Quasi-static and dynamic experimental studies on the tensile strength and failure pattern of concrete and mortar discs.

ABSTRACT: As concrete and mortar materials widely used in structural engineering may suffer dynamic loadings, studies on their mechanical properties under different strain rates are of great importance. In this paper, based on splitting tests of Brazilian discs, the tensile strength and failure pattern of concrete and mortar were investigated under quasi-static and dynamic loadings with a strain rate of 1-200 s^-1. It is shown that the quasi-static tensile strength of mortar is higher than that of concrete since coarse aggregates weaken the interface bonding strength of the latter. Numerical results confirmed that the plane stress hypothesis lead to a lower value tensile strength for the cylindrical specimens. With the increase of strain rates, dynamic tensile strengths of concrete and mor

SUBMITTER: Jin X 

PROVIDER: S-EPMC5681700 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature