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7/24/2019 Crack Analysis
http://slidepdf.com/reader/full/crack-analysis 1/5
CRACK PROPAGATION ANALYSIS
USING FRACTURE MECHANICSAND FINITE ELEMENT METHOD
Journal: CEMENT and CONCRETE RESEARCH
Volume: 6
Page: 773-782
Year: 1976
DOI: -
7/24/2019 Crack Analysis
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Importance of the model•Study of crack growth is important in performance of unreinforced and reinforced concrete.
Introduction about the model•Fracture mechanics is introduced into finite element analysis as a new model.
•Stresses are assumed to act across a crack as long as it is narrowly opened.
deneme556.blogspot.comcivildigital.com
7/24/2019 Crack Analysis
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Proposed approach
• Similar to the Barenblatt model
•It can be applied to all the three modes.
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7/24/2019 Crack Analysis
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Tensile test result and FEM
implication
A test result from a tensile test Bent rectangular beam and a correspondingFEM representation
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7/24/2019 Crack Analysis
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Result and conclusion
Test results of
bending strength
versus beam depth
Conclusion
•The proposed method seems to yield realistic results regarding crack formation and propagation .
•This method gives better result for coarse mesh also.
•This gives opportunity to study complicated problems with limited computing facility.
of concrete.
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