a composite structure of ceramic and fiberglass, undetectable by other methods employing acoustics, were made clearly visible by the holographic vibrational analysis described. (Author)