Analysis of Influencing Factors on Intrinsic Length of Clay in Tianhe District of Guangzhou

Abstract:

In order to obtain the influencing factors and behavior of the intrinsic length of clay in Tianhe District of Guangzhou, different specimens are fabricated by the mixing clay and quartz sand in Tianhe District. Using the triaxial shear test results, the intrinsic lengths of different samples are determined. The results show that the liquidity index of matrix has little effect on the intrinsic length. The intrinsic length increases linearly with increasing reinforcing particle content. The larger the content is, in reinforcing particle the larger the decrease is in intrinsic length. The intrinsic length decreases with increased reinforcing particle size.

• Periodical: Advanced Materials Research (Volume 815)
• Pages: 279-284
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.815.279
• Online since: October 2013
• Authors: Yi Zhao Wang, Hai Hong Mo, Ying Guang Fang, Ren Guo Gu
• Keywords: Intrinsic Length, Matrix Material, Reinforcing Particle, Soil mechanics, Triaxial Shear Test

References

[1] Fleck N A, Hutchinson J W. A phenomenological theory for strain gradient effects in plasticity, J. Journal of the Mechanics and Physics of Solids. 1993, 41(12): 1825-1857.

DOI: 10.1016/0022-5096(93)90072-n

[2] Fleck N A, Hutchinson J W. Strain gradient plasticity, J. Advances in applied mechanics. 1997, 33: 295-361.

DOI: 10.1016/s0065-2156(08)70388-0

[3] Gao H, Huang Y, Nix W D, et al. Mechanism-based strain gradient plasticity- I. Theory, J. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS. 1999, 47(6): 1239-1263.

DOI: 10.1016/s0022-5096(98)00103-3

[4] Begley M R, Hutchinson J W. The mechanics of size-dependent indentation, J. Journal of the Mechanics and Physics of Solids. 1998, 46(10): 2049-(2068).

DOI: 10.1016/s0022-5096(98)00018-0

[5] Stölken J S, Evans A G. A microbend test method for measuring the plasticity length scale, J. Acta Materialia. 1998, 46(14): 5109-5115.

DOI: 10.1016/s1359-6454(98)00153-0

[6] Haque M A, Saif M. Strain gradient effect in nanoscale thin films, J. Acta Materialia. 2003, 51(11): 3053-3061.

DOI: 10.1016/s1359-6454(03)00116-2

[7] Pamin J. Gradient-dependent plasticity in numerical simulation of localization phenomena, J. (1994).

[8] de Borst R, Pamin J. Some Novel Developments in Finite Element Procedures for Gradient-Dependent Plasticity, J. International Journal for Numerical Methods in Engineering. 1996, 39: 2477-2505.

DOI: 10.1002/(sici)1097-0207(19960730)39:14<2477::aid-nme962>3.0.co;2-e

[9] Yuan H, Chen J. Identification of the intrinsic material length in gradient plasticity theory from micro-indentation tests, J. International journal of solids and structures. 2001, 38(46): 8171-8187.

DOI: 10.1016/s0020-7683(01)00121-4

[10] Faghihi D, Voyiadjis G Z. Determination of nanoindentation size effects and variable material intrinsic length scale for body-centered cubic metals, J. Mechanics of Materials. 2012, 44: 189-211.

DOI: 10.1016/j.mechmat.2011.07.002

[11] Abu Al-Rub R K, Voyiadjis G Z. Analytical and experimental determination of the material intrinsic length scale of strain gradient plasticity theory from micro-and nano-indentation experiments, J. International Journal of Plasticity. 2004, 20(6): 1139-1182.

DOI: 10.1016/j.ijplas.2003.10.007

[12] Voyiadjis G Z, Al-Rub R K A. Gradient plasticity theory with a variable length scale parameter, J. International Journal of Solids and Structures. 2005, 42(14): 3998-4029.

DOI: 10.1016/j.ijsolstr.2004.12.010

[13] Aifantis E C. Strain gradient interpretation of size effects, J. International Journal of Fracture. 1999, 95(1-4): 299-314.

DOI: 10.1007/978-94-011-4659-3_16

[14] Hezong L, Xianghuai D, Qian W, et al. Determination of material intrinsic length and strain gradient hardening in microbending process, J. International Journal of Solids and Structures. 2011, 48(1): 163-174.

DOI: 10.1016/j.ijsolstr.2010.09.016

[15] Ma W. The test research and numerical simulation in scale effect in soil, D. South China University of Technelogy, (2011).