Workshop On Requirements For Aircraft Corrosion Control Papers Presented At The 56th Meeting Of The Structures And Materials Panel In London Uk On 10 15 April 1983
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The Fatigue in Aircraft Corrosion Testing (FACT) Programme
| Author | : R. J. H. Wanhill |
| Publisher | : |
| Total Pages | : 330 |
| Release | : 1989 |
| Genre | : Aeronautics |
| ISBN | : |
In accordance with the mission of AGARD the Structures and Materials Panel (SMP) has always kept an open eye for the possibilities to sponsor collaborative programmes of research. AGARD is unique in its ability to realise the cooperation of laboratories in up to sixteen nations. In this way AGARD distinguishes itself from other international scientific and technical organisations. In the 1970s the SMP decided to embark on collaborative research activities in the area of fatigue. One of the first activities was the Corrosion Fatigue Cooperative Testing Programme (CFCTP), the recursor to the Fatigue in Aircraft Corrosion Testing (FACT) programme. Both programmes are described in this report. Failure by fatigue and degradation by corrosion continue to be major considerations in aircraft design. Environmental effects influence both initiation and propagation of fatigue cracks, and dynamic loading may cause more rapid deterioration of corrosion protection systems. Therefore the conjuoint action of dynamic loading and environmental attack, i.e. corrosion fatigue, requires special attention. Many corrosion fatigue tests have been done on aluminum alloys. However, few included critical structural details like joints, under realistic cyclic load histories and in service-like environments. Even fewer used practical corrosion protection systems. These aspects are specifically addressed bye the CFCTP and FACT programmes. The results provide a significant contribution to the understanding of aircraft corrosion fatigue and should encourage further investigation in this difficult and challenging area of aerospace technology.
Proceedings of the Workshop on Requirements for Aircraft Corrosion Control Held in London on 10-15 April 1983
| Author | : W. M. Imrie |
| Publisher | : |
| Total Pages | : 78 |
| Release | : 1984 |
| Genre | : |
| ISBN | : |
At this workshop relatively short presentations were made by specialists in the areas of procurement and design specifications, manufacturing and maintenance practice, costs and future efforts; each series of papers was followed by a discussion period. There were differing opinions on the continued use of magnesium alloy castings by the UK. However, the relatively complex protection procedures for successfully combating corrosion and damage were described by the British in some detail. On the question of the prohibition of chromates and cadmium, the general consensus was that no overall satisfactory alternatives have been forthcoming. Several speakers referred to the difficulty of getting good feedback on corrosion problems. Efforts to combat this difficulty appear to have been achieved with some success in the US Navy by the introduction of a system whereby trained maintenance personnel at three levels are required to report back to a data collection system. The cost of corrosion prevention and maintenance proved a difficult subject for discussion. No clear answer was available as to the extent procurement personnel would be prepared to pay for extra protection.
Defects and Damage in Composite Materials and Structures
| Author | : Rikard Benton Heslehurst |
| Publisher | : CRC Press |
| Total Pages | : 216 |
| Release | : 2014-04-21 |
| Genre | : Technology & Engineering |
| ISBN | : 146658047X |
The advantages of composite materials include a high specific strength and stiffness, formability, and a comparative resistance to fatigue cracking and corrosion. However, not forsaking these advantages, composite materials are prone to a wide range of defects and damage that can significantly reduce the residual strength and stiffness of a structure or result in unfavorable load paths. Emphasizing defect identification and restitution, Defects and Damage in Composite Materials and Structures explains how defects and damage in composite materials and structures impact composite component performance. Providing ready access to an extensive, descriptive list of defects and damage types, this must-have reference: Examines defect criticality in composite structures Recommends repair actions to restore structural integrity Discusses failure modes and mechanisms of composites due to defects Reviews NDI processes for finding and identifying defects in composite materials Relating defect detection methods to defect type, the author merges his experience in the field of in-service activities for composite airframe maintenance and repair with indispensable reports and articles on defects and damage in advanced composite materials from the last 50 years.
Corrosion Control for Offshore Structures
| Author | : Ramesh Singh |
| Publisher | : Gulf Professional Publishing |
| Total Pages | : 254 |
| Release | : 2014-08-12 |
| Genre | : Technology & Engineering |
| ISBN | : 0124046908 |
A variable game changer for those companies operating in hostile, corrosive marine environments, Corrosion Control for Offshore Structures provides critical corrosion control tips and techniques that will prolong structural life while saving millions in cost. In this book, Ramesh Singh explains the ABCs of prolonging structural life of platforms and pipelines while reducing cost and decreasing the risk of failure. Corrosion Control for Offshore Structures places major emphasis on the popular use of cathodic protection (CP) combined with high efficiency coating to prevent subsea corrosion. This reference begins with the fundamental science of corrosion and structures and then moves on to cover more advanced topics such as cathodic protection, coating as corrosion prevention using mill applied coatings, field applications, and the advantages and limitations of some common coating systems. In addition, the author provides expert insight on a number of NACE and DNV standards and recommended practices as well as ISO and Standard and Test Methods. Packed with tables, charts and case studies, Corrosion Control for Offshore Structures is a valuable guide to offshore corrosion control both in terms of its theory and application. Prolong the structural life of your offshore platforms and pipelines Understand critical topics such as cathodic protection and coating as corrosion prevention with mill applied coatings Gain expert insight on a number of NACE and DNV standards and recommended practices as well as ISO and Standard Test Methods.
