TY - GEN
T1 - Numerical damage modelling of macro-synthetic fibre reinforced concrete
AU - Kahagala Hewage, Dayani
AU - Camille, Christophe
AU - Mirza, Olivia
AU - Mashiri, Fidelis
AU - Kirkland, Brendan
AU - Clarke, Todd
PY - 2021
Y1 - 2021
N2 - ![CDATA[Macro-synthetic fibre reinforcement for concrete applications is gaining popularity in the construction industry owing to its’ advanced development towards higher mechanical properties, electrical and corrosion resistance. However, the main drawback of the effective application of macro-synthetic fibre reinforced concrete (MSFRC) is the limited analysis procedures adopted from the existing concrete behavioural models and guidelines. Indeed, the behaviour of MSFRC is mainly characterised by the post-cracking hardening/softening, which significantly differs from the brittle nature of plain concrete. Currently, material models which are available for the numerical modelling of steel fibre reinforced concrete (SFRC) characterises the hardening and softening behaviour immediately after the limit of proportionality. In regards with MSFRC modelling, the initial frictional slippage of fibres causes an instantaneous reduction in the tensile stress (i.e. post-cracking phase), wherein which the damage evolution requires a distinctive approach. Therefore, the paper herein focuses on reviewing the adoptability of current models and evaluate the sensitivity of damage parameters in macro-scale analysis. As a result, this paper provides significant insights into the different parameters and calibrations required towards the recognition of the MSFRC material model in the finite element analysis.]]
AB - ![CDATA[Macro-synthetic fibre reinforcement for concrete applications is gaining popularity in the construction industry owing to its’ advanced development towards higher mechanical properties, electrical and corrosion resistance. However, the main drawback of the effective application of macro-synthetic fibre reinforced concrete (MSFRC) is the limited analysis procedures adopted from the existing concrete behavioural models and guidelines. Indeed, the behaviour of MSFRC is mainly characterised by the post-cracking hardening/softening, which significantly differs from the brittle nature of plain concrete. Currently, material models which are available for the numerical modelling of steel fibre reinforced concrete (SFRC) characterises the hardening and softening behaviour immediately after the limit of proportionality. In regards with MSFRC modelling, the initial frictional slippage of fibres causes an instantaneous reduction in the tensile stress (i.e. post-cracking phase), wherein which the damage evolution requires a distinctive approach. Therefore, the paper herein focuses on reviewing the adoptability of current models and evaluate the sensitivity of damage parameters in macro-scale analysis. As a result, this paper provides significant insights into the different parameters and calibrations required towards the recognition of the MSFRC material model in the finite element analysis.]]
KW - fiber-reinforced concrete
KW - mathematical models
KW - mechanical properties
UR - http://hdl.handle.net/1959.7/uws:57943
U2 - 10.1007/978-3-030-58482-5_50
DO - 10.1007/978-3-030-58482-5_50
M3 - Conference Paper
SN - 9783030584818
SP - 548
EP - 557
BT - Fibre Reinforced Concrete: Improvements and Innovations: RILEM-fib International Symposium on FRC (BEFIB) in 2020, 20 - 22 September 2021
PB - Springer
T2 - International Symposium on Fiber Reinforced Concrete
Y2 - 20 September 2021
ER -