Results 101 to 110 of about 3,013 (212)
Small StructuresAuxetic metamaterials, renowned for their counterintuitive lateral expansion under tension and contraction under compression, present significant potential across diverse applications such as impact mitigation and fracture‐resistant systems.
Changliang Zhu +6 more
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Anticlastic Curvature and Material Freedom
physica status solidi (b), EarlyView.Anticlastic curvature occurs in bent bars for positive Poisson's ratio; synclastic curvature occurs for negative Poisson's ratio provided the material is homogeneous and elastic. Some planar negative Poisson's ratio materials exhibit anticlastic saddle curvature rather than convex curvature in bending due to effects of 3D structure.
Roderic Lakes
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Applied SciencesOrthoses are external devices designed to provide structural and functional support for disorders affecting the musculoskeletal or nervous systems. While these devices have a long history, recent technological advancements offer significant opportunities
Riccardo Carlo Moroni +1 more
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Negative Stiffness Induced and Controlled by Constriction
physica status solidi (b), EarlyView.Structures with negative stiffness can be stabilized by constriction of external displacement. Furthermore, constriction can make a conventional positive stiffness material exhibit negative stiffness, either bidirectional or unidirectional (shown in the figure).
Elena Pasternak, Arcady V. Dyskin
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Auxetic Biomedical Metamaterials for Orthopedic Surgery Applications: A Comprehensive Review
Orthopaedic SurgeryPoisson's ratio in auxetic materials shifts from typically positive to negative, causing lateral expansion during axial tension. This scale‐independent characteristic, originating from tailored architectures, exhibits specific physical properties ...
Minghao Sun +4 more
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Amplitude-tuned quasi-isotropy and programmable energy absorption in a 3D auxetic metamaterial [PDF]
AIP AdvancesThe practical application of auxetic metamaterials is often hampered by inherent anisotropy, a critical limitation that degrades performance under multidirectional loading.
Dingchuan Wang +4 more
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Design of mechanical metamaterials using a level-set based topology optimization method [PDF]
, 2014 Metamaterials are a family of artificially engineered materials consisting of an array of periodically arranged microstructures, offering unusual material properties that may not be easily found in nature.
Luo, Z, Wang, Yiqiang, Zhang, Nong
core
Small, EarlyView.This study presents a computational framework treating crystalline HOFs as adaptive atomic‐scale interfaces. Catenated HOFs preserve lattice stability under load while enabling auxetic deformation and reversible nonlinearity. The results provide direct evidence that supramolecular interactions govern macroscopic resilience and structural adaptability ...
Byeonghwa Goh, Joonmyung Choi
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Advanced Functional Materials, Volume 36, Issue 27, 2 April 2026.This study examines how pore shape and manufacturing‐induced deviations affect the mechanical properties of 3D‐printed lattice materials with constant porosity. Combining µ‐CT analysis, FEM, and compression testing, the authors show that structural imperfections reduce stiffness and strength, while bulk material inhomogeneities probably enhance ...
Oliver Walker +5 more
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Shock and Vibration, 2019 Auxetic mechanical metamaterials that exhibit a negative Poisson’s ratio (NPR) can be artificially designed to exhibit a unique range of physical and mechanical properties.
Qing Li, Deqing Yang
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