Results 21 to 30 of about 198,283 (303)

Effect of the matrix behavior on the damage of ethylene–propylene glass fiber reinforced composite subjected to high strain rate tension [PDF]

open access: yes, 2012
This study investigates the origin of the strain rate effect on the mechanical behavior of a discontinuous glass fiber reinforced ethylene–propylene copolymer (EPC) matrix composite.
BOCQUET, Michel   +2 more
core   +6 more sources

Identification of material properties of composite materials

open access: yesAviation, 2009
Present paper describes the facilities of composite material properties identification technique using specimen vibration tests, genetic algorithms, finite elements analysis and specimen shape optimization. In identification process the elastic constants
Paulius Ragauskas, Rimantas Belevičius
doaj   +1 more source

Multi Objective Optimization of Permanent Magnet Synchronous Motor Based on Taguchi Method and PSO Algorithm

open access: yesEnergies, 2022
To solve the optimization issues of interior permanent magnet synchronous motors (IPMSMs) and ensure a large output torque while minimizing torque ripple and core loss, the multi-objective optimization strategy should be employed.
Yinquan Yu   +6 more
doaj   +1 more source

Non-Gaussian Analysis of Herbarium Specimen Damage to Optimize Specimen Collection Management

open access: yesKnowledge Engineering and Data Science, 2022
Damage to specimen collections occurs in practically every herbarium across the world. Hence, some precautions must be taken, such as investigating the factors that cause specimen damage in their collections and evaluating their herbarium collection handling and usage policy.
Aris Yaman   +8 more
openaire   +2 more sources

Sound Damage Detection of Bridge Expansion Joints Using a Support Vector Data Description

open access: yesSensors, 2023
A novel method is proposed for the damage identification of modal bridge expansion joints (MBEJs) based on sound signals. Two modal bridge expansion joint specimens were fabricated to simulate healthy and damaged states.
Junshi Li, Caiqian Yang, Jun Chen
doaj   +1 more source

A biaxial test for rheological and formability identification

open access: yesEPJ Web of Conferences, 2010
Accurate constitutive laws and formability limits of materials are essential for a numerical optimization of sheet forming processes. The main objective of this work is to develop a new experimental device able to give for a unique specimen a good ...
Ragneau E.   +3 more
doaj   +1 more source

Linear-scaling algorithm for rapid computation of inelastic transitions in the presence of multiple electron scattering [PDF]

open access: yes, 2019
Strong multiple scattering of the probe in scanning transmission electron microscopy (STEM) means image simulations are usually required for quantitative interpretation and analysis of elemental maps produced by electron energy-loss spectroscopy (EELS ...
Brown, HG, Ciston, J, Ophus, C
core   +2 more sources

Parameter identification of a mechanical ductile damage using Artificial Neural Networks in sheet metal forming. [PDF]

open access: yes, 2013
In this paper, we report on the developed and used of finite element methods, have been developed and used for sheet forming simulations since the 1970s, and have immensely contributed to ensure the success of concurrent design in the manufacturing ...
Abbassi, Fethi   +3 more
core   +2 more sources

Bias extension test for pantographic sheets: numerical simulations based on second gradient shear energies [PDF]

open access: yes, 2016
We consider a bi-dimensional sheet consisting of two orthogonal families of inextensible fibres. Using the representation due to Rivlin and Pipkin for admissible placements, i.e.
Cuomo, Massimo   +3 more
core   +3 more sources

Bayesian optimization of laser-aided fracture toughness specimen preparation

open access: yesOpen Ceramics
Reliable lifetime prediction of ceramic components requires fracture toughness measurements supported by sharp, reproducible artificial defects. Conventional notching techniques often lack consistency, are time-consuming, and are particularly limited for
Tim Opatz   +4 more
doaj   +1 more source

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