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Didn't they specifically refuse to do any testing because they trusted that proprietary acoustic system?
by eternityforest 3y ago
Didn't they specifically refuse to do any testing because they trusted that proprietary acoustic system?
- thsksbd 3y agoThe paper is from 2020. My understanding is that composite testing is still in its infancy. Also note that the hull was 5 inches thick (safety factor > 2.5). Depending on the dispersion properties of the medium ultrasound might not penetrate and get a good result. In Ti (some alloys at least), for example, you cant get much signal past a couple of inches due to the scattering (from the grains?)
- namibj 3y agoThat was supposed to hear the hill cracking/creaking. Ultrasound for delamination is like medical ultrasound and looks for a discontinuity in the sheet from the delamination.
- eternityforest 3y agoI think someone wanted to do the delamination hull scan and they skipped it presumably because they trusted the creak listener