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Träfflista för sökning "WFRF:(Bru Thomas) srt2:(2019)"

Sökning: WFRF:(Bru Thomas) > (2019)

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1.
  • Costa, Sergio, 1987, et al. (författare)
  • Improvement and validation of a physically based model for the shear and transverse crushing of orthotropic composites
  • 2019
  • Ingår i: Journal of Composite Materials. - : SAGE Publications. - 1530-793X .- 0021-9983. ; 53:12, s. 1681-1696
  • Tidskriftsartikel (refereegranskat)abstract
    • This paper details a complete crush model for composite materials with focus on shear dominated crushing under a three-dimensional stress state. The damage evolution laws and final failure strain conditions are based on data extracted from shear experiments. The main advantages of the current model include the following: no need to measure the fracture toughness in shear and transverse compression, mesh objectivity without the need for a regular mesh and finite element characteristic length, a pressure dependency of the nonlinear shear response, accounting for load reversal and some orthotropic effects (making the model suitable for noncrimp fabric composites). The model is validated against a range of relevant experiments, namely a through-the-thickness compression specimen and a flat crush coupon with the fibres oriented at 45° and 90° to the load. Damage growth mechanisms, orientation of the fracture plane, nonlinear evolution of Poisson's ratio and energy absorption are accurately predicted.
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2.
  • Wilhelmsson, Dennis, 1980, et al. (författare)
  • Compressive strength assessment of a CFRP aero-engine component – An approach based on measured fibre misalignment angles
  • 2019
  • Ingår i: Composite structures. - : Elsevier Ltd. - 0263-8223 .- 1879-1085. ; 233
  • Tidskriftsartikel (refereegranskat)abstract
    • In this paper we apply a recently developed methodology to assess the compressive strength of an aero-engine component based on measured fibre misalignment angles. The component is a fan outlet guide vane made from a carbon fibre reinforced polymer, which was manufactured and tested by GKN Aerospace in Sweden. The main novelty with this work is that kink-band formation is predicted from measurements of fibre misalignment angles with high spatial resolution in a real component. In addition, we validate the recently published “defect severity model” on unidirectional specimens of the same material system as the aerospace component. We confirm high accuracy of the model for prediction of compressive strength on unidirectional composite laminates. Further work is however needed to extend the methodology for cases where progressive damage leads to final failure. 
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  • Resultat 1-2 av 2
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refereegranskat (2)
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Asp, Leif, 1966 (1)
Bru, Thomas (1)
Wilhelmsson, Dennis, ... (1)
Bru, Thomas, 1990 (1)
Olsson, Robin, 1958 (1)
Costa, Sergio, 1987 (1)
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Portugal, André (1)
Rikemanson, D. (1)
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Chalmers tekniska högskola (2)
RISE (2)
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Engelska (2)
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