Fatigue life and cracking characterization of engineered cementitious composites (ECC) under flexural cyclic load

This paper presents a study on cracking characterization of engineered cementitious composites (ECC) under flexural cyclic load using digital image correlation (DIC) technique. Five stress levels, namely 0.65, 0.75, 0.8, 0.85 and 0.9 the strength, were applied. Strain map at side surface was obtained by DIC used to drive evolution midspan deflection, damage pattern, maximum crack width, number cracks, width distribution with respect normalized cycles. The level found have significant influence behavior ECC load. Regardless applied level, most widths are in range between 20 80 ?m. In end, two-dimension Gauss function correlate cycle shows satisfactory results.