Damage accumulation near the cold-expanded hole due to high-cycle fatigue by crack compliance method
Fracture and Structural Integrity, 2021 The novel destructive method is implemented for quantitative assessment of fatigue damage accumulation in the stress concentration zone accompanied by residual stress due to cold expansion of the through-thickness hole. Damage accumulation is reached by
Sviatoslav Eleonsky +3 more
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MENENTUKAN KOEFISIEN EKSPANSI LINIER MATERIALKUNINGAN DENGAN TEKNIK ESPI [PDF]
, 2017 Have performed experiments to determine the coefficient of linear expansion of brass rod with a technique ESPI (Electronic Speckle Pattern Interferometry).
Astuti, Edi Tri
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A Full-Field Wideband Modal Testing Method for Turbine Blades
AerospaceIn order to accurately measure the low- and high-order modes of turbine blades, this study proposes a method that integrates piezoelectric ceramic excitation with time-averaged electronic speckle pattern interferometry (TA-ESPI).
Yinhang Ma +4 more
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Verifikace ESPI analýzy napětí pomocí MKP [PDF]
, 2013 The main goal of this paper is verification of accuracy of ESPI strain sensor Dantec dynamics Q-100. ESPI is the digital holographic interferometry method for measuring small displacements and deformations.
Halama, Radim +2 more
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Residual Stress Measurement by Electronic Speckle Pattern Interferometry [PDF]
, 2007 The existence of residual stresses affects both safety and lifetime. Thus the determination of these stresses is very important. The ESPI (Electronic Speckle Pattern Interferometry) and Hole- Drilling combined method seems to be an appropriate technique ...
Holý,S., Krempaszky, C., ŠSedivý, O.
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Use of specklegrams background terms for speckle photography combined with phase-shifting electronic speckle pattern interferometry [PDF]
, 2015 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Electronic speckle pattern interferometry (ESPI) is combined with digital speckle photography (DSP) to measure out-of-plane deformation in the presence of large in-plane translation or rotation.
Georges, Marc P. +4 more
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Les categories subjacents a la "Benedictus Deus", II. La visió de Déu [PDF]
, 1983 Electronic Speckle Pattern Interferometry (ESPI) dates from 1971. Attempts at commercial exploitation were unsuccessful; at the beginning of this decade it remained essentially a laboratory technique.
Gil i Ribas, Josep
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Objective speckle displacement: an extended theory for the small deformation of shaped objects [PDF]
, 2014 This paper describes an extended and improved theory of the displacement of the objective speckle pattern resulting from displacement and/or deformation of a coherently illuminated diffuse object. Using the theory developed by Yamaguchi [Opt.
Charrett, Thomas O. H., Tatam, Ralph P.
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Applied SciencesLaser Powder Bed Fusion (L-PBF) parts combine geometric freedom with process-induced rough surfaces that challenge residual-stress metrology. We evaluated the accuracy of the incremental hole-drilling (IHD) method with electronic speckle pattern ...
Sebastian Gersch +3 more
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Modelling and parametric study of the re-anchorage of ruptured tendons in bonded post-tensioned concrete [PDF]
, 2017 The contribution of ruptured tendons to the residual strength of bonded post-tensioned concrete structures is currently assessed based on pre-tensioned concrete bond models. However, this approach is inaccurate due to the inherent differences between pre-
A. O. Abdelatif +24 more
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