eprintid: 10087397
rev_number: 17
eprint_status: archive
userid: 608
dir: disk0/10/08/73/97
datestamp: 2019-12-06 11:31:05
lastmod: 2020-08-02 06:10:37
status_changed: 2019-12-06 11:31:05
type: article
metadata_visibility: show
creators_name: Li, H
creators_name: Senetakis, K
creators_name: Coop, MR
title: Medium-strain dynamic behavior of fiber-reinforced sand subjected to stress anisotropy
ispublished: pub
divisions: UCL
divisions: A01
divisions: B04
divisions: C05
divisions: F44
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: A comprehensive database is established to investigate the behavior of polypropylene fiber reinforced sands under anisotropic stress state in a wide range of strain amplitudes from about 4 × 10−4% to 1.4 × 10−1%. A fixed-partly fixed Hardin-type resonant column which has a system that allows the specimen to be tested in resonance while maintaining an anisotropic loading path, is utilized. The results show important influence of the fiber content as well as the anisotropic stress state on the normalized modulus reduction and damping increase curves of the reinforced soils. Specifically, the increase of fiber content and stress ratio tend to increase the linearity in the normalized modulus reduction curves. On the other hand, the inclusion of fiber leads to the damping increase curves to shift to greater values, while the stress ratio has an opposite effect. An expression is proposed to predict the normalized shear modulus, as a function of mean effective confining pressure, stress ratio, coefficient of uniformity of the host sand and fiber content. The damping ratio, in a normalized form, is correlated with the normalized shear modulus reduction.
date: 2019-11
date_type: published
publisher: ELSEVIER SCI LTD
official_url: https://doi.org/10.1016/j.soildyn.2019.105764
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 1724273
doi: 10.1016/j.soildyn.2019.105764
lyricists_name: Coop, Matthew Richard
lyricists_id: MRCOO77
actors_name: Coop, Matthew Richard
actors_id: MRCOO77
actors_role: owner
full_text_status: public
publication: Soil Dynamics And Earthquake Engineering
volume: 126
article_number: 105764
pages: 15
citation:        Li, H;    Senetakis, K;    Coop, MR;      (2019)    Medium-strain dynamic behavior of fiber-reinforced sand subjected to stress anisotropy.                   Soil Dynamics And Earthquake Engineering , 126     , Article 105764.  10.1016/j.soildyn.2019.105764 <https://doi.org/10.1016/j.soildyn.2019.105764>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10087397/1/Li_Senetakis_Coop_SOILDYN.pdf