PSI - Issue 68

J.C. Gomez-Mancilla et al. / Procedia Structural Integrity 68 (2025) 1208–1215 Gomez-Mancilla J / Structural Integrity Procedia 00 (2025) 000–000 St

1210

a

b

Fig. 1. a) current typical test set up, only axial excitation & monitoring channel ( Ch1), b) shows the additional bending monitoring channel ( Ch2)

Fig. 1a) shows the current typical test setup; only Ch1, axial, is used; it is the configuration presently used both to excite the vibrating load and measure the response. In contrast, Fig. 1b is the proposed configuration, with channel 2 (Ch2) in green, illustrating the proposed monitoring of the flexural vibration; criteria 2 and 3 depend on (Ch2) data. a b

Fig. 2. (a) VHCF rectangle. section probe; (b) axial (upper plot) and bending (lower) response time signals. Lines bound the cyclic load duration.

Computer codes must be programmed to show the relevance and advantage of transverse bending supervision. The codes calculate the axial and corresponding flexural vibration responses orthogonal to the specimen at any desired location. The transverse flexural responses are additional measurements indispensable to implement in International Standards Guides and similar documents and for the American Society of Testing Materials (ASTM) to recommend them.