This book contains analysis of reasons that cause products to fail. General methods of product failure evaluation give powerful tools in product improvement. Such methods, discussed in the book, include practical risk analysis, failure mode and effect analysis, preliminary hazard analysis, progressive failure analysis, fault tree analysis, mean time between failures, Wohler curves, finite element analysis, cohesive zone model, crack propagation kinetics, time-temperature collectives, quantitative characterization of fatigue damage, and fracture maps. Methods of failure analysis are critical to for material improvement and they are broadly discussed in this book. Fractography of plastics is relatively a new field which has many commonalities with fractography of metals. Here various aspects of fractography of plastics and metals are compared and contrasted. Fractography application in studies of static and cycling loading of ABS is also discussed. Other methods include SEM, SAXS, FTIR, DSC, DMA, GC/MS, optical microscopy, fatigue behavior, multiaxial stress, residual stress analysis, punch resistance, creep-rupture, impact, oxidative induction time, craze testing, defect analysis, fracture toughness, activation energy of degradation. Many references are given in this book to real products and real cases of their failure. The products discussed include office equipment, automotive compressed fuel gas system, pipes, polymer blends, blow molded parts, layered, cross-ply and continuous fiber composites, printed circuits, electronic packages, hip implants, blown and multilayered films, construction materials, component housings, brake cups, composite pressure vessels, swamp coolers, electrical cables, plumbing fittings, medical devices, medical packaging, strapping tapes, balloons, marine coatings, thermal switches, pressure relief membranes, pharmaceutical products, window profiles, and bone cements.


Researchers and engineers in the plastics industry concerned with the reasons why plastics components and parts fail and who want to increase life of a product.

Table of Contents

1. Practical Risk AnalysisùAs a Tool for Minimizing Plastic Product Failure 2. Avoiding the GIGO Syndrome 3. Defect Analysis and High Density Polyethylene Pipe Durability 4. Progressive Failure Analysis of Fiber Composite Structures 5. Failure Analysis Models for Polyacetal Molded Fittings in Plumbing Systems 6. Estimation of Time-Temperature-Collectives at Describing Aging of Polymer Materials 7. Fractography of Metals and Plastics 8. Fractography of ABS 9. Attachment Design Analysis of a Plastic Housing Joined with Snap-Fits 10. Joint Performance of Mechanical Fasteners under Dynamic Load 11. Morphological Study of Fatigue Induced Damage in Semi-Crystalline Polymers 12. Ductile Failure and Delayed Necking in Polyethylene 13. Fatigue Behavior of Discontinuous Glass Fiber Reinforced Polypropylene 14. Translating Failure into SuccessùLessons Learned from Product Failure Analysis 15. Case Studies of Plastics Failure Related to Improper Formulation 16. Case Studies of Inadvertent Interactions between Polymers and Devices in Field Applications 17. Factors Affecting Variation in Gardner Impact Testing 18. Standard Test Procedures for Relevant Material Properties for Structural Analysis 19. The Influence of Multidimensional State of Stress on the Mechanical Properties of Thermoplastics 20. The Influence of Morphology on the Impact Performance of an Impact Modified PP/PS Alloy 21. Morphology and Mechanical Behavior of Polypropylene Hot Plate Welds 22. Orientation Effects on the Weldability of Polypropylene Strapping Tape 23. Activation Energies of Polymer Degradation 24. Effects of Processing Conditions on the Failure Mode of an Aliphatic Polyketone Teropolymer 25. D


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© 2001
William Andrew
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About the author

John Moalli

Affiliations and Expertise

Exponent, USA