Abstract
This paper presents elastic buckling and post-buckling analysis of an axially loaded isotropic beam-plate with an across-the-width delamination located at a given depth, subjected to in-plane compression. A simple analytical model for determining the global buckling load of the plate with delamination and the mode shape is developed, for various delamination depths and lengths. The influence of applied load on the displacement for a given crack length and depth is studied in the post-buckling state where the nonlinear large rotations are included. It is observed that the global buckling load for local delamination buckling increases with the increase in delamination depth from the upper surface, for a given delamination length, and the buckling load decreases if delamination length increases for a given delamination depth. In the post-buckling analysis, the displacement increases as the applied load increases. Strain energy release rate is calculated in the post-buckling state for both unconstrained and constrained local buckling modes.
Similar content being viewed by others
Abbreviations
- \({{\varvec{a}}}\) :
-
Spanwise location of crack
- \({{\varvec{b}}}\) :
-
Crack length
- :
-
Depth from the upper surface
- :
-
Depth from the lower surface
- :
-
Depth of beam
- \({{\varvec{l}}}\) :
-
Length of beam
- b :
-
\({{\varvec{b}}} /{{\varvec{l}}}\)(non-dimensional)
- a :
-
\({{\varvec{a}}} /{{\varvec{l}}}\)(non-dimensional)
- \({\hbox {d}_{2}}\) :
-
(non-dimensional)
- \({\hbox {d}_{3}}\) :
-
(non-dimensional)
- \({P}_{i}\) :
-
Applied compressive load in ith region
- \({D}_{i}\) :
-
Flexural rigidity of ith region
- \({w}_{i}\) :
-
Transverse deflection of ith beam
- \({A}_{\mathrm{ci}}\) :
-
Area of cross section of ith region
- G:
-
Energy release rate
References
Chai, H., Babcock, C.D., Knauss, W.: One dimensional modeling of failure in laminated plates by delamination buckling. Int. J. Struct. 17, 1069–1083 (1981)
Wan-Lee, Yin, Wang, J.T.S.: The energy release rate in the growth of a one-dimensional delamination. J. Appl. Mech. 51, 939–941 (1984)
Kardomateas, G.A., Schmuesert, D.W.: Buckling and post buckling of delaminated composites under compressive loads including transverse shear effects. AIAA J. 26, 337–343 (1988)
Williams, J.F., Stouffer, D.C., Ilic, S., Jones, R.: An analysis of delamination behaviour. Compos. Struct. 5, 203–216 (1986)
Chen, H.P.: Shear deformation theory for compressive delamination buckling and growth. AIAA J. 29, 813–819 (1991)
Moradi, S., Taheri, F.: Application of DQM as an effect solution tool for buckling response of delaminated composite plates. Compos. Struct. 51, 439–449 (2001)
Parlapalli, M.S.Rao, Shu, Dongwei: Buckling analysis of two-layer beams with an asymmetric delamination. Eng. Struct. 26, 651–658 (2004)
Senthil, K., Arockiarajan, A., Palaninathan, R., Santhosh, B., Usha, K.M.: Defects in Composite structures: its effect and prediction methods-A comprehensive review. Compos. Struct. 106, 139–149 (2013)
Moradi, S., Taheri, F.: Application of the differential quadrature method to the analysis of delamination buckling of composite beam-plates. In: Proceedings of the Computer Modelling and Simulations in Engineering, International conference on Computational Engineering Science, pp. 1238–1243 (1997)
Simitses, G.J., Sallam, S., Yin, W.L.: Effect of delamination of axially loaded homogeneous laminated plates. AIAA J. 23, 1437–1444 (1985)
Hutchinson, W., Suo, Z.: Mixed mode cracking in layered materials Adv. Appl. Mech. 29, 63–191 (1992)
Karihaloo, B.L., Stang, H.: Buckling-driven delamination growth in composite laminates: guidelines for assessing the threat posed by interlaminar matrix delamination. Compos. Part B 39, 386–395 (2008)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Chattopadhyay, L., Jain, P.K. Energy release rate for constrained and unconstrained modes in a delaminated beam-plate subjected to compressive load. Arch Appl Mech 86, 907–919 (2016). https://doi.org/10.1007/s00419-015-1069-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00419-015-1069-5