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Article

# Elastic-Plastic Stress Analysis of Thermoplastic Matrix Laminated Composite Beams

by
Hasan Çallioğlu
1,*,
N. Sman Köksal
2,
Necati Ataberk
3 and
İdris Kaynak
4
1
Department of Mechanical Engineering, Pamukkale University, Çamlik Denizli, Turkey
2
Department of Mechanical Engineering, Celai Bayar University, Muradiye, Manisa, Turkey
3
Sarayönü Vocational Training School, Selçuk University, Konya, Turkey
4
Department of Mechanical Engineering, Dokuz Eylül University, Bornoya, İzmir, Turkey
*
Author to whom correspondence should be addressed.
Math. Comput. Appl. 2004, 9(1), 49-64; https://doi.org/10.3390/mca9010049
Published: 1 April 2004

## Abstract

This study deals with an elastic-plastic behavior of woven steel fibers reinforced thermoplastic matrix laminated composite beam subjected to a bending moment. The beam consists of symmetric four orthotropic layers and its material is assumed to be strain hardening. The Tsai-Hill theory is used as a yield criterion in the solution. The Bernoulli-Euler hypotheses are utilized for small plastic deformations. The beam lay-up sequences are chosen as [0°]4, [15°/-15°]s, [30°/-30°]s and [45°/-45°]s. The bending moment values that begin plastic flow at the upper and lower surfaces of the beam are carried out for various stacking sequences. The variations of the elastic, elastic-plastic and residual stress components versus increasing plastic region spread are given in tables and figures. The transverse displacement is obtained at the free end, numerically.

## Share and Cite

MDPI and ACS Style

Çallioğlu, H.; Sman Köksal, N.; Ataberk, N.; Kaynak, İ. Elastic-Plastic Stress Analysis of Thermoplastic Matrix Laminated Composite Beams. Math. Comput. Appl. 2004, 9, 49-64. https://doi.org/10.3390/mca9010049

AMA Style

Çallioğlu H, Sman Köksal N, Ataberk N, Kaynak İ. Elastic-Plastic Stress Analysis of Thermoplastic Matrix Laminated Composite Beams. Mathematical and Computational Applications. 2004; 9(1):49-64. https://doi.org/10.3390/mca9010049

Chicago/Turabian Style

Çallioğlu, Hasan, N. Sman Köksal, Necati Ataberk, and İdris Kaynak. 2004. "Elastic-Plastic Stress Analysis of Thermoplastic Matrix Laminated Composite Beams" Mathematical and Computational Applications 9, no. 1: 49-64. https://doi.org/10.3390/mca9010049