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Composites for Marine Structures
| Content Provider | Scilit |
|---|---|
| Author | Rajapakse, Y. D. S. |
| Copyright Year | 2020 |
| Description | Book Name: Design, Manufacturing & Application of Composites |
| Abstract | Composite materials are being used increasingly in marine structures due to many advantages. These applications challenge the designers, in view of the unique marine environment, with the presence of sea water and moisture, varying temperatures, and time-dependent three-dimensional loading due to wave slamming and other factors. In addition, Naval structures are required to withstand highly dynamic loading during combat situations, due to weapons impact, or to air or underwater explosions. The major factors governing the design of future Naval structures include: Affordability, Combat Effectiveness, Survivability, Reliability, Durability, and Structural Integrity. The “Composites for Marine Structures” research program at the Office of Naval Research provides the scientific basis for the effective design of affordable Naval structures utilizing composites and composite sandwich construction. It deals with the response of glass fiber and carbon fiber reinforced composites and composite sandwich structures to static, cyclic, and dynamic multi-axial loading conditions. An overview will be provided of this research program, with a discussion of its objectives, research issues, recent accomplishments, and future directions. Topics discussed will include: failure modes and failure criteria (3D); delamination growth under fatigue loading; dynamic constitutive behavior; dynamic failure modes; intersonic crack growth; the effect of moisture and sea water absorption; coupling effects between sea water absorption and mechanical fatigue; effect of hydrostatic pressure on constitutive behavior; failure modes in sandwich structures; impact damage in sandwich structures. The use of innovative experimental techniques for the real-time assesment of damage and failure will also be discussed. For example, coupling high speed photography, capable of 100 million frames per second, with advanced optical techniques for mapping full field deformations, and with infra-red sensor arrays for determining thermal fields in the vicinity of failure surfaces and crack fronts, have shown the importance of accounting for thermodynamic effects during dynamic failure. Examples of current and planned composite marine structures and structural components in the U.S. and Europe, will also be provided. |
| Related Links | https://api.taylorfrancis.com/content/chapters/edit/download?identifierName=doi&identifierValue=10.1201/9781003076155-18&type=chapterpdf |
| Ending Page | 47 |
| Page Count | 1 |
| Starting Page | 47 |
| DOI | 10.1201/9781003076155-18 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2020-11-27 |
| Access Restriction | Open |
| Subject Keyword | Book Name: Design, Manufacturing & Application of Composites Mechanical Engineering Structures Marine Dynamic Failure Behavior Europe Survivability Loading Sandwich |
| Content Type | Text |
| Resource Type | Chapter |
