Results 11 to 20 of about 10,466 (212)

Auxetic metamaterials subjected to dynamic loadings [PDF]

Theoretical and Applied Mechanics, 2022
Materials with negative Poisson’s ratio are called auxetics and they present enhanced properties (e.g. damping, indentation resistance, fracture toughness and impact resistance) under external loadings.
Tairidis Georgios K., Ntintakis Ioannis, Drosopoulos Georgios A., Koutsianitis Panagiotis, Stavroulakis Georgios E.   +4 more
doaj   +1 more source

Compressive mechanical properties of ex-situ auxetic composite-filled tubes

Journal of Materials Research and Technology, 2021
Auxetic materials are a class of materials that expand transversely when stretched longitudinally. Recently, auxetic materials are gaining special interest in wide range of applications mainly due to their attractive mechanical behavior.
Yingying Xue, Jianhui Mu, Yingjie Huang, Li Zhou, Zimu Shi   +4 more
doaj   +1 more source

Investigation of the Auxetic of a novel geometric structure and improvement of Poisson’s ratio at different inner thicknesses

Gazi Üniversitesi Fen Bilimleri Dergisi, 2023
Poisson’s ratio, one of the important mechanical properties of materials and structures, is positive for almost all of the known materials and structures. However, auxetic materials or structures has negative Poisson’s ratios.
İsmail ERDOĞAN, İhsan TOKTAS
doaj   +1 more source

Progress of auxetic and semi-auxetic materials

Engineering review, 2023
Auxetic materials with negative Poisson's ratios, display the unique behavior owing to their micro-structure or geometrical build. Auxetic materials resist deformities when subjected to uniaxial, biaxial, and shearing stresses. Cellular based materials are known for their excellent impact and shock energy absorption.
Pai, Anand, Singh, Aikum, Rizwan, Ammaar, Goswami, Sravojit, Kini, Chandrakant R.   +4 more
openaire   +3 more sources

Optimizing the Auxetic Geometry Parameters in Few Yarns Based Auxetic Woven Fabrics for Enhanced Mechanical Properties Using Grey Relational Analysis

Journal of Natural Fibers, 2022
2D woven auxetic fabrics (AF) developed by weave design modification provide a continuous, commercial, and low-cost manufacturing process for high strength and stable auxetic structures.
Muhammad Zeeshan, Mumtaz Ali, Rabia Riaz, Aima Sameen Anjum, Yasir Nawab, Muhammad Bilal Qadir, Sheraz Ahmad   +6 more
doaj   +1 more source

A novel cement-based auxetic foam composite: Experimental study

Case Studies in Construction Materials, 2022
Auxetic foam materials contract (expand) laterally under uniaxial compressive (tensile) load. Due to superior characteristics of auxetic foam, e.g., shear resistance and in-plane indentation resistance, studies of auxetic foam composites have been ...
Ge Zhi Fan, Xin Ren, Shi Long Wang, Chen Luo, Yi Min Xie   +4 more
doaj   +1 more source

Hierarchical Auxetic Mechanical Metamaterials [PDF]

Scientific Reports, 2015
AbstractAuxetic mechanical metamaterials are engineered systems that exhibit the unusual macroscopic property of a negative Poisson's ratio due to sub-unit structure rather than chemical composition. Although their unique behaviour makes them superior to conventional materials in many practical applications, they are limited in availability.
Gatt R., Mizzi L., Azzopardi J. I., Azzopardi K. M., Attard D., Casha A., Briffa J., Grima J. N.   +7 more
openaire   +4 more sources

A novel auxetic structure based bone screw design: Tensile mechanical characterization and pullout fixation strength evaluation

Materials & Design, 2020
It was supposed that auxetic structure with negative Poisson's ratio (NPR) expands under stretch and could enhance the screw-bone fixation. In this study, the novel auxetic structure based bone screws were designed, and mechanical properties and fixation
Yan Yao, Lizhen Wang, Jian Li, Shan Tian, Ming Zhang, Yubo Fan   +5 more
doaj   +1 more source

Non-Auxetic Mechanical Metamaterials [PDF]

Materials, 2019
The concept of “mechanical metamaterials” has become increasingly popular, since their macro-scale characteristics can be designed to exhibit unusual combinations of mechanical properties on the micro-scale. The advances in additive manufacturing (AM, three-dimensional printing) techniques have boosted the fabrication of these mechanical metamaterials ...
de Jonge, Christa P. (author), Kolken, H.M.A. (author), Zadpoor, A.A. (author)   +2 more
openaire   +4 more sources

Machine learning accelerated design of auxetic structures

Materials & Design, 2023
Auxetic metamaterials exhibit unusual expansion perpendicular to the direction of tensile loading, a behavior known as negative Poisson's ratio (NPR). The microstructures of auxetic metamaterials require rational design.
Menghuan Wang, Sheng Sun, Tong-Yi Zhang
doaj   +1 more source