Environmental Degradation of Industrial Composites
Title | Environmental Degradation of Industrial Composites PDF eBook |
Author | Celine A Mahieux |
Publisher | Elsevier |
Pages | 323 |
Release | 2005-12-14 |
Genre | Technology & Engineering |
ISBN | 0080531059 |
Thanks to their low density and tailored properties, polymer matrix composites are attractive candidates for a large number of industrial applications ranging from aerospace to transportation and energy. However, the behaviour of polymer-based materials is strongly affected by a number of environmental factors. Environmental Degradation in Industrial Composites provides vital information on the effects of environmental factors such as temperature, liquid and gas exposure, electrical fields and radiations, and how micro- and micromechanical calculations during design and manufacture must take these effects into account. The book concludes with reviews on standard and specific testing methods for the various environmental factors and their combinations, helping mechanical/materials engineers and specifiers to predict possible changes due to environmental conditions. Each chapter is supplemented by industrial case studies to help in the understanding of degradation of composites in real life situations.This book will help you to...* Understand how environmental factors lead to degradation effects in polymer matrix composite structures* Build these factors into calculations when predicting the part performance and lifetime of structures* Compare real-life situations from case studies with your predicted results* Predict probable composite behaviour with greater accuracyThis book will help you to...* Understand how environmental factors lead to degradation effects in polymer matrix composite structures* Build these factors into calculations when predicting the part performance and lifetime of structures* Compare real-life situations from case studies with your predicted results* Predict probable composite behaviour with greater accuracy
Environmental Effects on Polymer-Matrix Composites
Title | Environmental Effects on Polymer-Matrix Composites PDF eBook |
Author | |
Publisher | |
Pages | 0 |
Release | 1997 |
Genre | |
ISBN |
A variety of environmental factors can influence the performance of advanced polymers and composites. In particular, exposure to a combination of moisture and elevated temperature can significantly alter properties. The extent of chemical and physical changes is a function of exposure time and the temperature and humidity of the environment. This work discusses the effects of chemical and physical aging of AFR700B, a high-temperature addition polyimide resin. Neat resin samples were isothermally aged for 500 and 1000 hours at 250 deg C in dry air, humid air, and dry nitrogen. Changes in the dynamic mechanical properties and weight of the resin samples after these different exposures are discussed. An accelerated aging process was developed to facilitate the study of hydrolytic degradation. The effect of degradation on the Tg, weight, and mechanical behavior is discussed. The use of a silicon-nitride moisture barrier proved ineffective.
High Temperature and Environmental Effects on Polymeric Composites
Title | High Temperature and Environmental Effects on Polymeric Composites PDF eBook |
Author | Thomas S. Gates |
Publisher | ASTM International |
Pages | 276 |
Release | 1997 |
Genre | Technology & Engineering |
ISBN | 9780803124240 |
Failure Mechanisms in Polymer Matrix Composites
Title | Failure Mechanisms in Polymer Matrix Composites PDF eBook |
Author | Paul Robinson |
Publisher | Woodhead Publishing Limited |
Pages | |
Release | 2016-06 |
Genre | |
ISBN | 9780081016534 |
Polymer matrix composites are replacing materials such as metals in industries such as aerospace, automotive and civil engineering. As composites are relatively new materials, more information on the potential risk of failure is needed to ensure safe design. This book focuses on three main types of failure: impact damage, delamination and fatigue. Chapters in Parts 1-4 describe the main types of failure mechanism and discuss testing methods for predicting failure in composites. Chapters in Parts 5 and 6 discuss typical kinds of in-service failure and their implications for industry.
Environmental Effects on the Material Integrity of Fiber Reinforced Polymer Matrix Composites
Title | Environmental Effects on the Material Integrity of Fiber Reinforced Polymer Matrix Composites PDF eBook |
Author | John Michael Dispennette |
Publisher | |
Pages | 172 |
Release | 1994 |
Genre | Active oxygen |
ISBN |
Environmental Effects on Composite Materials, Volume I
Title | Environmental Effects on Composite Materials, Volume I PDF eBook |
Author | George S. Springer |
Publisher | CRC Press |
Pages | 222 |
Release | 1981 |
Genre | Technology & Engineering |
ISBN |
Going to Extremes
Title | Going to Extremes PDF eBook |
Author | National Research Council |
Publisher | National Academies Press |
Pages | 80 |
Release | 2005-10-22 |
Genre | Technology & Engineering |
ISBN | 0309097150 |
Advanced polymer matrix composites (PMC) have many advantages such as light weight and high specific strength that make them useful for many aerospace applications. Enormous uncertainty exists, however, in predicting long-term changes in properties of PMCs under extreme environmental conditions, which has limited their use. To help address this issue, the Department of Defense requested a study from the NRC to identify the barriers and limitations to the use of PMCs in extreme environments. The study was to focus on issues surrounding methodologies for predicting long-term performance. This report provides a review of the challenges facing application of PMCs in extreme environments, the current understanding of PMC properties and behavior, an analysis of the importance of data in developing effective models, and recommendations for improving long-term predictive methodologies.