Titlebook: Experimental Stress Analysis for Materials and Structures; Stress Analysis Mode Alessandro Freddi,Giorgio Olmi,Luca Cristofolini Book 2015

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Introduction to Inverse Problemslementary methodology to the theoretical one. The great development of numerical methods has largely overruled this task. In addition, the increased accuracy of numerical tools has confined the forward approach to the role of experimental verification restricted to cases of complex and non-conventio

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Introduction to the Application of Strain Gagessized in specialized books. Some sections of the chapter deal with the limits of the maximum and minimum values of the measurable strain, the choice of the resistance of the commercial gages series, the linearity and the drawbacks of the basic measuring circuits and some properties of a piezo-resist

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Introduction to Photoelasticity to cases of loaded structures without theoretical models. Today photoelasticity has been largely replaced by numerical methods, such as finite elements, which provide solutions for any structural problem with great detail and accuracy, and is therefore confined to the role of an illustration tool.

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Introduction to Holographic Interferometryysis problems. Today this method, at least in its classical form, suffers from the way in which the interference fringes are recorded. Special photographic plates with high resolution are needed to record these images, together with accurate manipulation. This constraint has limited the industrial a

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Overview of Digital Image Correlational image correlation (DIC) techniques. Both its two-dimensional and three-dimensional versions are presented. A simplified overview of the algorithms underlying such a method is provided. As DIC can lead to subtle errors, which may go unobserved, the focus of this section is on the several possible

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Static Stress Modelsl of refinement and accuracy to cover practically every kind of structural mechanics requirements. The field of Statics was the first to take advantage of numerical methods. Nevertheless, experiments continue to be fundamental for building simulation models. A few case studies with classic applicati

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Local Strain Models for Variable Loadsaterial yield strength, even if only locally. This circumstance is not taken into account by the classic theory of fatigue at a high number of cycles that assumes elastic states of stress at any point of a loaded body and a limited micro-plasticity at critical points. In the field of high load cycle

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