Results 51 to 60 of about 7,360 (301)

Evaluation of ductile failure models in Sheet Metal Forming

MATEC Web of Conferences, 2016
Traditionally, combination of equivalent plastic strain and stress triaxiality parameters are taken into account when performing characterization of material ductility.
Amaral Rui, Teixeira Pedro, Azinpour Erfan, Santos Abel D., Cesar de Sa J.   +4 more
doaj   +1 more source

Size effect on the shear damage under low stress triaxiality in micro-scaled plastic deformation of metallic materials

Materials & Design, 2020
Micro-forming is one of the major micro-manufacturing methods with promising application potentials, in which the damage response and fracture behavior need to be insightfully addressed.
Jilai Wang, Chuanzheng Li, Yi Wan, Chengpeng Zhang, Jiaqi Ran, M.W. Fu   +5 more
doaj   +1 more source

Triply‐Twinned Metamaterials: Unraveling the Mechanics and Failure Pathways Through High‐Resolution XCT

Advanced Materials, EarlyView.
Triply‐twinned architected lattices transform deformation from bending to stretching of struts, delivering up to threefold increases in stiffness and strength across polymeric and metallic systems. High‐resolution synchrotron XCT and image‐based simulations reveal how meta‐grain architecture, defects, and AM build orientation govern failure pathways ...
David McArthur, George Maddison, Jaianth Vijayakumar, Paul Tafforeau, Kathy Christofidou, Peter David Lee, PJ Tan, Chu Lun Alex Leung   +7 more
wiley   +1 more source

Influences of stress triaxiality and forming parameters on microstructural evolution and fracture mechanisms in a Ni–Cr–Mo-based superalloy

Journal of Materials Research and Technology
Hot tensile features in a Ni–Cr–Mo-based superalloy with different notched types are explored. Changes of microstructure and fracture mechanisms with stress triaxiality and tensile parameters are elucidated. Results manifest that the maximum load for the
Daoguang He, Xiaoyang Chen, Y.C. Lin, Xintao Yan, Han Xie   +4 more
doaj   +1 more source

Fracture mechanism and failure strain of TA31 titanium alloy for deep-sea pressure hulls based on continuum damage mechanics

Frontiers in Materials, 2023
Titanium alloys has high fatigue resistance, high corrosion resistance, high temperature resistance, and other excellent properties, and have been widely used in deep-sea equipment and aviation industries.
Bowen Zhang, Zhengquan Wan
doaj   +1 more source

Self‐Powered Flexible Triboelectric‐Gated Ion‐Gel Transistor for Neuromorphic Tactile Sensing and Human Activity Recognition

Advanced Materials, EarlyView.
A fully flexible ion‐gel‐gated graphene‐channel transistor driven by a triboelectric nanogenerator enables self‐powered tactile sensing and synaptic learning. Mimicking spike‐rate‐dependent plasticity, the device exhibits frequency‐selective potentiation and depression, supporting rate‐coded neuromorphic computation even under flex.
Hanseong Cho, Seoyeon Park, Youngmin Lee, Sejoon Lee   +3 more
wiley   +1 more source

Tube Expansion by Single Point Incremental Forming: An Experimental and Numerical Investigation

Metals, 2021
In this paper, we revisit the formability of tube expansion by single point incremental forming to account for the material strain hardening and the non-proportional loading paths that were not taken into consideration in a previously published ...
Carlos Suntaxi, Gabriel Centeno, M. Beatriz Silva, Carpóforo Vallellano, Paulo A. F. Martins   +4 more
doaj   +1 more source

Computational modelling of void growth in swelled hydrogels [PDF]

, 2017
The nature and the large notable distinguishing features of polymeric gels explain their pervasive use as biomaterials in both regenerative medicine and tissue engineering.
Elkolli, M., Gangloff, S.C., Siad, L.
core  

Deformation and Failure of OFHC Copper under high strain rate shear compression [PDF]

, 2017
Hat-shaped specimen geometries were developed to generate high strain, high-strain-rates deformation under prescribed conditions. These geometries offer also the possibility to investigate the occurrence of ductile rupture under low or negative stress ...
Bonora, Nicola, Hörnqvist, Magnus, Iannitti, Gianluca, Peresechino, Italo, Ruggiero, Andrew, Testa, Gabriel   +5 more
core   +1 more source

Recent Advances in Electrospun Nanofibers for Triboelectric Nanogenerators: Performance Enhancement Strategies and Emerging Applications

Advanced Materials, EarlyView.
This review highlights recent advances in electrospun nanofiber‐based triboelectric nanogenerators, emphasizing how material design, fiber architecture, and interface engineering collectively enhance output performance and mechanical durability. Key developments in porous, aligned, core‐shell, and hierarchical nanofibers are discussed alongside ...
MD Fajla Rabbi, Jee Hwan Ahn, Duy Linh Vu, Kyoung Kwan Ahn   +3 more
wiley   +1 more source