Mixed-mode fracture toughness testing of concrete beams in three-point bending |
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| Authors: | S E Swartz L W Lu L D Tang |
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| Affiliation: | (1) Department of Civil Engineering, Kansas State University, 66506 Manhattan, Kansas, USA;(2) Department of Civil Engineering, East-China Jiaotong University, Nanchang, Jiangxi, China;(3) Department of Agricultural Machinery Engineering, Luoyang Institute of Technology, Luoyang, Henan, China |
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| Abstract: | Results obtained for mixed-mode fracture toughness parameters K
c
, G
c
, J
c
, G
F
(plane strain mixed-mode stress-intensity factor, energy release rate, J-integral and fracture energy, respectively) for
small notched concrete beams in bending indicate that all these parameters decrease with x/S (x is the distance from support,
S is the span) in general to values near midspan consistent with Mode I results. All the parameters except J
c
vary with notch depth in a similar manner for each notch location. |
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| Keywords: | |
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