A micro–macro constitutive model for rock considering breakage effects

Yu, Di; Liu, Enlong; Xiang, Bo; He, Yunyong; Luo, Fei; He, Chuan

doi:10.1016/j.ijmst.2022.09.027

Cited by 16 publications

(1 citation statement)

References 43 publications

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“…17 Some scholars investigated the theoretical foundations of mechanical constitutive modelling of porous polycrystalline ceramics under deformation. [18][19][20][21] The specimen failure and crack kinking are caused by the elastic phase, the formation of dislocation bands, the commencement of microcracks, and the crack-development stage. 21 They also predicted mesoscale porous ceramic mechanical behavior.…”

Section: Introductionmentioning

confidence: 99%

Experimental-theoretical comparative analysis of PLA-based 3D lattice

Singh

Farina

et al. 2023

Journal of Thermoplastic Composite Materials

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Lattice materials are one of the most desirable and widely used materials due to the characteristics derived from their geometrical formation as opposed to their chemical composition. In this article, a lattice material has been designed and printed using polymer filament wire made of polylactic acid (PLA) and fused deposition modelling (FDM), followed by mechanical testing. In addition, tensile testing of the PLA printed samples has also been carried out to ascertain the tensile properties of the material in use, and the material has shown 38–40 MPa tensile strength with a Young’s modulus value of 1538 ± 120 MPa. The lattice was designed using 3D CAD software, and numerical results were obtained using the Autodesk Inventor simulation module. In addition to the experimental test, theoretical tests were also conducted, and the results were compared to the experimental results. With this methodology, the lattice material failure process can be comprehended. Along with the lattices, the PLA tensile test samples were also prepared and tested to check the feasibility of the PLA being used and ascertain the properties. In addition, it has been observed that after a specific load and deformation, the material’s resistance increases due to its increased density and repeated cell interference. The major purpose of the study is to explore the aspects and feasibility of the PLA printed lattice material with complex shapes and explore the application potential of such shapes.

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