Buckling load enhancement of damaged composite plates under hygrothermal environment using unified particle swarm optimization

2016 ◽  
Vol 55 (2) ◽  
pp. 437-447 ◽  
Author(s):  
V. M. Sreehari ◽  
D. K. Maiti
Keyword(s):  
Particle Swarm Optimization ◽  
Particle Swarm ◽  
Composite Plates ◽  
Buckling Load ◽  
Swarm Optimization ◽  
Hygrothermal Environment ◽  
Unified Particle Swarm Optimization

Best pattern for locating piezoelectric patches on a plate for maximum critical buckling loads, using particle swarm optimization algorithm

2018 ◽  
Vol 29 (14) ◽  
pp. 2874-2884 ◽  
Author(s):  
Javad Jafari Fesharaki ◽  
Hamed Mobini Dehkordi ◽  
Mohadeseh Zohari ◽  
Said Karimi
Keyword(s):  
Particle Swarm Optimization ◽  
Optimization Algorithm ◽  
Particle Swarm Optimization Algorithm ◽  
Particle Swarm ◽  
Free Edge ◽  
Buckling Load ◽  
Swarm Optimization ◽  
Critical Buckling Load ◽  
Linear Effect ◽  
Clamp Condition

Locating piezoelectric patches on structures under compressive forces as a sensor or actuator can predict or increase the buckling load of the structure. In this article, using particle swarm optimization algorithm, the location and pattern of piezoelectric patches on a plate to achieve maximum buckling load are investigated. For boundary condition of the plate, four different conditions are considered. The piezoelectric patches have more effect on critical buckling load for Clamp-Free condition and less effect for Clamp-Clamp condition. The voltage of patches has a linear effect on increasing the maximum critical buckling load. The results show that locating piezoelectric patches near the clamp edge has more influence on critical load than locating the patches near the simply support or free edge. The results in this article are validated by comparing to the results reported in the previous publication.

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