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Title of article :
Computational modelling of thermal impact welded PEEK/steel single lap tensile specimens
Author/Authors :
Utzinger، نويسنده , , Johannes L. Bos، نويسنده , , Martin and Floeck، نويسنده , , Martin and Menzel، نويسنده , , Andreas and Kuhl، نويسنده , , Ellen A. Renz، نويسنده , , Rainer and Friedrich، نويسنده , , Klaus and Schlarb، نويسنده , , Alois K. and Steinmann، نويسنده , , Paul، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
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Abstract :
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. mparisons 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.
Keywords :
Finite element method , Composites , Welding , Electronic speckle pattern interferometry , Interface , Traction-separation-law
Journal title :
Computational Materials Science
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