A Simple Unconsolidated Undrained Triaxial Compression Test Emulator

Abstract:

An unconsolidated undrained (UU) test is one type of triaxial compression tests based on the nature of loading and drainage conditions. In order to imitate the UU triaxial compression tests, a UU triaxial emulator with a graphical user interface (GUI) was developed. It has 5 deformation sensors (4 radial deformations and one vertical deformation) and one axial pressure sensor. In addition, other inputs of the emulator are the cell pressure, the height of sample, and the diameter of sample, which are provided by the user. The emulator also facilitates the analysis and storage of measurement data. Deformation data fed to the emulator were obtained from real measurements [H. Nawir, Viscous effects on yielding characteristics of sand in triaxial compression, Dissertation, Civil Eng. Dept., The University of Tokyo, 2002]. Using the measurement data, the stress vs radial strain, stress vs vertical strain, and Mohr-Coulomb circle curves were obtained and displayed by the emulator.

• Periodical: Applied Mechanics and Materials (Volume 771)
• Pages: 104-107
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.771.104
• Online since: July 2015
• Authors: Riska Ekawita*, Hasbullah Nawir, Suprijadi Suprijadi, Khairurrijal Khairurrijal
• Keywords: Deformation, Emulator, Mohr-Coulomb Circle, Triaxial, Unconsolidated, Undrained

References

[1] M. Cakir, A graphic user interface for evaluation of the camera parameters, Comput. Appl. Eng. Educ. 21 (2013) 147–157.

DOI: 10.1002/cae.20457

[2] E. Jallas, R. Sequeira, P. Martin, S. Turner, P. Papajorgji, Mechanistic virtual modeling: coupling a plant simulation model with a three-dimensional plant architecture component, Environ. Model. Assess. 14 (2009) 29-45.

DOI: 10.1007/s10666-008-9164-4

[3] O. Clatz, M. Sermesant, P. -Y. Bondiau, H. Delingette, S.K. Warfield, G. Malandain, N. Ayache, Realistic simulation of the 3-D growth of brain tumors in MR images coupling diffusion with biomechanical deformation, IEEE T. Med. Imaging 24(2005).

DOI: 10.1109/tmi.2005.857217

[4] J. P. Mattern, K. Fennel, M. Dowd, Estimating time-dependent parameters for a biological ocean model using an emulator approach, J. Marine Syst. 96–97 (2012) 32–47.

DOI: 10.1016/j.jmarsys.2012.01.015

[5] F. Martinez, L. C. Herrero, S. D. Pablo, Open loop wind turbine emulator, Renew. Energ. 63 (2014) 212-221.

DOI: 10.1016/j.renene.2013.09.019

[6] N. Margvelashvili, J. Andrewartha, M. Herzfeld, B. J. Robson, V. E Brando, Satellite data assimilation and estimation of a 3D coastal sediment transport model using error-subspace emulators, Environ. Modell. Softw. 40 (2013) 191-201.

DOI: 10.1016/j.envsoft.2012.09.009

[7] M. Singh, A. Raj, B. Singh, Modified Mohr–Coulomb criterion for non-linear triaxial and polyaxial strength of jointed rocks, Int. J. Rock. Mech. Min 51 (2012) 43–52.

DOI: 10.1016/j.ijrmms.2011.12.007

[8] S. J. Lee, Y. M. A. Hashash, E. G. Nezami, Simulation of triaxial compression tests with polyhedral discrete elements, Comput. Geotech. 43 (2012) 92–100.

DOI: 10.1016/j.compgeo.2012.02.011

[9] H. Nawir, Viscous effects on yielding characteristics of sand in triaxial compression, Dissertation, Civil Engineering Department, The University of Tokyo, (2002).

[10] J. V. Stafford, E. Audsley, J. R. Sharp, The determination of best fit linear failure envelopes to Mohr circles", J. Agr. Eng. Res. 33 (1986) 33-38.

DOI: 10.1016/s0021-8634(86)80027-0

[11] M. Singh, A. Raj, B. Singh, Modified Mohr–Coulomb criterion for non-linear triaxial and polyaxial strength of intact rocks, Int. J. Rock. Mech. Min 48 (2011) 546–555.

DOI: 10.1016/j.ijrmms.2011.02.004

[12] R. Ekawita, M. M. Munir, Suprijadi, H. Nawir, Khairurrijal, A comprehensive characterization of a linear deformation sensor for applications in triaxial compression tests, Proc. 2013 Int. Conf. Computer, Control, Informatics and Its Appl. (2013).

DOI: 10.1109/ic3ina.2013.6819172