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《Journal of Hehai University (Natural Sciences )》 2005-04
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Calculation formula for K_(IC) of steel fiber reinforced concrete

CHENG Xiu-ju, ZHU Wei-xuan(College of Civil Engineering, Hohai University, Nanjing 210098, China)  
It is found from an analysis of a group of typical experimental data about steel fiber reinforced concrete that the formula for calculation of K_(IC) of steel fiber reinforced concrete, presented by ASTM, is ineffective to reflect the fracture characteristic of the reinforced concrete. Therefore, the necessity for consideration of the precritical crack propagation length was theoretically discussed, and a new formula for calculation of K_(IC) of steel fiber reinforced concrete was derived by use of the double-K fracture criterion.
【CateGory Index】: TU528.572
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