Title of article
Effect of fiber volume fraction on crack propagation rate of ultra-high toughness cementitious composites
Author/Authors
Liu، نويسنده , , Wen and Luo، نويسنده , , Lu and Xu، نويسنده , , Shilang and Zhao، نويسنده , , Honghua، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2014
Pages
12
From page
52
To page
63
Abstract
An investigation on the fatigue crack propagation law and the effect of fiber volume fraction on crack propagation rate of ultra-high toughness cementitious composites is carried out in this paper. Three fiber fractions, 1.5%, 2.0% and 2.5% are adopted. The research result shows that multiple random cracks are generated for the fracture specimens of this material under fatigue load, while the crack number depends on fatigue stress level and fiber fraction. With the increase of fiber volume fraction, the crack growth threshold is improved, while the crack propagation rate is decelerated. Meanwhile, the crack propagation rate is obviously affected by the fatigue loads.
Keywords
Ultra-high toughness cementitious composites , Ductile fracture , Crack propagation rate , Fiber volume fraction
Journal title
ENGINEERING FRACTURE MECHANICS
Serial Year
2014
Journal title
ENGINEERING FRACTURE MECHANICS
Record number
2344289
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