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Ultrasonic characterization of aerospace composites
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Haldren, Harold Perey, Daniel Johnston, Patrick Leckey, Cara |
| Copyright Year | 2015 |
| Description | Composite materials have seen an increased use in aerospace in recent years and it is expected that this trend will continue due to the benefits of reduced weight, increased strength, and other factors. Ongoing work at NASA involves the investigation of the large-scale use of composites for spacecraft structures (SLS components, Orion Composite Crew Module, etc). NASA is also involved in work to enable the use of composites in advanced aircraft structures through the Advanced Composites Project (ACP). In both areas (space and aeronautics) there is a need for new nondestructive evaluation and materials characterization techniques that are appropriate for characterizing composite materials. This paper will present an overview of NASA's needs for characterizing aerospace composites, including a description of planned and ongoing work under ACP for the detection of composite defects such as fiber waviness, reduced bond strength, delamination damage, and microcracking. The research approaches include investigation of angle array, guided wave, and phase sensitive ultrasonic methods. The use of ultrasonic simulation tools for optimizing and developing methods will also be discussed. |
| File Size | 3029512 |
| Page Count | 22 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20160006086 |
| Archival Resource Key | ark:/13960/t80k7cr0x |
| Language | English |
| Publisher Date | 2015-06-22 |
| Access Restriction | Open |
| Subject Keyword | Composite Materials Microcracks Spacecraft Modules Nondestructive Tests Joints Junctions Delaminating Aircraft Construction Materials Spacecraft Structures Composite Structures Spacecraft Construction Materials Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Presentation |
