Results 71 to 80 of about 27,480 (251)

Effect of Ductile Damage Evolution in Sheet Metal Forming: Experimental and Numerical Investigations [PDF]

open access: yes, 2010
The numerical simulation based on the Finite Element Method (FEM) is widely used in academic institutes and in the industry. It is a useful tool to predict many phenomena present in the classical manufacturing forming processes such as necking, fracture,
Abbassi, Fethi   +4 more
core   +1 more source

Influence of uniaxial tensile pre-strain on forming limit curve by using biaxial tensile test

open access: yesChinese Journal of Aeronautics, 2020
Abstract This paper focused on the effect of pre-strain on forming limit curves (FLC) of 5754-O aluminum alloy sheet through utilizing biaxial tensile approach. Based on Swift model and Yld2000-2d yield criterion, the dimensions of cruciform specimen was optimized through applying finite element method for increasing the strain at specimen center ...
Wennan YUAN   +5 more
openaire   +1 more source

Advanced Separators for Liquid and Quasi‐Solid Lithium Rechargeable Batteries: Design and Development

open access: yesAdvanced Materials, EarlyView.
This review traces the evolution of lithium‐ion battery separators from passive barriers to multifunctional components central to cell safety and performance. Polymer‐ceramic hybrids, nanofiber architectures, and bio‐derived membranes deliver ionic conductivities above 3 mS cm−1, thermal stability beyond 200 °C, and effective suppression of lithium ...
Karthik Vishweswariah   +5 more
wiley   +1 more source

Experimental Study on Mechanical Behavior of Q235 Steel Square Concrete-Filled Steel Tube Members Under Biaxial Eccentric Tension

open access: yesBuildings
To investigate the mechanical behavior and load-carrying capacity calculation methods of square concrete-filled steel tube (SCFST) members under biaxial eccentric tension, an experimental program was designed and conducted involving three square hollow ...
Hualong Mu, Yu Deng, Yihui Ying
doaj   +1 more source

Correction factors for in-plane shear strength and stiffness testing of flat angle-ply composite laminates with high Poisson’s ratios

open access: yesPolymers and Polymer Composites, 2022
In this paper, a method to obtain correction factors for in-plane shear properties in fibre-reinforced polymers with high Poisson’s ratio under biaxial load conditions and at high loads is presented.
Stefan Sieberer, Martin Schagerl
doaj   +1 more source

Simulation of hydro-formability testing for tubes [PDF]

open access: yes, 2004
With the development of dedicated tubular products for hydroforming, the need for a representative\ud test for these products evolves. Currently free expansion tests are used, but these tests only follow a more\ud or less plane strain deformation.
Boogaard, A.H. van den, Kelder, M.H.
core   +1 more source

Biaxial tensile testing of cruciform slim superalloy at elevated temperatures

open access: yesMaterials & Design, 2016
Abstract The stress–strain curves and yield loci of metallic materials under biaxial tensile tests can be precisely predicted using a yield criterion. In this study, biaxial tensile testing equipment with high-accuracy displacement, temperature control, and digital speckle correlation method of non-contact optical strain measurement is developed to ...
Rui Xiao   +4 more
openaire   +1 more source

Magnetic Textiles: A Review of Materials, Fabrication, Properties, and Applications

open access: yesAdvanced Materials Technologies, EarlyView.
Magnetic textiles (M‐textiles) are emerging as a programmable materials platform that merges magnetic matter with hierarchical textile structures. This article consolidates magnetic material classes, textile architectures, and fabrication and magnetization strategies, revealing structure–property–function relationships that govern magneto‐mechanical ...
Li Ke   +3 more
wiley   +1 more source

Wrinkle‐Adaptive Kirigami Wearables With Anisotropic Deformability for Sleep EEG Monitoring

open access: yesAdvanced Science, EarlyView.
This article introduces a wrinkle‐adaptive, kirigami‐structured wearable EEG patch that personalizes electrode‐skin conformity to stabilize the interface and enable wireless, high‐quality sleep monitoring. ABSTRACT Wearable electroencephalography (EEG) devices offer a promising solution for continuous brain monitoring outside laboratory settings ...
Jungmin Kim   +5 more
wiley   +1 more source

Semiconductor strain sensor for measuring biaxial strain field

open access: yesNihon Kikai Gakkai ronbunshu, 2019
We developed a semiconductor strain sensor chip for measuring the biaxial strain with high sensitivity and low power consumption. This sensor chip has two bridge circuits (sensors) that consist of an impurity diffusion layer on a silicon substrate, and ...
Hiromi SHIMAZU   +2 more
doaj   +1 more source

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