What are the experimental techniques used to study the size effect at quasistatic conditions in materials?
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Experimental techniques used to study the size effect at quasistatic conditions in materials include uniaxial compression tests on specimens of varying sizes and shapes, such as cubes and cylinders . These tests measure changes in compressive strength with variations in specimen dimensions, revealing how the failure modes, stress distribution, and strength of the material are influenced by size. Additionally, the Weibull distribution formula is employed to express specimen size by volume and calculate rock strength based on different volumes, aiding in understanding the size-dependent behavior of materials under quasistatic loading conditions . The experiments also consider the impact of stress concentration zones near material inhomogeneities, such as pores and cutouts, on the material's strength, highlighting the importance of boundary conditions in predicting fracture behavior .
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01 Dec 2022 8 Citations | Experimental techniques for studying size effect in quasi-brittle geomaterials include analyzing nominal strength, fracture toughness, effective fracture energy, and fracture process zone size through systematic fracture experiments. |
10 Citations | The experimental technique used is the electrostatic pull-in instability method to study the size-dependent effective Young's modulus in materials under quasistatic conditions. |
2 Citations | Experimental techniques such as non-uniformly distributed compression were used to study the size effect on quasi-brittle geomaterials with circular holes under quasistatic conditions. |
| Experimental techniques for studying the size effect at quasistatic conditions in materials include uniaxial compression tests using an RMT testing machine and an SPHB impact testing machine. | |
| Experimental techniques involved uniaxial quasi-static compression tests on carbon fiber reinforced concrete specimens of varying sizes and fiber volume contents to analyze the size effect on compressive strength. |
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