Modelling of delamination in composite shells under different temperature conditions

  • Rohan Nandkishor Soman Institute of Fluid-Flow Machinery, Polish Academy of Sciences
  • Wieslaw Ostachowicz Institute of Fluid-Flow Machinery, Polish Academy of Sciences/Warsaw University of Technology

Abstract

Composite shells and panels are widely used in aerospace structures. These are often subjected to defects and damage from both in-service and manufacturing events. Delamination is the most important damage defect. This paper deals with the computational modelling of delamination in laminated composite shells. The use of three-dimensional finite elements for determining delamination of these structures is computationally expensive. Here combined double-layer and single-layer shell elements are employed to study the effect of delamination on the strain values in the sample under purely bending loads. The computational load and the accuracy of the modelling approaches are compared. It is shown that a through-the-thickness delamination can be modeled and analyzed effectively without requiring a great deal of computing time and memory. Some of the results are compared with the experimental results.

Keywords

finite element modelling, delamination, strain, temperature,

References

[1] ABAQUS. Abaqus Analysis User’s Manual, version 6.12-3rd edition, 2013.
[2] C.N. Della, Free vibration analysis of composite beams with overlapping delaminations under axial compressive loading. Composite Structures, 133: 1168–1176, 2015.
[3] K. Majewska, R.Soman, M. Mieloszyk, W. Ostachowicz. Assessment of delamination in composite beam using infrared thermography, optical sensors and terahertz technique. In: Proceedings of SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, vol. 10170, p. 1017005. Portland, Oregon, United States, 2017.
[4] A. Riccio, R. Cristiano, G. Mezzacapo, M. Zarrelli, C. Toscano. Experimental investigation of delamination growth in composite laminates under a compressive load. Advances in Materials Science and Engineering, vol. 2017, 17 pages, 2017.
[5] A. Riccio, A. Raimondo, S. Fragale, F. Camerlingo, B. Gambino, C. Toscano, D. Tescione. Delamination buckling and growth phenomena in stiffened composite panels under compression. Part I: An experimental study. Journal of Composite Materials, 48(23): 2843–2855, 2014.
[6] K. Senthil, A. Arockiarajan, R. Palaninathan, B. Santhosh, K. Usha. Defects in composite structures: Its effects and prediction methods – A comprehensive review. Composite Structures, 106: 139–149, 2013.
[7] R. Soman, K. Majewska, M. Mieloszyk, P. Malinowski, W. Ostachowicz. Kalman filter based neutral axis tracking under varying temperature conditions. In: Proceedings of the 8th European Workshop on Structural Health Monitoring (EWSHM 2016), Bilbao, Spain, 2016.
[8] R. Soman, K. Majewska, M. Mieloszyk, P. Malinowski, W. Ostachowicz. Application of Kalman filter based neutral axis tracking for damage detection in composites structures. Composite Structures, 184: 66–77, 2018.
[9] A. Tafreshi. Efficient modelling of delamination buckling in composite cylindrical shells under axial compression. Composite Structures, 64(3): 511–520, 2004.
[10] A. Tafreshi. Delamination buckling and postbuckling in composite cylindrical shells under combined axial compression and external pressure. Composite Structures, 72(4): 401–418, 2006.
[11] A. Tafreshi. Instability of delaminated composite cylindrical shells under combined axial compression and bending. Composite Structures, 82(3): 422–433, 2008.
Published
Jul 6, 2018
How to Cite
SOMAN, Rohan Nandkishor; OSTACHOWICZ, Wieslaw. Modelling of delamination in composite shells under different temperature conditions. Computer Assisted Methods in Engineering and Science, [S.l.], v. 24, n. 2, p. 127-135, july 2018. ISSN 2299-3649. Available at: <https://cames.ippt.pan.pl/index.php/cames/article/view/186>. Date accessed: 26 jan. 2022. doi: http://dx.doi.org/10.24423/cames.186.
Section
Articles