Discussion on “Experimental study on fracture toughness and tensile strength of a clay” [Engineering Geology 94 (2007) 64–75] |
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Authors: | MR Lakshmikantha PC Prat A Ledesma |
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Institution: | aDepartment of Geotechnical Engineering and Geosciences Universitat Politècnica de Catalunya, Jordi Girona 1-3, 08034 Barcelona, Spain |
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Abstract: | The paper Wang, J.-J., Zhu, J.-G., Chiu, C.F., Zhang, H., 2007. Experimental study on fracture toughness and tensile strength of a clay. Engineering Geology 94, 64–75.] focuses on two important fracture parameters of soils: tensile strength and fracture toughness. These parameters control the behaviour of soils in a wide range of situations, from the design of a simple footing to much complicated fracture behaviour of clay liners or covers. The authors have done extensive laboratory work to determine these two parameters and their laborious and complicated experimental program needs praise. However, some of the points raised in their conclusions, based on the analysis and comparison with the data from the literature, need to be discussed. |
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Keywords: | Tensile strength Fracture toughness |
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