Figure 9
The neural network diagram begins on the left with the “Input layer,” which contains two circles labeled “x subscript 1” and “x subscript 2.” A rectangular label to the left of “x subscript 1” reads “Impact energy,” and a rectangular label to the left of “x subscript 2” reads “Matrix volume fraction.” Multiple straight connecting lines extend from both “x subscript 1” and “x subscript 2” toward a vertical sequence of circles forming the “Hidden layer” at the center, labeled consecutively from top to bottom as “n subscript 1,” “n subscript 2,” “n subscript 3,” followed by a series of dots, then “n subscript i plus 1,” “n subscript i plus 2,” and “n subscript i plus 3.” Each circle in the “Hidden layer” is connected by multiple straight lines to three circles on the right that form the “Output layer,” labeled from top to bottom as “y subscript 1,” “y subscript 2,” and “y subscript 3.” A rectangular label to the right of “y subscript 1” reads “Maximum force,” a rectangular label to the right of “y subscript 2” reads “Maximum displacement,” and a rectangular label to the right of “y subscript 3” reads “Energy absorption percentage.”The utilized neural network architecture