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Assembly induced delaminations in composite structures
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Wanthal, S. Kautz, E. Bohlmann, R. Goering, J. Neri, Lawrence M. |
| Copyright Year | 1992 |
| Description | Experimental and analytical studies of the development of delaminations around fastener holes in composite structures are presented. This type of delamination is known to occur in composite skins that are mechanically fastened to a poorly mating substructure. Results of an experimental study to determine the resistance of laminates to the initiation of assembly induced delaminations and the residual strength of assembly damaged coupons are presented for AS4/3501-6, IM7/8551-7A, and AS4/PEEK material systems. A survey of existing analytical models for predicting the residual strength and stability of delaminations is presented, and the development of a new model for predicting the initiation of delaminations around a fastener hole is outlined. The fastener hole damage initiation model utilizes a finite element based Fourier series solution, and is validated through comparisons of analytical and experimental results. |
| File Size | 1406519 |
| Page Count | 26 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19950021858 |
| Archival Resource Key | ark:/13960/t9d55jq52 |
| Language | English |
| Publisher Date | 1992-09-01 |
| Access Restriction | Open |
| Subject Keyword | Composite Materials Finite Element Method Delaminating Fasteners Mathematical Models Laminates Fourier Series Composite Structures Bonding Residual Strength Holes Mechanics Crack Initiation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
