Experimental Investigations of Damage Identification for Aluminum Foam Sandwich Beams Using Two-Step Method

<div>(a) Damage degree information obtained by the 2nd-order natural frequency. (b) Damage degree information obtained by the 3rd-order natural frequency.</div>

Material Design & Processing Communications

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Figure 15

Figure 15: Experimental Investigations of Damage Identification for Aluminum Foam Sandwich Beams Using Two-Step Method 