Early age mechanical behaviour of 3D printed concrete: Numerical modelling and experimental testing (2024)

Wolfs, R. J. M., Bos, F. P. (2018). Early age mechanical behaviour of 3D printed concrete: Numerical modelling and experimental testing. Cement and Concrete Research, 106(April 2018), 103-116. https://doi.org/10.1016/j.cemconres.2018.02.001

Wolfs, R.J.M. ; Bos, F.P. ; Salet, T.A.M. / Early age mechanical behaviour of 3D printed concrete : Numerical modelling and experimental testing. In: Cement and Concrete Research. 2018 ; Vol. 106, No. April 2018. pp. 103-116.

@article{be33daf46ff74490825cdbbfbdd3b859,

title = "Early age mechanical behaviour of 3D printed concrete: Numerical modelling and experimental testing",

abstract = "A numerical model was developed to analyse the mechanical behaviour of fresh, 3D printed concrete, in the range of 0 to 90 min after material deposition. The model was based on a time-dependent Mohr-Coulomb failure criterion and linear stress-strain behaviour up to failure. An experimental program, consisting of unconfined uniaxial compression tests and direct shear tests, was set-up and performed to obtain the required material properties. The material tests showed that the Young's modulus and cohesion linearly increase with fresh concrete age, as do the compressive and shear strength. The Poisson's ratio and angle of internal friction, on the other hand, remain constant. Subsequently, the model was validated by comparison to printing experiments. Modelling of the printed samples reproduced the experimental results qualitatively, but the quantitative agreement with the print experiments could be improved. However, the deviations can well be explained and the type of failure-deformation mode was predicted accurately.",

keywords = "3D printing, Experimental validation, Finite element modelling, Fresh concrete, Mechanical properties",

author = "R.J.M. Wolfs and F.P. Bos and T.A.M. Salet",

year = "2018",

month = feb,

day = "9",

doi = "10.1016/j.cemconres.2018.02.001",

language = "English",

volume = "106",

pages = "103--116",

journal = "Cement and Concrete Research",

issn = "0008-8846",

publisher = "Elsevier",

number = "April 2018",

}

Wolfs, RJM, Bos, FP 2018, 'Early age mechanical behaviour of 3D printed concrete: Numerical modelling and experimental testing', Cement and Concrete Research, vol. 106, no. April 2018, pp. 103-116. https://doi.org/10.1016/j.cemconres.2018.02.001

Early age mechanical behaviour of 3D printed concrete: Numerical modelling and experimental testing. / Wolfs, R.J.M.; Bos, F.P.; Salet, T.A.M.
In: Cement and Concrete Research, Vol. 106, No. April 2018, 09.02.2018, p. 103-116.

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

TY - JOUR

T1 - Early age mechanical behaviour of 3D printed concrete

T2 - Numerical modelling and experimental testing

AU - Wolfs, R.J.M.

AU - Bos, F.P.

AU - Salet, T.A.M.

PY - 2018/2/9

Y1 - 2018/2/9

N2 - A numerical model was developed to analyse the mechanical behaviour of fresh, 3D printed concrete, in the range of 0 to 90 min after material deposition. The model was based on a time-dependent Mohr-Coulomb failure criterion and linear stress-strain behaviour up to failure. An experimental program, consisting of unconfined uniaxial compression tests and direct shear tests, was set-up and performed to obtain the required material properties. The material tests showed that the Young's modulus and cohesion linearly increase with fresh concrete age, as do the compressive and shear strength. The Poisson's ratio and angle of internal friction, on the other hand, remain constant. Subsequently, the model was validated by comparison to printing experiments. Modelling of the printed samples reproduced the experimental results qualitatively, but the quantitative agreement with the print experiments could be improved. However, the deviations can well be explained and the type of failure-deformation mode was predicted accurately.

AB - A numerical model was developed to analyse the mechanical behaviour of fresh, 3D printed concrete, in the range of 0 to 90 min after material deposition. The model was based on a time-dependent Mohr-Coulomb failure criterion and linear stress-strain behaviour up to failure. An experimental program, consisting of unconfined uniaxial compression tests and direct shear tests, was set-up and performed to obtain the required material properties. The material tests showed that the Young's modulus and cohesion linearly increase with fresh concrete age, as do the compressive and shear strength. The Poisson's ratio and angle of internal friction, on the other hand, remain constant. Subsequently, the model was validated by comparison to printing experiments. Modelling of the printed samples reproduced the experimental results qualitatively, but the quantitative agreement with the print experiments could be improved. However, the deviations can well be explained and the type of failure-deformation mode was predicted accurately.

KW - 3D printing

KW - Experimental validation

KW - Finite element modelling

KW - Fresh concrete

KW - Mechanical properties

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Wolfs RJM, Bos FP, Salet TAM. Early age mechanical behaviour of 3D printed concrete: Numerical modelling and experimental testing. Cement and Concrete Research. 2018 Feb 9;106(April 2018):103-116. doi: 10.1016/j.cemconres.2018.02.001