Research Article
On the Finite Element Free Vibration Analysis of Delaminated Layered Beams: A New Assembly Technique
Figure 12
Examples of physically inadmissible mode shapes for a 3-layer delaminated beam obtained using 3-node elements (double-delamination model 1); , , and . (a) off-delamination level partial pole 2nd mode (i.e., no vibrations at the intact segments), λ = 4.67. (b) interpenetration due to natural vibration 4th mode, λ = 5.96.
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