Fracture Behaviour of PolymersA.J. Kinloch Over recent years there has been a tremendous upsurge in interest in the fracture behaviour of polymers. One reason for this is the increas ing use of polymers in structural engineering applications, since in such circumstances it is essential to have as complete an understanding as possible of the polymer's fracture behaviour. This book is designed to meet the requirements of those who need to be informed of the latest developments in the field of polymer fracture. It is written particularly for research workers but it should also prove invaluable for advanced students taking final-year undergraduate or postgraduate courses. The main emphasis is upon the use of fracture mechanics in the study of polymer fracture but this approach is then developed to cover the micromechanisms of the fracture process. Particular prominence is given to the relationship between structure, mechanical properties and the mechanics and mechanisms of fracture. The first chapter is a brief introduction which has several aims. One is to introduce polymers to the reader who does not have a strong background in the subject and another is to provide background material that will be used at later stages. The book is then split into two main parts: the first deals with the mechanics and mechanisms whilst the second is concerned with materials. In Part I phenomena such as molecular fracture, fracture mechanics, shear yielding and crazing are covered from a general viewpoint. |
Contents
Shear Yielding | 37 |
PART IMECHANICS AND MECHANISMS | 38 |
1 | 71 |
Impact and Fatigue | 182 |
Crazing | 214 |
Glassy Polymers IThermoplastics | 229 |
1 | 233 |
Glassy Polymers IIThermosets | 286 |
Crystalline Polymers | 324 |
xvii | 348 |
Rubbers | 370 |
Toughened Multiphase Plastics | 421 |
473 | |
489 | |
490 | |
2 | 311 |
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Common terms and phrases
amorphous Andrews Appl Applied Science Publishers applied stress bonds brittle fracture chain constant crack growth crack initiation crack propagation crack tip crack velocity craze criterion cross-linked crystalline polymers dependence ductile effect elastic epoxy resins factor failure fatigue crack fibrils Fract fracture behaviour fracture energy fracture mechanics fracture surface geometry glassy polymers glassy thermoplastics impact strength impact tests increase K₁ Kinloch Kramer loading localised Macromol material measured micromechanisms modulus molar mass molecular fracture molecules notch occurs orientation parameters particles Phys plane plane-strain plastic deformation plastic zone PMMA polycarbonate polydiacetylene polyethylene polymer fibres polystyrene region rubber Science Publishers Ltd Section semicrystalline semicrystalline polymers shear bands shear yielding shown in Fig single crystal specimen spherulite static fatigue stick/slip strain stress concentration structure temperature tensile tensile stress thermoplastics thermosetting thermosetting polymers thickness tion transition viscoelastic Williams yield stress Young's modulus