Prediction of Bearing Strength in Fiber Metal Laminates

DOI Web Site 被引用文献2件
  • P.P. Krimbalis
    Department of Aerospace Engineering, Faculty of Engineering and Applied Science, Ryerson University, 350 Victoria Street Toronto, Ontario, Canada, M5B 2K3
  • C. Poon
    Department of Aerospace Engineering, Faculty of Engineering and Applied Science, Ryerson University, 350 Victoria Street Toronto, Ontario, Canada, M5B 2K3,
  • Z. Fawaz
    Department of Aerospace Engineering, Faculty of Engineering and Applied Science, Ryerson University, 350 Victoria Street Toronto, Ontario, Canada, M5B 2K3
  • K. Behdinan
    Department of Aerospace Engineering, Faculty of Engineering and Applied Science, Ryerson University, 350 Victoria Street Toronto, Ontario, Canada, M5B 2K3

説明

<jats:p> Finite element (FE) analyses are carried out on bolt bearing testing scenarios based on data found in the literature. Both layer-by-layer and smeared property FE models are created to calculate the compressive characteristic dimension (CCD) for three GLARE variants. A novel re-definition of conventional CCD is proposed which is governed by the yield strength of aluminum. The new definition also incorporates the two-phase nature of GLARE, as well as the delamination/ buckling phenomenon for pin/bolt bearing, in a bearing failure mode. A previously unconsidered, orthotropic plate buckling analysis is also conducted in a conservative, worst case scenario sense on the laterally unsupported prepreg layers. Results of the buckling analysis suggest that the prepreg contribution to bearing strength, in a bearing failure mode, is at best negligible and joint collapse is governed by the yielding and delamination of the aluminum layers. Calculation of a CCD, based on the new yield strength definition, produced consistent values amongst all GLARE variants considered in the layer-by-layer analysis suggesting that the CCD is a property of the material alone. </jats:p>

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