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Mechanics of Material Simplified in 5 Days Vol FOUR: Making sense out of University Engineering Materials topics in the UK

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This book provides concise study notes that cover the mechanics of materials. This is Vol4 of the series, with coverage on fracture.

Day 1 - Introduction 3
The definitions 3
Historical development 4
The Griffith approach 6
The Inglis approach 7
The Irwin approach 8
Day 2 - Cracks 11
The atomistic view of fracture mechanics 11
The types 13
The shapes 15
Stress concentration 16
Stress intensity 18
Energy release rate 18
Local VS global crack conditions 19
The assumption of infinite plate 19
Finite plate vs infinite plate vs semi-finite plate 21
Day 3 - calculating stress 23
Stress concentration effects of flaws 23
The Griffith approach 26
Examples of stress calculation via stress concentration approach 27
Day 4 - Stress analysis near crack tips 31
Examples of calculation for finding K 33
Day 5 - Fracture toughness testing 35
Uniaxial loading VS biaxial loading 35
Modes of K and calculations 36
Ductile fracture 43
Brittle fracture 44
Fracture toughness and strength 45
Plane stress vs plane strain 47
Testing methods 48



Material mechanics, also known as solid mechanics or mechanics of materials, is a branch of mechanics that focuses on the behaviour of solid materials when subjected to external forces or loads. It is a fundamental field of study in engineering and physics and plays a crucial role in designing and analysing structures and mechanical systems. Material mechanics seeks to understand how materials deform, break, and respond to various types of forces and loads.

A UK university course on the mechanics of materials, often offered as part of engineering or materials science programs, typically covers the fundamental principles and concepts related to how materials respond to external forces and loads. Upon completion of the course, students should have a strong understanding of how materials respond to loads and be able to apply this knowledge to analyse and design engineering structures and components. Simply put, Mechanics of materials is a fundamental course for engineers, as it forms the basis for more advanced courses in structural analysis, materials engineering, and mechanical design.

This is NOT an officially endorsed study product. We are a third party developer NOT affiliated with any of the official exam authorities. We specialise in developing clear and concise study notes with material relevant for the exam and/or assignment. Our concise study notes provide a condensed version of the main concepts, ideas, and key information, making them easy to review and revisit when studying for exams or preparing for assessments. They allow learners to quickly refresh their memory without having to go through lengthy materials, saving time and effort. By distilling complex information into concise summaries, learners are forced to identify the most important points, aiding in better understanding and retention of the material.

Kindle Edition

Published November 29, 2023

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