Results 11 to 20 of about 75 (64)
A higher order thermoelastic analysis of fatigue crack growth can assess crack tip shielding
Fatigue &Fracture of Engineering Materials &Structures, Volume 46, Issue 4, Page 1596-1612, April 2023., 2023 Abstract The present work uses a more accurate thermoelastic formulation than the classical equation, based on the inclusion of a higher order term, to analyze crack tip thermoelastic data. It is shown that this thermoelastic analysis (TSA) model can be fitted to the Christopher–James–Patterson crack tip field model and hence provides information on ...
Alonso Camacho‐Reyes +3 more
wiley +1 more source
A review of using thermoelasticity for structural integrity assessment [PDF]
Fracture and Structural Integrity, 2014 The advances in the use of thermoelastic stress analysis (TSA) for fracture mechanics assessment are reviewed. The development of techniques to determine stress intensity factor is presented followed by the application of these techniques to fatigue ...
L. Marsavina , R.A. Tomlinson
doaj +1 more source
Fatigue &Fracture of Engineering Materials &Structures, Volume 45, Issue 5, Page 1521-1536, May 2022., 2022 Abstract This paper describes a novel differential geometry method that is used in combination with 3D digital image correlation (3D‐DIC) for crack tip field characterization on non‐planar (curved) surfaces. The proposed approach allows any of the two‐dimensional crack tip field models currently available in the literature to be extended to the ...
Alonso Camacho‐Reyes +3 more
wiley +1 more source
Temperature Patterns in TSA for Different Frequencies and Material Properties: A FEM Approach
Mathematical and Computational Applications, 2023 Thermography techniques are gaining popularity in structural integrity monitoring and analysis of mechanical systems’ behavior because they are contactless, non-intrusive, rapidly deployable, applicable to structures under harsh environments, and can be ...
Guilherme Duarte +2 more
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Detection and Characterization of Short Fatigue Cracks by Conduction Thermography
Engineering Proceedings, 2023 Stimulated thermography is a very common non-destructive testing (NDT) technique used for a wide range of applications and materials. An external excitation source is required to stimulate the component and detect defects.
Ester D’Accardi +3 more
doaj +1 more source
Low Cost Lock in Thermoelastic Stress Analysis (TSA)
, 2020 In this work, we introduce a low-cost Thermoelastic Stress Analysis (TSA) system for structural health monitoring. We show that the system is capable of generating TSA signal magnitude maps using a lock in reference signal provided by either RSG (resistance strain gauges) or FBG (Fibre Bragg Grating) point measurements.
Lambert Peter +3 more
openaire +2 more sources
Detecting and Monitoring Cracks in Aerospace Materials Using Post-Processing of TSA and AE Data
Metals, 2019 Thermoelastic stress analysis (TSA) is a non-contact technique for measuring the distribution of stress in the surface of a component subject to cyclic loading by using a sensitive infrared camera.
Ceri A. Middleton +4 more
doaj +1 more source
EPJ Web of Conferences, 2010 Thermoelastic stress analysis (TSA) has been applied to measure the first stress invariant on a composite helicopter component under load. The component comprised inner mono-directional glass fiber layers with an outer central plate in glass fiber ...
Costa A., Salerno A.
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Advances in Materials Science and Engineering, Volume 2017, Issue 1, 2017., 2017 Residual stress has significant influence on the performance of mechanical components, and the nondestructive estimation of residual stress is always a difficult problem. This study applies the relative nonlinear coefficient of critical refraction longitudinal (LCR) wave to nondestructively characterize the stress state of materials; the feasibility of
Yu-Hua Zhang +6 more
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Monitoring Composites under Bending Tests with Infrared Thermography
Advances in Optical Technologies, Volume 2012, Issue 1, 2012., 2012 The attention of the present paper is focused on the use of an infrared imaging device to monitor the thermal response of composite materials under cyclic bending. Three types of composites are considered including an epoxy matrix reinforced with either carbon fibres (CFRP) or glass fibres (GFRP) and a hybrid composite involving glass fibres and ...
Carosena Meola +4 more
wiley +1 more source