Journal
ENGINEERING FRACTURE MECHANICS
Volume 78, Issue 12, Pages 2439-2454Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2011.06.003
Keywords
Tension; Fiber reinforced cementitious composites; Model
Categories
Funding
- National Science Foundation of China [50878119]
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Mode I crack propagation in fiber reinforced cementitious composite is simulated based on fracture mechanics criteria. To analyze crack propagation, a superposition method is employed to calculate the stress intensity factor at the crack tip resulted from both the applied load and the crack bridging stress. Using the model, the effects of various material parameters on the tensile performance are investigated. The requirements for tensile strain-hardening and multiple cracking are analyzed and possible methods for material performance optimization are discussed. Finally, predicted behavior is verified by tensile and bending tests performed on two fiber reinforced cementitious composite beams. (C) 2011 Elsevier Ltd. All rights reserved.
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