Strain-rate effects on the tensile behavior of strain-hardening cementitious composites

En Hua Yang; Victor C. Li

doi:10.1016/j.conbuildmat.2013.11.013

Strain-rate effects on the tensile behavior of strain-hardening cementitious composites

En Hua Yang^*, Victor C. Li

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

105 Citations (Scopus)

Abstract

This paper investigated the strain-rate effects on the tensile properties of strain-hardening cementitious composite (SHCC) and explored the underlying micromechanical sources responsible for the rate dependence. Experimental studies were carried out to reveal rate dependence in component phases, i.e. fiber, matrix, and fiber/matrix interface. A dynamic micromechanical model relating material microstructure to SHCC tensile strain-hardening under high loading rates was developed. It was found fiber stiffness, fiber strength, matrix toughness and fiber/matrix interface chemical bond strength were loading rate sensitive and they increase with loading rates in a polyvinyl alcohol fiber-reinforced SHCC (PVA-SHCC) system. These changes in component properties result in the reduction of tensile strain capacity of PVA-SHCC as the strain-rate increases from 10^-5 to 10^-1 s ^-1.

Original language	English
Pages (from-to)	96-104
Number of pages	9
Journal	Construction and Building Materials
Volume	52
DOIs	https://doi.org/10.1016/j.conbuildmat.2013.11.013
Publication status	Published - Feb 15 2014
Externally published	Yes

ASJC Scopus Subject Areas

Civil and Structural Engineering
Building and Construction
General Materials Science

Keywords

Micromechanics
SHCC
Strain-hardening cementitious composites
Strain-rate effects

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10.1016/j.conbuildmat.2013.11.013

Cite this

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title = "Strain-rate effects on the tensile behavior of strain-hardening cementitious composites",

abstract = "This paper investigated the strain-rate effects on the tensile properties of strain-hardening cementitious composite (SHCC) and explored the underlying micromechanical sources responsible for the rate dependence. Experimental studies were carried out to reveal rate dependence in component phases, i.e. fiber, matrix, and fiber/matrix interface. A dynamic micromechanical model relating material microstructure to SHCC tensile strain-hardening under high loading rates was developed. It was found fiber stiffness, fiber strength, matrix toughness and fiber/matrix interface chemical bond strength were loading rate sensitive and they increase with loading rates in a polyvinyl alcohol fiber-reinforced SHCC (PVA-SHCC) system. These changes in component properties result in the reduction of tensile strain capacity of PVA-SHCC as the strain-rate increases from 10-5 to 10-1 s -1.",

keywords = "Micromechanics, SHCC, Strain-hardening cementitious composites, Strain-rate effects",

author = "Yang, {En Hua} and Li, {Victor C.}",

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doi = "10.1016/j.conbuildmat.2013.11.013",

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journal = "Construction and Building Materials",

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TY - JOUR

T1 - Strain-rate effects on the tensile behavior of strain-hardening cementitious composites

AU - Yang, En Hua

AU - Li, Victor C.

PY - 2014/2/15

Y1 - 2014/2/15

N2 - This paper investigated the strain-rate effects on the tensile properties of strain-hardening cementitious composite (SHCC) and explored the underlying micromechanical sources responsible for the rate dependence. Experimental studies were carried out to reveal rate dependence in component phases, i.e. fiber, matrix, and fiber/matrix interface. A dynamic micromechanical model relating material microstructure to SHCC tensile strain-hardening under high loading rates was developed. It was found fiber stiffness, fiber strength, matrix toughness and fiber/matrix interface chemical bond strength were loading rate sensitive and they increase with loading rates in a polyvinyl alcohol fiber-reinforced SHCC (PVA-SHCC) system. These changes in component properties result in the reduction of tensile strain capacity of PVA-SHCC as the strain-rate increases from 10-5 to 10-1 s -1.

AB - This paper investigated the strain-rate effects on the tensile properties of strain-hardening cementitious composite (SHCC) and explored the underlying micromechanical sources responsible for the rate dependence. Experimental studies were carried out to reveal rate dependence in component phases, i.e. fiber, matrix, and fiber/matrix interface. A dynamic micromechanical model relating material microstructure to SHCC tensile strain-hardening under high loading rates was developed. It was found fiber stiffness, fiber strength, matrix toughness and fiber/matrix interface chemical bond strength were loading rate sensitive and they increase with loading rates in a polyvinyl alcohol fiber-reinforced SHCC (PVA-SHCC) system. These changes in component properties result in the reduction of tensile strain capacity of PVA-SHCC as the strain-rate increases from 10-5 to 10-1 s -1.

KW - Micromechanics

KW - SHCC

KW - Strain-hardening cementitious composites

KW - Strain-rate effects

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DO - 10.1016/j.conbuildmat.2013.11.013

M3 - Article

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SN - 0950-0618

VL - 52

SP - 96

EP - 104

JO - Construction and Building Materials

JF - Construction and Building Materials

ER -

Strain-rate effects on the tensile behavior of strain-hardening cementitious composites

Abstract

ASJC Scopus Subject Areas

Keywords

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