The behavior of a functionally graded origami structure subjected to quasi-static compression

Yuan, Lin; Dai, Huaping; Song, Jichao; Ma, Jun; Chen, Yan

doi:10.1016/j.matdes.2020.108494

Cited by 67 publications

(17 citation statements)

References 36 publications

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“…Miura‐Ori is one of the most studied types of origami structures. [ 96 ] 2D‐ (gradient along x ‐direction) and 3D (gradient along x ‐ and z ‐directions)‐graded origami structures based on the Miura‐Ori pattern were studied under quasistatic compressive loading conditions by Yuan et al [ 97 ] It was observed that there was a sequence of buckling and collapse throughout the rows, which originated as a result of the innate self‐locking graded geometry. Kirigami is another variation of origami that includes cutting the paper creases in conjunction with folding to create cellular tessellations.…”

Section: Density‐graded Cellular Solidsmentioning

confidence: 99%

Density‐Graded Cellular Solids: Mechanics, Fabrication, and Applications

et al. 2021

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Cellular solids have gained extensive popularity in different areas of engineering due to their unique physical and mechanical properties. Recent advancements in manufacturing technologies have led to the development of cellular solids with highly controllable microstructures and properties modulated for multiple functionalities at low structural weights. The concept of density gradation in cellular solids has recently gained attention due to its potentials in opening new doors to the development of lightweight structures that offer optimal physical and mechanical properties without compromising their favorable characteristics. Herein, a comprehensive insight into the fundamental concepts, fabrication, and current and potential applications of density‐graded cellular solids in various areas of science and engineering is provided. Cellular solids are broadly classified into two main categories: foams and lattice structures. An overview of the fundamental concepts in each category is presented, followed by details on the characterization approaches and some of the most novel processing techniques utilized in fabricating the structures. The uses of density‐graded structures in load‐bearing, acoustic, and biomedical applications are highlighted. The state of the art in each category and the current trends in application‐specific optimization of density‐graded structures are discussed. The review concludes with an outlook of the future directions in this exciting field.

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Section: Density‐graded Cellular Solidsmentioning

confidence: 99%

Density‐Graded Cellular Solids: Mechanics, Fabrication, and Applications

et al. 2021

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“…A beam was fabricated using ABS material with flat brass sheets, 0.3 mm thick, implanted between the moulds, which were then compressed. Results indicated that the proposed origami structure showed plane stiffness and higher energy absorption to external loads [ 20 ]. However, the work lacked analysis in terms of geometric optimisation and behaviour under impact load.…”

Section: Introductionmentioning

confidence: 99%

Strain Release Behaviour during Crack Growth of a Polymeric Beam under Elastic Loads for Self-Healing

2022

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The response of polymeric beams made of Acrylonitrile butadiene styrene (ABS) and thermoplastic polyurethane (TPU) in the form of 3D printed beams is investigated to test their elastic and plastic responses under different bending loads. Two types of 3D printed beams were designed to test their elastic and plastic responses under different bending loads. These responses were used to develop an origami capsule-based novel self-healing mechanism that can be triggered by crack propagation due to strain release in a structure. Origami capsules of TPU in the form of a cross with four small beams, either folded or elastically deformed, were embedded in a simple ABS beam. Crack propagation in the ABS beam released the strain, and the TPU capsule unfolded with the arms of the cross in the direction of the crack path, and this increased the crack resistance of the ABS beam. This increase in the crack resistance was validated in a delamination test of a double cantilever specimen under quasi-static load conditions. Repeated test results demonstrated the effect of self-healing on structural crack growth. The results show the potential of the proposed self-healing mechanism as a novel contribution to existing practices which are primarily based on external healing agents.

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“…Existing origami metamaterials are predominantly developed from rigid-foldable origami patterns, represented by the well-known Miura-ori [15,16,35,[38][39][40][41] and its derivatives [17,34,36,42] because of the simplicity of their geometric design, yet elegant kinematic property of rigid foldability with a single degree of freedom. Folding of rigid-foldable patterns is characterized by purely rotation about the creases without deformation from the facets.…”

Section: Introductionmentioning

confidence: 99%

Theoretical characterization of a non-rigid-foldable square-twist origami for property programmability

Zang

Feng

Chen

et al. 2021

International Journal of Mechanical Sciences

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Using non-rigid-foldable origami patterns to design mechanical metamaterials could potentially offer more versatile behaviors than the rigid-foldable ones, but their applications are limited by the lack of analytical framework for predicting their behavior. Here, we propose a theoretical model to characterize a non-rigid-foldable square-twist origami pattern by its rigid origami counterpart. Based on the experimentally observed deformation mode the square-twist, a virtual crease was added in the central square to turn the non-rigid-foldable pattern to a rigid-foldable one.Two possible deformation paths of the non-rigid-foldable pattern were calculated through kinematic analysis of its rigid origami counterpart, and the associated energy and force were derived analytically. Using the theoretical model, we for the first time discovered that the non-rigid-foldable structure bifurcated to follow a low-energy deformation path, which was validated through experiments. Furthermore, the mechanical properties of the structure could be programmed by the geometrical parameters of the pattern and material stiffness of the creases and facets. This work thus paves the way for development of non-rigid-foldable origami-based metamaterials serving for mechanical, thermal, and other engineering applications.

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The behavior of a functionally graded origami structure subjected to quasi-static compression

Cited by 67 publications

References 36 publications

Density‐Graded Cellular Solids: Mechanics, Fabrication, and Applications

Density‐Graded Cellular Solids: Mechanics, Fabrication, and Applications

Strain Release Behaviour during Crack Growth of a Polymeric Beam under Elastic Loads for Self-Healing

Theoretical characterization of a non-rigid-foldable square-twist origami for property programmability

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