Results 1 to 10 of about 7,064 (232)

4D Printing of NiTi Auxetic Structure with Improved Ballistic Performance [PDF]

Micromachines, 2020
Auxetic structures have attracted attention in energy absorption applications owing to their improved shear modulus and enhanced resistance to indentation.
Hany Hassanin, Alessandro Abena, Mahmoud Ahmed Elsayed, Khamis Essa   +3 more
doaj   +2 more sources

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   +3 more sources

Biomechanical exploration of cushioning and stability in auxetic lattice midsoles during jump landing [PDF]

Scientific Reports
High-impact forces during jump landing pose a risk for lower limb injuries, highlighting the importance of shoe midsole cushioning, where the effectiveness of midsole hardness remains controversial.
Jifa Zhang, Runhua Huang, Yibing Chen, Yangbo He, Qi Wu, Yadie Yang   +5 more
doaj   +2 more sources

Cyclic temperature-dependent response of unit cell auxetic structures in an additively manufactured shape memory alloy

Materials & Design
This study investigates the mechanical response of additively manufactured NiTi sinusoidal hexagonal re-entrant auxetic structures, focusing on the combined influence of temperature and local geometry. The NiTi alloy fabricated by laser powder bed fusion
Emanuele Avoledo, Xiebin Wang, Jiawen Xu, Federico Scalzo, Enrico Salvati   +4 more
doaj   +2 more sources

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

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 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

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

A finite element analysis of auxetic composite fabric with rotating square structure

Journal of Industrial Textiles, 2023
The auxetic property of macro-porous rotating square structure has been investigated by many using either experimental or numerical approaches. Given the low breaking strength of the typical rotating square structure, it was proposed to employ an elastic
Yuping Chang, Yanping Liu, Hong Hu
doaj   +1 more source