Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Structural Engineering and Mechanics Volume 70, Number 1, April10 2019 , pages 1-11 DOI: https://doi.org/10.12989/sem.2019.70.1.001 |
|
|
|
Use of bivariate gamma function to reconstruct dynamic behavior of laminated composite plates containing embedded delamination under impact loads |
||
Sang-Youl Lee and Jong-Su Jeon
|
||
| Abstract | ||
| This study deals with a method based on the modified bivariate gamma function for reconstructions of dynamic behavior of delaminated composite plates subjected to impact loads. The proposed bivariate gamma function is associated with micro-genetic algorithms, which is capable of solving inverse problems to determine the stiffness reduction associated with delamination. From computing the unknown parameters, it is possible for the entire dynamic response data to develop a prediction model of the dynamic response through a regression analysis based on the measurement data. The validity of the proposed method was verified by comparing with results employing a higher-order finite element model. Parametric results revealed that the proposed method can reconstruct dynamic responses and the stiffness reduction of delaminated composite plates can be investigated for different measurements and loading locations. | ||
| Key Words | ||
| bivariate gamma function; delaminated composite plates; micro-genetic algorithm; dynamic behavior; stiffness reduction | ||
| Address | ||
| Sang-Youl Lee: Department of Civil Engineering, Andong National University, 1375 Gyeondong-ro, Andong, Gyeongsangbuk-do 36729, Republic of Korea Jong-Su Jeon: Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea | ||