Numerical Analysis of 3DPC Interface Machanical Performance and Its Influence on Material Elastic Constants

Abstract

Abstract: A numerical simulation method for anisotropy of 3D printed concrete (3DPC) based on interface model was proposed by applying micromechanics theory of composite materials. This method quantitatively revealed the mechanical behavior of layer/filament interface and its influence on anisotropic elastic constants of 3DPC. By combining interface elements and continuum elements, the interface sliding-cracking behavior and mechanical properties of printed filament were simulated. Uniaxial compression, splitting tension, cross-bonded tension, and inclined shear tests were designed to determine the parameters and corresponding ranges required for model. The research shows that the interface tensile and shear traction-separation curves exhibit a bilinear characteristic, and the strength of filament interface is generally higher than that of layer interface. There is no significant difference in shear behavior in two shear principal directions. The elastic modulus between filament and layer has a linear impact on overall elastic modulus and has an exponential impact on Poisson’s ratio. The shear modulus between filament and layer has a comprehensive impact on overall shear modulus.

Key words: 3D printed concrete, interface performance, anisotropic elasticity, constitutive model, cohesive zone model

CLC Number:

TU501

CHEN Zhaohui, GERONG Wangdui, WANG Pengfei, ZHANG Xiaoyue, ZHANG Zhigang, LIAO Minmao. Numerical Analysis of 3DPC Interface Machanical Performance and Its Influence on Material Elastic Constants[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(5): 1713-1722.

References

[1] LIU D W, ZHANG Z G, ZHANG X Y, et al. 3D printing concrete structures: state of the art, challenges, and opportunities[J]. Construction and Building Materials, 2023, 405: 133364.
[2] GENG Z F, SHE W, ZUO W Q, et al. Layer-interface properties in 3D printed concrete: dual hierarchical structure and micromechanical characterization[J]. Cement and Concrete Research, 2020, 138: 106220.
[3] NERELLA V N, HEMPEL S, MECHTCHERINE V. Effects of layer-interface properties on mechanical performance of concrete elements produced by extrusion-based 3D-printing[J]. Construction and Building Materials, 2019, 205: 586-601.
[4] YU S W, XIA M, SANJAYAN J, et al. Microstructural characterization of 3D printed concrete[J]. Journal of Building Engineering, 2021, 44: 102948.
[5] RAHUL A V, SANTHANAM M, MEENA H, et al. Mechanical characterization of 3D printable concrete[J]. Construction and Building Materials, 2019, 227: 116710.
[6] 张静, 邹道勤, 王海龙, 等. 3D打印混凝土层条间界面抗拉性能与本构模型[J]. 浙江大学学报(工学版), 2021, 55(11): 2178-2185+2214.
ZHANG J, ZOU D Q, WANG H L, et al. Bond tensile performance and constitutive models of interfaces between vertical and horizontal filaments of 3D printed concrete[J]. Journal of Zhejiang University (Engineering Science), 2021, 55(11): 2178-2185+2214 (in Chinese).
[7] NAPOLITANO R, MENNA C, FORNI D, et al. Dynamic behaviour of layered 3D printed concrete elements[C]//RILEM International Conference on Concrete and Digital Fabrication. Cham: Springer, 2020: 478-488.
[8] SANJAYAN J G, NEMATOLLAHI B, XIA M, et al. Effect of surface moisture on inter-layer strength of 3D printed concrete[J]. Construction and Building Materials, 2018, 172: 468-475.
[9] 刘致远, 王振地, 王玲, 等. 3D打印水泥净浆层间拉伸强度及层间剪切强度[J]. 硅酸盐学报, 2019, 47(5): 648-652.
LIU Z Y, WANG Z D, WANG L, et al. Interlayer bond strength of 3D printing cement paste by cross-bonded method[J]. Journal of the Chinese Ceramic Society, 2019, 47(5): 648-652 (in Chinese).
[10] MOELICH G M, KRUGER J, COMBRINCK R. Modelling the interlayer bond strength of 3D printed concrete with surface moisture[J]. Cement and Concrete Research, 2021, 150: 106559.
[11] YAO H, XIE Z L, LI Z M, et al. The relationship between the rheological behavior and interlayer bonding properties of 3D printing cementitious materials with the addition of attapulgite[J]. Construction and Building Materials, 2022, 316: 125809.
[12] VAN DEN HEEVER M, BESTER F, KRUGER J, et al. Numerical modelling strategies for reinforced 3D concrete printed elements[J]. Additive Manufacturing, 2022, 50: 102569.
[13] PAN Z F, SI D D, TAO J H, et al. Compressive behavior of 3D printed concrete with different printing paths and concrete ages[J]. Case Studies in Construction Materials, 2023, 18: e01949.
[14] YANG Y K, WU C Q, LIU Z X. Rate dependent behaviour of 3D printed ultra-high performance fibre-reinforced concrete under dynamic splitting tensile[J]. Composite Structures, 2023, 309: 116727.
[15] VALLE-PELLO P, ÁLVAREZ-RABANAL F P, ALONSO-MARTÍNEZ M, et al. Numerical study of the interfaces of 3D-printed concrete using discrete element method[J]. Materials Science & Engineering Technology, 2019, 50: 629-634.
[16] WANG L, JIANG H L, LI Z J, et al. Mechanical behaviors of 3D printed lightweight concrete structure with hollow section[J]. Archives of Civil and Mechanical Engineering, 2020, 20(1): 16.
[17] DEN-HEEVER M V, ANTON D P, FREDERICK B, et al. A mechanistic evaluation relating microstructural morphology to a modified Mohr-Griffith compression-shear constitutive model for 3D printed concrete[J]. Construction and Building Materials, 2022, 325: 126743.
[18] VAN DEN HEEVER M, BESTER F, POURBEH M, et al. Characterizing the fissility of 3D concrete printed elements via the cohesive zone method[C]. Second RILEM International Conference on Concrete and Digital Fabrication. Springer, Cham, 2020: 489-499.
[19] XIAO J Z, LIU H R, DING T. Finite element analysis on the anisotropic behavior of 3D printed concrete under compression and flexure[J]. Additive Manufacturing, 2021, 39: 101712.
[20] 中华人民共和国住房和城乡建设部, 国家市场监督管理总局. 混凝土物理力学性能试验方法标准: GB/T 50081—2019[S]. 北京: 中国建筑工业出版社, 2019.
Ministry of Housing and Urban-Rural Development of the People's Republic of China, State Administration for Market Supervision and Administration. Standards for test methods of physical and mechanical properties of concrete: GB/T 50081—2019[S]. Beijing: China Construction Industry Publishing House, 2019 (in Chinese).
[21] 国家质量监督检验检疫总局, 中国国家标准化管理委员会. 精细陶瓷界面拉伸和剪切粘结强度试验方法十字交叉法: GB/T 31541—2015[S]. 北京: 中国标准出版社, 2016.
Standardization Administration of China. Test method for interfacial bond strength of fine ceramic materials: cross-bonded: GB/T 31541—2015[S]. Beijing: Standard Press of China, 2016 (in Chinese).
[22] LUBLINER J, OLIVER J, OLLER S, et al. A plastic-damage model for concrete[J]. International Journal of Solids and Structures, 1989, 25(3): 299-326.
[23] HILLERBORG A, MODÉER M, PETERSSON P E. Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements[J]. Cement and Concrete Research, 1976, 6: 773-781.
[24] WANG H L, SHAO J W, ZHANG J, et al. Bond shear performances and constitutive model of interfaces between vertical and horizontal filaments of 3D printed concrete[J]. Construction and Building Materials, 2022, 316: 125819.