Estimation of measurement errors in orthotropic elastic moduli determined from natural frequencies
Sign Up to like & getrecommendations! Published in 2017 at "Structural and Multidisciplinary Optimization"
DOI: 10.1007/s00158-016-1552-9
Abstract: Orthotropic elastic moduli of composite structures can be identified by nonlinear least squares fit between measured and computed natural frequencies. However, due to measurement errors contained in the measured natural frequencies and mode shapes, the… read more here.
Keywords: test specimen; measurement errors; orthotropic elastic; elastic moduli ... See more keywords
A constraint correction method based on use of a single test specimen
Sign Up to like & getrecommendations! Published in 2021 at "Engineering Fracture Mechanics"
DOI: 10.1016/j.engfracmech.2021.107609
Abstract: Abstract Commonly, fracture toughness tests on deeply cracked specimens are used to assess defects in large-scale components. The paper presents a method for selection of test specimen type, size and crack length in order to… read more here.
Keywords: method based; based use; test; test specimen ... See more keywords
On the Development of a Heterogeneous Mechanical Test Specimen Using Topology Optimization
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DOI: 10.1016/j.promfg.2020.04.256
Abstract: Abstract Topology optimization is nowadays used in several fields, namely in Engineering and Design, and is gradually finding its way into widespread use and commercial applications. This numerical procedure is used to search for the… read more here.
Keywords: test specimen; topology; topology optimization; optimization ... See more keywords
Towards using convolutional neural network to locate, identify and size defects in phased array ultrasonic testing.
Sign Up to like & getrecommendations! Published in 2021 at "Ultrasonics"
DOI: 10.1016/j.ultras.2021.106436
Abstract: Machine learning algorithms are widely used in image recognition. In Phased Array Ultrasonic Testing (PAUT), images are typically formed through constructive and destructive superpositions of signals backscattered from flaws or geometric features. However, all PAUT… read more here.
Keywords: test specimen; array; ultrasonic testing; phased array ... See more keywords
Influence of Test Specimen Geometry on Probability of Failure of Composites Based on Weibull Weakest Link Theory
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DOI: 10.3390/ma15113911
Abstract: This paper presents an analytical model that quantifies the stress ratio between two test specimens for the same probability of failure based on the Weibull weakest link theory. The model takes into account the test… read more here.
Keywords: specimen geometry; test specimen; probability failure; geometry ... See more keywords