Results 21 to 30 of about 96,443 (168)
A biaxial test for rheological and formability identification
EPJ 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
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Bayesian optimization of laser-aided fracture toughness specimen preparation
Open CeramicsReliable 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
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Investigation of the positioning accuracy of the Cat’s Eye as a reference position in asphere-measuring interferometry [PDF]
EPJ Web of ConferencesFast and accurate asphere and freeform measurements are in high demand by the optics manufacturing industry. Interferometric methods such as tilted-wave interferometry meet these demands but require accurate surface positioning of the specimen along the ...
Scholz Gregor +2 more
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Characterization of transverse anisotropy in Poisson's ratio using three-point radial deformation measurements [PDF]
E3S Web of Conferences, 2019 Poisson's ratio (v) of rock specimens can be experimentally determined from radial deformation measurements in an unconfined compression test. This is commonly achieved by mounting a compressometer with diametric or perimetric measurement capability ...
Toker Nabi Kartal +1 more
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Design and manufacturing optimization of epoxy-based adhesive specimens for multiaxial tests
Materials & Design, 2021 Specimen design and manufacturing quality are decisive factors in the experimental determination of material properties, because they can only be reliably determined if all undesired influences have been minimized or are precisely known.
Michael Wentingmann +3 more
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Journal of Aeronautical Materials, 2017 To study the crushing energy-absorbing characteristics and failure mode, the multi-shells finite element model of composite thin-walled C-channel specimen was established based on the quasi-static crushing test results.
XIE Jiang +4 more
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Selection of a suitable multiresponse optimization technique for turning operation [PDF]
Decision Science Letters, 2016 The present work deals with the comparison of four multi response optimization methods, viz. multiple response signal-to-noise (MRSN) ratio, weighted signal-to-noise (WSN) ratio, Grey relational analysis (GRA), and VIKOR (VlseKriterijumska Optimizacija I
I. Nayak, J. Rana
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Effect of Laser Heat Treatment on the Microstructure and Properties of Alloy 800H
Metals, 2019 The effects of laser heat treatment on the microstructure and properties of alloy 800H were investigated. The fracture morphology, elemental changes, and phase composition of the specimens were characterized by scanning electron microscopy (SEM), energy ...
Wei Zhang +3 more
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Effect of stress path, size and shape on the optimum parameters of a brittle-ductile concrete model
Engineering Structures and Technologies, 2017 The main purpose of this study is to investigate the effects of the stress path, size and shape of the specimen, on the optimum values of the plastic input parameters of Concrete Damaged Plasticity-CDP- model of the ABAQUS software.
Mojtaba Labibzadeh, Reza Hamidi
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Graphene in cryo-EM specimen optimization
Current Opinion in Structural BiologySpecimen preparation is a critical but challenging step in high-resolution cryogenic electron microscopy (cryo-EM) structural analysis of macromolecules. In the past decade, graphene has gained much recognition as the supporting substrate to optimize cryo-EM specimen preparation.
Nan Liu, Hong-Wei Wang
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