Results 1 to 10 of about 207,946 (243)

Accurate Lens-Distortion Measurement Through Detector Nyquist Sampling [PDF]

open access: yesSensors
Distortion is a key parameter affecting the imaging performance of lenses. In this study, we propose a testing method based on detector Nyquist sampling of image data to achieve high-precision measurements of the distortion distribution of lenses.
Yongqiang Yang   +7 more
doaj   +2 more sources

Analytical model of the in-plane torsion test [PDF]

open access: yesActa Mechanica, 2022
AbstractIn research and industry, the in-plane torsion test is applied to investigate the material behaviour at large plastic strains: a sheet is clamped in two concentric circles, the boundaries are twisted against each other applying a torque, and simple shear of the material arises.
Nils Cwiekala   +4 more
openaire   +2 more sources

Non-Destructive Evaluation of In-Plane Waviness in Carbon Fiber Laminates Using Eddy Current Testing

open access: yesApplied Sciences, 2023
Non-destructive detection of the in-plane waviness of carbon fiber-reinforced plastic (CFRP) laminates is of interest in a wide variety of industries, as wrinkles and other fiber alignment defects significantly impact the mechanical performance of the ...
Matthew Newton   +3 more
doaj   +1 more source

Extending the annular in-plane torsional shear test specimen to applications at high strain rates [PDF]

open access: yesEPJ Web of Conferences, 2021
In-plane torsional shear testing is a well-established material testing technique in the metal forming community. The corresponding specimen is designed to be machined from sheet metal with a continuous annular shear zone intended to deform in simple ...
Osman Muhsin   +2 more
doaj   +1 more source

Structural testing of concrete walls on-edge with combined axial and out-of-plane loading

open access: yesMethodsX, 2023
Full-scale testing of structural components can be time consuming and difficult. The design of full-scale slender concrete walls is highly influenced and controlled by second-order and out-of-plane bending loads. Previous experiments on out-plane bending
Salam Al-Rubaye, Marc Maguire
doaj   +1 more source

Recent advances in the in-plane shear testing of Mg alloy sheets

open access: yesJournal of Magnesium and Alloys, 2023
Sheet-metal products are integral parts of engineering industries and academia research. Various testing techniques have revealed the deformation behaviors of sheet metals under complex stress states.
Mahesh Panchal   +5 more
doaj   +1 more source

Design optimization of cruciform specimens for biaxial fatigue loading [PDF]

open access: yesFracture and Structural Integrity, 2014
In order to correctly assess the biaxial fatigue material properties one must experimentally test different load conditions and stress levels. With the rise of new in-plane biaxial fatigue testing machines, using smaller and more efficient electrical ...
R. Baptista   +5 more
doaj   +1 more source

Development and Experimental Verification of a High-Temperature and In-Plane Biaxial Testing Apparatus

open access: yesMachines, 2022
Given the lack of primary data on heat-resistant composites under high-temperature conditions, the focus of this paper is the development of an in-plane biaxial apparatus under high temperatures and complex loads.
Junxian Chen   +2 more
doaj   +1 more source

High-Strain-Rate Compressive Behavior of UHMWPE Fiber Laminate

open access: yesApplied Sciences, 2020
Ultra-high-molecular-weight polyethylene (UHMWPE) fiber laminate is currently widely used in ballistic protection for its exceptional physical and mechanical properties.
Yihui Zhu   +5 more
doaj   +1 more source

Multiaxial high-cycle fatigue modelling for random loading [PDF]

open access: yesMATEC Web of Conferences, 2019
In this paper, a multiaxial fatigue life prediction model is proposed under general multiaxial random loadings. First, a brief review for existing multiaxial fatigue models is given and special focus is on the LiuMahadevan critical plane concept, which ...
Wei Haoyang   +6 more
doaj   +1 more source

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