Study on flexural properties of 3D printing functionally graded lattice structure cement composites

Xinyu Zhang; Peng Liu; Linmei Wu

doi:10.1016/j.matlet.2024.137231

Study on flexural properties of 3D printing functionally graded lattice structure cement composites

Xinyu Zhang, Peng Liu, Linmei Wu

Mechanical Engineering

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

Abstract

Concrete is widely used in construction due to its superior performance but has limited ductility. This investigation aims to enhance ductility by incorporating 3D-printed polymer-reinforced cement composites. We explored functionally graded triply periodic minimal surfaces (TPMS) lattice structures, fabricated using photo-curing 3D printing with ABS-like resins in a cementitious matrix. These lattice structures feature varying relative densities for optimized toughness. Three-point bending tests and digital image correlation (DIC) revealed notable enhancements in flexural properties and crack resistance. The Gyroid50-30 structure increased flexural toughness by 88.6% compared to normal cement mortar. Gyroid60-20 and Gyroid40-40 groups, with different density gradients, showed improvements of 499.2% and 389.8%, respectively. This research suggests that tailoring lattice shape and density gradient can effectively optimize flexural performance.

Original language	English
Article number	137231
Number of pages	4
Journal	Materials Letters
Volume	375
Early online date	22 Aug 2024
DOIs	https://doi.org/10.1016/j.matlet.2024.137231
Publication status	E-pub ahead of print - 22 Aug 2024

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title = "Study on flexural properties of 3D printing functionally graded lattice structure cement composites",

abstract = "Concrete is widely used in construction due to its superior performance but has limited ductility. This investigation aims to enhance ductility by incorporating 3D-printed polymer-reinforced cement composites. We explored functionally graded triply periodic minimal surfaces (TPMS) lattice structures, fabricated using photo-curing 3D printing with ABS-like resins in a cementitious matrix. These lattice structures feature varying relative densities for optimized toughness. Three-point bending tests and digital image correlation (DIC) revealed notable enhancements in flexural properties and crack resistance. The Gyroid50-30 structure increased flexural toughness by 88.6% compared to normal cement mortar. Gyroid60-20 and Gyroid40-40 groups, with different density gradients, showed improvements of 499.2% and 389.8%, respectively. This research suggests that tailoring lattice shape and density gradient can effectively optimize flexural performance.",

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T1 - Study on flexural properties of 3D printing functionally graded lattice structure cement composites

AU - Zhang, Xinyu

AU - Liu, Peng

AU - Wu, Linmei

PY - 2024/8/22

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N2 - Concrete is widely used in construction due to its superior performance but has limited ductility. This investigation aims to enhance ductility by incorporating 3D-printed polymer-reinforced cement composites. We explored functionally graded triply periodic minimal surfaces (TPMS) lattice structures, fabricated using photo-curing 3D printing with ABS-like resins in a cementitious matrix. These lattice structures feature varying relative densities for optimized toughness. Three-point bending tests and digital image correlation (DIC) revealed notable enhancements in flexural properties and crack resistance. The Gyroid50-30 structure increased flexural toughness by 88.6% compared to normal cement mortar. Gyroid60-20 and Gyroid40-40 groups, with different density gradients, showed improvements of 499.2% and 389.8%, respectively. This research suggests that tailoring lattice shape and density gradient can effectively optimize flexural performance.

AB - Concrete is widely used in construction due to its superior performance but has limited ductility. This investigation aims to enhance ductility by incorporating 3D-printed polymer-reinforced cement composites. We explored functionally graded triply periodic minimal surfaces (TPMS) lattice structures, fabricated using photo-curing 3D printing with ABS-like resins in a cementitious matrix. These lattice structures feature varying relative densities for optimized toughness. Three-point bending tests and digital image correlation (DIC) revealed notable enhancements in flexural properties and crack resistance. The Gyroid50-30 structure increased flexural toughness by 88.6% compared to normal cement mortar. Gyroid60-20 and Gyroid40-40 groups, with different density gradients, showed improvements of 499.2% and 389.8%, respectively. This research suggests that tailoring lattice shape and density gradient can effectively optimize flexural performance.

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KW - DIC

KW - Flexural toughness

KW - Polymers

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Study on flexural properties of 3D printing functionally graded lattice structure cement composites

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