Issue 62

P. Ghannadi et alii, Frattura ed Integrità Strutturale, 62 (2022) 460-489; DOI: 10.3221/IGF-ESIS.62.32

(PSO, BA, and colliding bodies optimization (CBO)) to generate a surrogate of the FEM and reach a short computational time. The locations of the delamination cases are initially detected through the MSC index. Then, the interface of the delamination cases is estimated by minimizing an objective function relying on the changes in natural frequencies and mode shapes.

CFNN and GMDHN provides the same level of accuracy. However, where GMDHN is used, the computational time is significantly less than that of CFNN. The overall results of this paper demonstrate a superior accuracy for the localization of the single and multiple delamination cases and their interface, while the modal components are contaminated by a certain level of noise.

Laminate composite beam Laminate composite plate

Barman et al. [131]

2020 To improve UPSO in terms of accuracy and convergence rate, a new version of the combination of the standard continuous UPSO and binary UPSO (mixed UPSO) is introduced to be employed in a two-stage method for the delamination assessment in composite structures.

Table 2: A review on the application of PSO on the structural damage detection.

25

20

15

10

5

Number of publications

0

2005-2010

2011-2016

2017-2020

Year

Figure 4: Number of publications in the area of structural damage detection based on PSO - A classification by year.

The number of publications on structural damage identification using PSO is shown in Fig. 4. It can be observed that the considerable developments in optimization-based damage detection methodologies have been conducted in the last decade. Fig. 5 presents the contribution of the publications in the fields of crack detection, FEM updating, damage detection, FEM updating and subsequent damage detection. It can be easily realized that the main contribution of recently published papers is damage detection. Then, the combination of FEM updating and damage detection is the frequently used methodology.

Figure 5: Contribution of the publications in the fields of crack detection, damage detection, FEM updating, and FEM updating+damage detection

477