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Abstract

In this study, elastic-plastic stress analysis is carried out on simply supported symmetric cross-ply [0 / 90]₂ and angle-ply [30 / 30]₂, [45 / 45]₂, [60 / 60]₂ thermoplastic laminated plates under thermal loads varying linearly through the thickness. An analytical solution is performed for satisfying thermal elastic-plastic stress-strain relations and boundary conditions for small plastic deformations. Tsai-Hill Criterion is used as a yield criterion. The composite material is assumed to be linear hardening. Residual stresses distributions along the thickness of the plates are obtained and presented in figures. All the residual stress moments are in balance with respect to middle plane of the laminates since they are symmetric in opposite signs.

Keywords

thermoplastic composite elastic-plastic stress analysis residual stress laminated plate thermal stress analysis

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References

1. Ji-Fan He (1995). Thermoelastic analysis of laminated plates including transverse shear deformation effects. J. Composite Structures, 30: 51-59.

2. Jiang, Z. , Lian J. , Yang, D. and Dong, S (1998). An analytical study of the influence of thermal residual stresses on the elastic and yield behaviors of short fiber-reinforced metal matrix composites. Materials Science and Engineering A248, 256-275.

3. Sayman, O. and Kayrici, M. (2000). An elastic-plastic stress analysis in a thermoplastic composite cantilever beam. Composite Science and Technology, 60: 623-631.

4. Jeronimidis, G. and Parkyn, A.T. (1998). Residual stress in carbon fiber-thermoplastic matrix laminates. Journal of Composite Materials, 22(5): 401-415.

5. Trende, A. Astrom, B.T. and Nilson, G. (2000). Modeling of residual stresses in compression molded glass-mat reinforced thermoplastics. Composites, Part A: Applied Science and Manufacturing, Part A 31, pp. 1241-1254.

6. Pomies, F. and Carlsson, A. (1994). Analysis of modulus and strength of dry and wet thermoset and thermoplastic composites loaded in transverse tension. J. Composite Materials, 28(1).

7. Barnes, J.A. (1993). Thermal expansion behavior of thermoplastic composites. J. Materials Science, 28: 4974-4982.

8. Karakaya, M. and Sehitoglu, H. (1996). Failure behavior of unidirectional AS4/3501-6 carbon/epoxy laminates. J. Composite Materials, 30(10).

9. Atas, C. and Sayman, O. (2000). Elastic-plastic stress analysis and expansion of plastic zone in clamped and simply supported aluminum metal-matrix laminated. Composite Structures, 49: 9-19.

10.

10. Yoon, J.K. and Kim, J. (2000). Prediction of thermal expansion properties of carbon/epoxy laminates for temperature variation. J. Composite Materials, 34(2): 91-101.

11.

11. Jones, R.M. (1975). Mechanics of Composite Materials. Texas: McGraw-Hill.

12.

12. Jones, R.M. (1999). Mechanics of Composite Materials. Philadelphia: Taylor and Francis.

13.

13. Owen, D.R.J. and Hinton, E. (1980). Finite Elements in Plasticity. Swansea: Pineridge Press Limited.

Elastic-Plastic Stress Analysis on Simply Supported Thermoplastic Laminated Plates Under Thermal Loads Varying Linearly

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