Step 1 of the test consisted of a distributed cracking state in which several cracks were observed distributed throughout the whole panel and orientated 71° with respect to the x-axis, as indicated in Figure 9b.
El instante 1 del experimento muestra un estado de fisuración distribuida, en el cual se observan múltiples fisuras repartidas en toda la extensión del panel y orientadas a 71° con respecto al eje x, como lo indica la Figura 9b.