Acoustic Shadow Checks in Composite Laminate Panels- A Practical Guide
https://weld-assurance-review.talesignal.com/posts/better-automotive-subframes-through-weld-test-records
Acoustic Shadow Checks in Composite Laminate Panels: A Practical Guide Laminates have layered structure and may need inspection for delamination. Fixtures, edges, and geometry can block the beam and leave regions untested