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CRACK PROP AGA TI ON ANAL YSIS USING FRACTURE MECHANICS AND FINITE ELEMENT METHOD Journal: CEMENT and CONCRETE RESEARCH V olume: 6 Page: 773-782 Y ear: 1976 DOI: -

Crack Analysis

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CRACK PROPAGATION ANALYSIS

USING FRACTURE MECHANICSAND FINITE ELEMENT METHOD

Journal: CEMENT and CONCRETE RESEARCH

Volume: 6

Page: 773-782

Year: 1976

DOI: -

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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.

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Proposed approach

• Similar to the Barenblatt model

•It can be applied to all the three modes.

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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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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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