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Stress state calculation of a repair of a uni- or biaxially loaded laminate structure

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Abstract

The growing use of fibre-reinforced plastics requires adequate maintenance and repair behavior of these materials compared with the traditional metallic alloys. Due to the low tensile strength of fibre-reinforced materials perpendicular to the fibre direction, a bonded repair is the most suitable one and it will be considered in this paper. Based on the classical lamination theory, a model for the calculation of the shear stresses in a bonded repair under biaxial loading is developed. In addition to a simple model neglecting the stresses perpendicular to the laminate-plane, which is applied for a uni- and biaxial load case, a more complex model taking these stresses into account is developed. These models allow an estimation of whether a damaged shell can be repaired or must be replaced.

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Authors and Affiliations

  1. Institut für Werkstoffprüfung und Werkstofftechnik, Germany

    H. Altenbach

  2. Graduiertenkolleg "Modellierung, Berechnung und Identifikation mechanischer Systeme,", Otto-von-Guericke University, P.O. Box 4120, 39016, Magdeburg, Germany

    H. Haars

Authors
  1. H. Altenbach
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  2. H. Haars
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Additional information

Published in Mekhanika Kompozitnykh Materialov, Vol. 31, No. 3, pp. 351–362, May–June, 1995.

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Altenbach, H., Haars, H. Stress state calculation of a repair of a uni- or biaxially loaded laminate structure. Mech Compos Mater 31, 255–265 (1995). https://doi.org/10.1007/BF00615639

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  • DOI: https://doi.org/10.1007/BF00615639

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