Vinay Chandwani and Vinay Agrawal and Ravindra Nagar
Modeling and Analysis of Concrete Slump Using Hybrid Artificial Neural Networks
987 - 994
2014
8
9
International Journal of Civil and Environmental Engineering
https://publications.waset.org/pdf/9999439
https://publications.waset.org/vol/93
World Academy of Science, Engineering and Technology
Artificial Neural Networks (ANN) trained using backpropagation
(BP) algorithm are commonly used for modeling
material behavior associated with nonlinear, complex or unknown
interactions among the material constituents. Despite multidisciplinary
applications of backpropagation neural networks
(BPNN), the BP algorithm possesses the inherent drawback of
getting trapped in local minima and slowly converging to a global
optimum. The paper present a hybrid artificial neural networks and
genetic algorithm approach for modeling slump of ready mix
concrete based on its design mix constituents. Genetic algorithms
(GA) global search is employed for evolving the initial weights and
biases for training of neural networks, which are further fine tuned
using the BP algorithm. The study showed that, hybrid ANNGA
model provided consistent predictions in comparison to commonly
used BPNN model. In comparison to BPNN model, the hybrid ANNGA
model was able to reach the desired performance goal quickly.
Apart from the modeling slump of ready mix concrete, the synaptic
weights of neural networks were harnessed for analyzing the relative
importance of concrete design mix constituents on the slump value.
The sand and water constituents of the concrete design mix were
found to exhibit maximum importance on the concrete slump value.
Open Science Index 93, 2014