Micromechanics and Nanosimulation of Metals and Composites: by Siegfried Schmauder

By Siegfried Schmauder

This e-book offers perception into complex numerical and experimental investigations of the microstructural elements of power and harm of metals and metal-based composites.

In specific, atomistic and dislocation types, micromechanical simulations and homogenization ideas, in addition to experimental observations together with laptop simulations, are defined. those tools are effectively utilized to research the mechanical habit of metals and metal-matrix composites. Examples of the functions of the defined equipment comprise the research of microstructure/failure-resistance relationships of device steels, harm in aluminum-based forged alloys in addition to deformation, energy and fracture of not easy metals.

The publication addresses scientists, graduate and postgraduate scholars, in addition to engineers, within the fields of fabrics technology and engineering.

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Extra info for Micromechanics and Nanosimulation of Metals and Composites: Advanced Methods and Theoretical Concepts

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The direct in situ observation of the fracture mechanisms of the steels under a microscope is quite difficult as compared with the case of more ductile materials, since the material fails abruptly. Then, not only qualitative parameters of fracture (like its mechanisms) but also quantitative ones (like critical damage parameters) are of interest. The purpose of this work was to study the mechanisms and conditions of damage initiation and growth in the tool steels both qualitatively and quantitatively.

673. [12] Mishnaevsky Jr. , Schmauder S. (2001), in: ASME Int. Mechanical Engineering Congress and Exposition, New York, CD, Vol. 2. [13] Mishnaevsky Jr. L. (1998), Damage and Fracture of Heterogeneous Materials, Balkema, Rotterdam. ,. Weichert D,. , Gross- Weege A. (1998), Comp. Mater. Sci. II, p. 166. Chapter 2: Micromechanical Simulation of Composites The microstructure (fixed by features such as the grain size, the presence of particles, layers/coatings, impurities, and internal interfaces) frequently determines the properties (such as strength, toughness, and fracture energy) of advanced materials.

2000), Nucl. Eng. Design 196, pp. 175–83. 1 Embedded unit cells 1 Metal matrix composites (MMCs) are defined as ductile matrix materials reinforced by brittle fibers or particles. Under external loading conditions the overall response of MMCs is elastic-plastic. MMCs are frequently reinforced by continuous fibers which are aligned in order to make use of the high axial fiber strength. However, the mechanical behavior of these composites under transverse loading is well behind their axial performance [1-7].

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