Forensic Biomechanics

"The book not only provides an in-depth examination of the field of trauma biomechanics, but also discusses the role of biomechanical principles in the analysis of blood-splatter patterning, assault and child abuse, ballistics and the investigation of the fracture of fibers and textiles"--Provided by publisher.

Auteur

Jules Kieser Director, Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand

Michael Taylor Science Leader, Institute of Environmental Science and Research (ESR), Christchurch Science Centre, New Zealand

Debra Carr Impact and Armour Group, Department of Engineering and Applied Science, Cranfield Defence and Security, Cranfield University, Defence Academy of the United Kingdom, Shrivenham, Wiltshire, United Kingdom

Texte du rabat
Forensic Biomechanics explains the role of biomechanics in forensic investigation. The book not only provides an in-depth examination of the field of trauma biomechanics, but also discusses the role of biomechanical principles in the analysis of blood-splatter patterning, assault and child abuse, ballistics and the investigation of the fracture of fibers and textiles. Focusing on research into the basic principles of hard and soft tissue mechanics, approaches to the use of biomechanics in forensic investigation and the application of biomechanical principles to the interpretation of forensic evidence, the text encourages a multidisciplinary approach. This approach includes detailed information on the biomechanics of the human body, covering bone, skin and soft tissue, blood and fluids and the behaviour of natural fibers. Comprehensive overview of the role of biomechanics in forensic investigation Avoids high level mathematics for an accessible approch Illustrated with real life case studies Unique approach to the subject that brings together multidisciplinary approaches to forensic biomechanics * invaluable reference for practicing forensic scientists, defence lawyers or postgraduate students and researchers looking for an overview of the subject

Résumé
Biomechanics is the application of mechanical principles to living organisms, and it is one of the most exciting and fastest growing research areas. In forensic science, it is biomechanics that explains trauma to the body at a crime scene or the fracture of fibers and textiles, and helps interpret blood spatter.

Contenu

Series Foreword ix Acknowledgements xi

1 Introduction 1
*Jules Kieser*

2 Basic principles of biomechanics 7
*Jules Kieser*

2.1 Forces and motion 9

2.2 Stress and strain 12

2.3 Basics of biomechanical behaviour 17

2.4 Biomaterials and viscoelasticity 21

2.5 Acceleration and impact 25

2.6 Fracture behaviour 26

2.7 Ballistic biomechanics 29

3 Biomechanics of bone and bony trauma 35
*Jules Kieser*

3.1 Composition of bone 37

3.2 Types of bone 38

3.3 Biomechanical properties of bone 39

3.4 Compressive and tensile fracture patterns 45

3.5 Blunt and sharp force trauma 50

3.6 Ballistic trauma 54

3.7 Living versus postmortem fracture 62

3.8 Bone fracture in infants 64

4 Biomechanics of skin and soft tissue trauma 71
*Jules Kieser*

4.1 Structure of skin 73

4.2 Mechanical properties of skin 75

4.3 Effect of age 78

4.4 Wounding 80

4.5 Sharp force trauma 81

4.6 Blunt force trauma 85

4.7 Ballistic trauma 88

4.8 Bitemarks 92

5 The mechanics of bloodstain pattern formation 99
*Mark Jermy and Michael Taylor*

5.1 Introduction to bloodstain pattern analysis 101

5.2 Forces acting on fluids 104

5.3 Dimensionless numbers 114

5.4 Fluid properties of blood 116

5.5 The creation of droplets 118

5.6 Droplet flight 126

5.7 Droplet impact: bloodstain formation 128

6 Fibres and textiles 137
*Debra Carr*

6.1 Introduction 139

6.2 Fabric layers 143

6.3 Fabric degradation 144

6.4 Ballistic impacts 144

6.5 Sharp impacts 146

6.6 Blunt impacts 149

6.7 Tearing 151

Acknowledgements 153

Index 159