DOI QR코드

DOI QR Code

Implementation and assessment of advanced failure criteria for composite layered structures in FEMAP

  • 투고 : 2018.05.19
  • 심사 : 2018.09.06
  • 발행 : 2019.01.25

초록

AMOSC (Automatic Margin Of Safety Calculation) is a SW tool which has been developed to calculate the failure index of layered composite structures by referring to the cutting edge state-of-the-art LaRC05 criterion. The stress field is calculated by a finite element code. AMOSC allows the user to calculate the failure index also by referring to the classical Hoffman criterion (which is commonly applied in the aerospace industry). When developing the code, particular care was devoted to the computational efficiency of the code and to the automatic reporting capability. The tool implemented is an API which has been embedded into Femap Siemens SW custom tools. Then, a user friendly graphical interface has been associated to the API. A number of study-cases have been solved to validate the code and they are illustrated through this work. Moreover, for the same structure, the differences in results produced by passing from Hoffman to LaRC05 criterion have been identified and discussed. A number of additional comparisons have thus been produced between the results obtained by applying the above two criteria. Possible future developments could explore the sensitivity of the failure indexes to a more accurate stress field inputs (e.g. by employing finite elements formulated on the basis of higher order/hierarchical kinematic theories).

키워드

과제정보

연구 과제 주관 기관 : Thales Alenia Space

참고문헌

  1. Davidson, P. and Waas, A.M. (2014), "Mechanics of kinking in fiber-reinforced composites under compressive loading", J. Compos. Mater., 21(6), 667-684.
  2. Davila, C.G. and Camanho, P.P. (2003), "Failure criteria for FRP laminates in plane stress"; L-19012, NASA Langley Research Center, U.S.A.
  3. Deuschle, H.M. and Puck, A. (2013), "Application of the Puck failure theory for fibre-reinforced composites under three-dimensional stress: Comparison with experimental results", J. Compos. Mater., 47(6-7), 827-846. https://doi.org/10.1177/0021998312462158
  4. Grasso, A. (2018), "Implementation of classical and advanced failure criteria for composite layered structures in FEMAP and assessment of results", M.Sc. Dissertation, Politecnico di Torino, Torino.
  5. Hoffman, O. (1967), "The brittle strength of orthotropic materials", J. Compos. Mater., 1(2), 200-206. https://doi.org/10.1177/002199836700100210
  6. Kaddour, A.S. and Hinton, M.J. (2012), "Benchmarking of triaxial failure criteria for composite laminates: Comparison between models of 'Part (A)' of 'WWFE-II'", J. Compos. Mater., 46(19-20), 2595-2634. https://doi.org/10.1177/0021998312449887
  7. Kaddour, A.S. and Hinton, M.J. (2013), "Maturity of 3D failure criteria for fibre-reinforced composites: Comparison between theories and experiments: Part B of WWFE-II", J. Compos. Mater., 47(6-7), 925-966. https://doi.org/10.1177/0021998313478710
  8. Kaddour, A.S., Hinton, M.J., Smith, P.A. and Li, S. (2013), "The background to the third world-wide failure exercise", J. Compos. Mater., 47(20-21), 2417-2426. https://doi.org/10.1177/0021998313499475
  9. Nali, P. and Carrera, E. (2011), "A numerical assessment on two-dimensional failure criteria for composite layered structures", Compos. Part B Eng., 43(2), 280-289. https://doi.org/10.1016/j.compositesb.2011.06.018
  10. Pinho, S.T., Darvizeh, R., Robinson, P., Schuecker, C. and Camanho, P.P. (2012), "Material and structural response of polymer-matrix fibre-reinforced composites", J. Compos. Mater., 46(19-20), 2313-2341. https://doi.org/10.1177/0021998312454478
  11. Pinho, T., Davila, C.G., Camanho, P.P., Iannucci, L. and Robinson, P. (2005), "Failure models and criteria for FRP under in-plane or three-dimensional stress states including shear non-linearity"; L-19089, NASA Langley Research Center, U.S.A.
  12. Raghava, R., Caddell, R.M. and Yeh, G.S.Y. (1973), "The macroscopic yield behavior of polymers", J. Mater. Sci., 8(2), 225-232. https://doi.org/10.1007/BF00550671
  13. Zhang, D., Xu, L. and Ye, J. (2013), "Prediction of failure envelopes and stress-strain curves of fiber composite laminates under triaxial loads: Comparison with experimental results", J. Compos. Mater., 47(6-7), 763-776. https://doi.org/10.1177/0021998312456408