Micromechanisms of fracture and fatigue. In a multiscale context
type: Item
instance of: scholarly article
title: Micromechanisms of fracture and fatigue. In a multiscale context
zbMATH Open document ID: 1206.74002
DOI: 10.1007/978-1-84996-266-7
author: Jaroslav Pokluda
author: Pavel Šandera
published in: Engineering Materials and Processes
publication date: 2010-08-04T00:00:00Z
review text: The book presents a modern view on micromechanisms of fracture and fatigue of metallic materials and alloys. The book consists of three basic chapters and a concluding chapter covering the main results of the book. Three sections of Chapter 1 are devoted to the mechanical behavior of perfect crystals. The first section discusses the application of ab initio methods to calculations of elastic stress-strain response and defines ideal strength under various loading conditions developing two-scale models based on electronic and atomic structures. The authors describe a difference between intrinsic lattice properties and those induced by defects and secondary phases of materials and composites. The second section presents the brittle/ductile behavior of perfect crystals based on the three-scale approaches dealing with electronic, atomic and crystallographic structures of crystals. The authors also consider here the multiscale models coupling atomistic, crystallographic and fracture mechanics methods. The third section models nanoindentation tests with regard to the physical interpretation of pop-ins observed at the end of the elastic part in the force-indentation depth diagram. This model couples numerical methods and results covering all spatial scales from nano to macro. Chapter 2 studies damage and fracture mechanisms operating under monotonically increasing forces applied to metallic and ceramic materials (in particular, brittle, quasi-brittle and ductile fracture). First, the micromechanisms of crack shielding and amplification induced by crack trajectory and interaction with particles and microcracks are present by using theoretical background and practical examples. Then, a statistical approach to geometrical shielding effects occurring in multi-phase materials is outlined based on two-level concept giving quantitative interpretation of results obtained for fracture toughness and the absorbed impact energy (notch toughness) of some metallic materials. In order to …
Mathematics Subject Classification ID: 74-02
Mathematics Subject Classification ID: 74A45
Mathematics Subject Classification ID: 74Rxx
zbMATH DE Number: 5763811
zbMATH Keywords: brittle fracture
zbMATH Keywords: ductile failure
zbMATH Keywords: damage
zbMATH Keywords: crack shielding
zbMATH Keywords: crack amplification
zbMATH Keywords: crystal strength
reviewed by: Ivan A. Parinov
MaRDI profile type: Publication
full work available at URL: https://doi.org/10.1007/978-1-84996-266-7
OpenAlex ID: W2502344124
description: scientific article; zbMATH DE number 5763811