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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Numerical support for analysis of the fatigue behavior of cement based composites
 Viszlay, Viliam ; Keršner, Zbyněk (referee) ; Seitl, Stanislav (advisor)
This thesis is focused on numerical analysis of fracture mechanics parameters in modified compact tension (CT) test. This CT test appears to be a suitable alternative to classic compact tension test for using for testing of quasi-brittle materials. The classic compact tension test is commonly used for fatigue testing of metallic materials and the geometry of used specimens does not allow using this test for quasi-brittle materials like cement based composites. The modified version of this test with cylindrical shape of the specimen allows us to test fatigue behaviour of quasi-brittle materials. In this thesis the influence of the modification of classic CT test on fracture mechanic parameters are determinated. In the next step, the influence of the position of steel bars (the position of loading force) on fracture mechanic parameters are evaluated. Obtained values are presented in graphs and calibration polynomials for each geometry are proposed.
Detailed record
Numerical support for analysis of the fatigue behavior of cement based composites
 Viszlay, Viliam ; Keršner, Zbyněk (referee) ; Seitl, Stanislav (advisor)
This thesis is focused on numerical analysis of fracture mechanics parameters in modified compact tension (CT) test. This CT test appears to be a suitable alternative to classic compact tension test for using for testing of quasi-brittle materials. The classic compact tension test is commonly used for fatigue testing of metallic materials and the geometry of used specimens does not allow using this test for quasi-brittle materials like cement based composites. The modified version of this test with cylindrical shape of the specimen allows us to test fatigue behaviour of quasi-brittle materials. In this thesis the influence of the modification of classic CT test on fracture mechanic parameters are determinated. In the next step, the influence of the position of steel bars (the position of loading force) on fracture mechanic parameters are evaluated. Obtained values are presented in graphs and calibration polynomials for each geometry are proposed.
Detailed record

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