Fiber-oriented repair geometries for composite materials
| Autor: | I. Ehrlich, J. Holtmannspötter, M. Niedernhuber |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
business.industry Mechanical Engineering Fiber orientation 02 engineering and technology Structural engineering 021001 nanoscience & nanotechnology Industrial and Manufacturing Engineering Finite element method Shear (sheet metal) 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Ultimate tensile strength Ceramics and Composites Perpendicular Fiber Composite material 0210 nano-technology business Reduction (mathematics) Joint (geology) |
| Zdroj: | Composites Part B: Engineering. 94:327-337 |
| ISSN: | 1359-8368 |
| Popis: | In this paper, the idea of fiber-oriented repair geometries for carbon fiber reinforced plastics (CFRP) is investigated. It considers the differing mechanical properties of unidirectional fiber reinforced material by excluding overlapping regions perpendicular to the fiber direction of the particular layer. A mechanical and numerical comparison of tensile strength of stepped joints with continuous step lengths per ply and stepped joints with reduced step lengths in plies with fiber orientation differing from load direction is performed. Finite element simulations show similar shear stresses. Mechanical tests of CFRP laminates with stepped joints show no significant deviation in tensile strength, in spite of a joint length reduction of nearly 40%. This leads to the possibility of a significant reduction of repair area. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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