Análisis Numérico de la Fractura del Hormigón con Base en el Enfoque Peridinámico del Continuo
DOI:
https://doi.org/10.70567/mc.v41i10.52Palavras-chave:
Peridinámica, discontinuidades, comportamiento cuasifrágil, hormigónResumo
A pesar de su amplia utilización en diferentes campos de la ingeniería, la Mecánica del Continuo presenta como principal inconveniente el tratamiento de discontinuidades. Por otra parte, un enfoque integral, como la peridinámica, permite el surgimiento y desarrollo natural de fisuras en el material. En este sentido, se analizó la respuesta mecánica cuasiestática de vigas de hormigón sometidas a flexión en tres puntos. Con base en el Modelo de Zona Cohesiva, se describió el comportamiento cuasifrágil del hormigón mediante una curva con ablandamiento bilineal, con parámetros ajustados (módulo de elasticidad, resistencia a tracción y energía de fractura) según la geometría de cada viga. Se verificó que la técnica propuesta es adecuada para el análisis del comportamiento flexional de hormigón, para distintas dimensiones de sección transversal y entalla inicial.
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