scholarly journals Special Issue on Fatigue and Fracture of Non-Metallic Materials and Structures

2020 ◽  
Vol 10 (5) ◽  
pp. 1841
Author(s):  
Andrea Spagnoli
Keyword(s):  
Structural Integrity ◽  
Glass Ceramics ◽  
Cementitious Composites ◽  
Metallic Materials ◽  
Multifunctional Materials ◽  
Structural Elements ◽  
Special Issue ◽  
Bituminous Mixtures ◽  
Fatigue And Fracture ◽  
Soft Matters

This Special Issue covers the broad topic of structural integrity of non-metallic materials, and it is concerned with the modelling, assessment and reliability of structural elements of any scale. In particular, the articles being contained in this issue concentrate on the mechanics of fracture and fatigue in relation to applications to a variety of non-metallic materials, including concrete and cementitious composites, rocks, glass, ceramics, bituminous mixtures, composites, polymers, rubber and soft matters, bones and biological materials, advanced and multifunctional materials.

scholarly journals Special Issue: Probabilistic Mechanical Fatigue and Fracture of Materials

Materials ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 4901
Author(s):  
Miguel Muñiz-Calvente ◽  
Alfonso Fernández-Canteli
Keyword(s):  
Material Characterization ◽  
Structural Integrity ◽  
State Of The Art ◽  
Numerical Models ◽  
Special Issue ◽  
Damage Models ◽  
Mechanical Fatigue ◽  
Future State ◽  
Fatigue And Fracture ◽  
Fracture Of Materials

When designing structural and mechanical components, general structural integrity criteria must be met in order to ensure a valid performance according to its designed function, that is, supporting loads or resisting any kind of action causing stress and strains to the material without catastrophic failure. For these reasons, the development of solutions to manage the test conditions, failure mechanism, damage evolution, component functionalities and loading types should be implemented. The aim of this Special Issue “Probabilistic Mechanical Fatigue and Fracture of Materials” is to contribute to updating current and future state-of-the-art methodologies that promote an objective material characterization and the development of advanced damage models that ensure a feasible transferability from the experimental results to the design of real components. This is imbricated in some probabilistic background related to theoretical and applied fracture and fatigue theories, and advanced numerical models applied to some real application examples.

scholarly journals Special Issue on Fracture and Fatigue Assessments of Structural Components

2020 ◽  
Vol 10 (18) ◽  
pp. 6327
Author(s):  
Alberto Campagnolo
Keyword(s):  
Fatigue Life ◽  
Structural Integrity ◽  
Fatigue Loading ◽  
Complex Geometries ◽  
Loading Conditions ◽  
Structural Elements ◽  
Structural Components ◽  
Special Issue ◽  
Linear Elastic ◽  
Life Predictions

This Special Issue covers the broad topic of structural integrity of components subjected to either static or fatigue loading conditions, and it is concerned with the modelling, assessment and reliability of components of any scale. Dealing with fracture and fatigue assessments of structural elements, different approaches are available in the literature. They are usually divided into three subgroups: stress-based, strain-based and energy-based criteria. Typical applications include materials exhibiting either linear-elastic or elasto-plastic behaviours, and plain and notched or cracked components subjected to static or cyclic loading conditions. In particular, the articles contained in this issue concentrate on the mechanics of fracture and fatigue in relation to structural elements from nano- to full-scale and on the applications of advanced approaches for fracture and fatigue life predictions under complex geometries or loading conditions.

Performance and Friction Properties of Injection Hybrid Moulds with Stereolithography Moulding Zones

2006 ◽  
Vol 514-516 ◽  
pp. 1673-1677 ◽  
Author(s):  
Mathias G. Westphal ◽  
António Sergio Pouzada ◽  
Gean V. Salmoria ◽  
Carlos H. Ahrens
Keyword(s):  
Structural Integrity ◽  
Chemical Properties ◽  
Rapid Manufacturing ◽  
Mechanical And Thermal Properties ◽  
Layer By Layer ◽  
Metallic Materials ◽  
Moulding Process ◽  
Photo Polymerization ◽  
Geometric Precision ◽  
And Chemical Properties

Stereolithography is a rapid manufacturing process that builds objects layer-by-layer based on the photo polymerization of a liquid resin. Due to the good geometric precision, this process has been used in Rapid Tooling for injection moulding. These tools are suitable for the production of short runs of parts and prototypes, where without resorting to the manufacture of a conventional metallic mould. The mechanical and thermal properties of the stereolitography resins, used in the manufacture of hybrid moulds, differ substantially from those of the conventional metallic materials. Particularly they must be known for guaranteeing the structural integrity and the thermal performance of the mould. Also the chemistry behaviour of the resin in contact with the polymer is important when tribological aspects are involved, especially during the ejection of the moulding. In this work, the behaviour of hybrid moulds with SL Vantico 5260 resin moulding cores was assessed. Several thermoplastics (iPP, ABS, PET and PA 6.6) were moulded, and their mechanical, thermal and chemical properties considered and related to the performance of the moulding process. Also, the friction properties of the SL resin in contact with the moulded thermoplastic in moulding conditions were observed and considered in the context of the performance of hybrid moulds.

Chopinian Particularities in Piano’s Sonata op. 58

2021 ◽  
Vol 13 (62) (SI) ◽  
pp. 69-78
Author(s):  
Lioara FRĂȚILĂ
Keyword(s):  
Structural Integrity ◽  
Classical Type ◽  
Late Period ◽  
Structural Elements ◽  
Piano Sonata ◽  
Strong Connection ◽  
Sonata Cycle ◽  
Aesthetic Results ◽  
The Postponement

The paper herein highlights those aspects of Chopin’s Piano Sonata Op.58 that demonstrate the strong connection with the classical-type sonata, its significance and the evolution of expression. Chopin’s Third Piano Sonata, Op.58 is the largest solo work of his late period. Chopin’s successful combination of the Classical and the Romantic aesthetic, results in an effective balancing of structural integrity and emotional fulfilment. Every moment of Op.58 possesses qualities of movements in a traditional sonata cycle; however, the tendency to blend structural elements, the expansion of thematic material and the postponement of climaxes contribute to Chopin’s distinctive treatment of the sonata genre style include blurring of genres, complex use of chromaticism, intricacy of counterpoint, textural and thematic variety

scholarly journals Welding, Joining, and Coating of Metallic Materials

Materials ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2640
Author(s):  
Michael Zinigrad ◽  
Konstantin Borodianskiy
Keyword(s):  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Physical Vapor Deposition ◽  
Chemical Vapor ◽  
Metallic Substrate ◽  
Metallic Materials ◽  
Special Issue ◽  
Different Types ◽  
Recent Developments ◽  
Micro Arc Oxidation

Welding, joining, and coating of metallic materials are among the most applicable fabrication processes in modern metallurgy. Welding or joining is the manufacture of a metal one-body workpiece from several pieces. Coating is the process of production of metallic substrate with required properties of the surface. A long list of specific techniques is studied during schooling and applied in industry; several include resistant spot, laser or friction welding, micro arc oxidation (MAO), chemical vapor deposition (CVD), and physical vapor deposition (PVD), among others. This Special Issue presents 21 recent developments in the field of welding, joining, and coating of various metallic materials namely, Ti and Mg alloys, different types of steel, intermetallics, and shape memory alloys.

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