Junior, IssanPaula, António MiguelGonçalves, JoséBraz-César, Manuel2023-01-132023-01-132020Junior, Issan; Paula, António Miguel; Gonçalves, José; Braz-César, Manuel (2020). Direct shear tests: experimental setup based on a labview approach – experimental results in a silty sand soil. In 7th International Conference – IRF2020 – Integrity-Reliability-Failure. Funchal/Portugalhttp://hdl.handle.net/10198/26499This work describes an experimental setup that was developed in order to automate the direct shear Tests, to characterize the strength of soils. This experimental setup assures repeatability in the data acquisition, avoiding human errors, mainly when the tests data vary with a high dynamic. The described setup is based on LabVIEW, LVDT sensors and a 16 Bit Data Acquisition Board. For the direct shear Test it was used an apparatus, covered in ASTM standard D-3080 / D3080M - 11, ”Standard Method for direct shear test on soils under consolidated drained conditions”. This paper exposes the applicability study of the direct shear test to an existing silty sand soil, from the city of Braganza, Portugal, with the purpose to verify the applicability of this test with this instrumented apparatus. The results obtained and de main conclusions are presented.engDirect shear testMechanical characterization of soilsLabVIEWconference object