Computational modelling of thermal impact welded PEEK/steel single lap tensile specimens
| Autor: | Andreas Menzel, Martin Bos, Rainer Renz, Ellen Kuhl, J Utzinger, Paul Steinmann, Martin Floeck, Alois K. Schlarb, Klaus Friedrich |
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| Rok vydání: | 2008 |
| Předmět: |
Materials science
General Computer Science Constitutive equation General Physics and Astronomy General Chemistry Welding Finite element method law.invention Computational Mathematics Mechanics of Materials law Electronic speckle pattern interferometry Ultimate tensile strength Displacement field Peek Forensic engineering General Materials Science Composite material Tensile testing |
| Zdroj: | Computational Materials Science. 41:287-296 |
| ISSN: | 0927-0256 |
| Popis: | In this contribution, an interfacial traction-separation-law based on elastoplasticity with Lemaitre-type-damage is applied. Related constitutive equations are decoupled with respect to a local orthonormal frame such that the stress–strain response is controlled independently in these directions. The constitutive traction-separation-law is applied to the simulation of thermal impact welded (TIW) single lap tensile specimens. The specimens consist of two steel substrates and a PEEK foil which is laid in between the joining zone. Tensile tests and electronic speckle pattern interferometry (ESPI) are consulted to verify the simulations. To provide brief background information, a short review on the manufacturing method of TIW and the method of ESPI is included. The comparisons of measurements and computations show that one-dimensional integral data given by global force–displacement-curves can be simulated sufficiently accurate. Two-dimensional data given by displacement and strain fields reveal good similarities between measurements and computations. |
| Databáze: | OpenAIRE |
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