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Strength and mechanics of bonded scarf joints for repair of composite materials
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Pipes, R. B. Adkins, D. W. |
| Copyright Year | 1982 |
| Description | Experimental and analytical investigations of scarf joints indicate that slight bluntness of adherend tips induces adhesive stress concentrations which significantly reduce joint strength, and the stress distribution through the adhesive thickness is non-uniform and has significant stress concentrations at the ends of the joint. The laminate stacking sequence can have important effects on the adhesive stress distribution. A significant improvement in joint strength is possible by increasing overlap at the expense of raising the repair slightly above the original surface. Although a surface grinder was used to make most experimental specimens, a hand held rotary bur can make a surprisingly good scarf. Scarf joints wit doublers on one side, such as might be used for repair, bend under tensile loads and may actually be weaker than joints without doublers. |
| File Size | 53074394 |
| Page Count | 190 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830007088 |
| Archival Resource Key | ark:/13960/t7gr1r68p |
| Language | English |
| Publisher Date | 1982-12-01 |
| Access Restriction | Open |
| Subject Keyword | Composite Materials Stress Concentration Joints Junctions Failure Modes Mechanical Properties Adhesive Bonding Maintenance Fourier Series Stress Distribution Differential Equations Series Expansion Shear Stress Scarfing Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
