Lattice materials with pyramidal hierarchy: Systematic analysis and three dimensional failure mechanism maps

Wu, Qianqian; Vaziri, Ashkan; Asl, Mohamad Eydani; Ghosh, Ranajay; Gao, Ying; Wei, Xingyu; Ma, Li; Xiong, Jian; Wu, Linzhi

doi:10.1016/j.jmps.2018.12.006

Cited by 73 publications

(15 citation statements)

References 31 publications

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“…2(k)]. [37,38] Most reported studies have been theoretical or computational in nature, with only few demonstrations of fabricated structures. [39] Moreover, studies on structural hierarchical lattices have focused to a large extent on stiffness and strength of lattice topologies that are inherently compliant and weak (e.g., 2D hexagonal lattices).…”

Section: Discussionmentioning

confidence: 99%

Integrating lattice materials science into the traditional processing-structure-properties paradigm

Zok

2019

MRS Communications

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Section: Discussionmentioning

confidence: 99%

Integrating lattice materials science into the traditional processing-structure-properties paradigm

Zok

2019

MRS Communications

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“…A sandwich structure, consisting of two face sheets with a cellular core, is a typical type of lightweight structure widely used in engineering. Several types of sandwich cores have been developed, such as honeycomb, metal foam, pyramidal truss, lattice material, and woven material [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. Conventional face sheets are mainly made from metal or composites.…”

Section: Introductionmentioning

confidence: 99%

The Plastic Behavior in the Large Deflection Response of Fiber Metal Laminate Sandwich Beams under Transverse Loading

et al. 2022

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The plastic behavior in the large deflection response of slender sandwich beams with fiber metal laminate (FML) face sheets and a metal foam core under transverse loading is studied. According to a modified rigid–perfectly plastic material approximation, an analytical model is developed, and simple formulae are obtained for the large deflection response of fully clamped FML sandwich beams, considering the interaction of bending and stretching. Finite element (FE) calculations are conducted, and analytical predictions capture numerical results reasonably in the plastic stage of large deflection. The influences of metal volume fraction, strength ratio of metal to composite layer, core strength, and punch size on the plastic behavior in the large deflection response of FML sandwich beams are discussed. It is suggested that, if the structural behavior of fiber-metal laminate sandwich beams is plasticity dominated, it is similar to that of metal sandwich beams. Moreover, both metal volume fraction and the strength ratio of metal to composite layer are found to be important for the plastic behavior in the large deflection response of fiber metal laminate sandwich beams, while core strength and punch size might have little influence on it.

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“…In fact, a systematic and deep understanding of quasi-static and dynamic loading behaviors of the NPR CCHTs is crucial to their practical applications. In addition, it is well known that geometric topology, i.e., the geometric parameters, could have a great influence on the mechanical behavior of metamaterials’ structures [ 50 , 51 , 52 , 53 , 54 , 55 ]. Nevertheless, reports on how will the geometrical parameters affect the mechanical properties of NPR CCHTs are still limited.…”

Section: Introductionmentioning

confidence: 99%

The 3D-Printed Honeycomb Metamaterials Tubes with Tunable Negative Poisson’s Ratio for High-Performance Static and Dynamic Mechanical Properties

et al. 2021

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The synthesized understanding of the mechanical properties of negative Poisson’s ratio (NPR) convex–concave honeycomb tubes (CCHTs) under quasi-static and dynamic compression loads is of great significance for their multifunctional applications in mechanical, aerospace, aircraft, and biomedical fields. In this paper, the quasi-static and dynamic compression tests of three kinds of 3D-printed NPR convex–concave honeycomb tubes are carried out. The sinusoidal honeycomb wall with equal mass is used to replace the cell wall structure of the conventional square honeycomb tube (CSHT). The influence of geometric morphology on the elastic modulus, peak force, energy absorption, and damage mode of the tube was discussed. The experimental results show that the NPR, peak force, failure mode, and energy absorption of CCHTs can be adjusted by changing the geometric topology of the sinusoidal element. Through the reasonable design of NPR, compared with the equal mass CSHTs, CCHTs could have the comprehensive advantages of relatively high stiffness and strength, enhanced energy absorption, and damage resistance. The results of this paper are expected to be meaningful for the optimization design of tubular structures widely used in mechanical, aerospace, vehicle, biomedical engineering, etc.

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Lattice materials with pyramidal hierarchy: Systematic analysis and three dimensional failure mechanism maps

Cited by 73 publications

References 31 publications

Integrating lattice materials science into the traditional processing-structure-properties paradigm

Integrating lattice materials science into the traditional processing-structure-properties paradigm

The Plastic Behavior in the Large Deflection Response of Fiber Metal Laminate Sandwich Beams under Transverse Loading

The 3D-Printed Honeycomb Metamaterials Tubes with Tunable Negative Poisson’s Ratio for High-Performance Static and Dynamic Mechanical Properties

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