In this work, full stress tensor components regarding stress state for a simmetrical composite laminate under uniform uniaxial extension have been determined. Off-plane stresses are specially meaningful due to the fact that they are responsible for failure mechanisms such as delamination and shear stress cracking. A finite difference scheme has been used to solve internal equilibrium equations subjected to stress-free boundary conditions along boundary lines; moreover symmetry considerations have been made. In such way, we get an improvement in solutions in contrast with results obtained following bidimensional reasoning and using laminate based elements. Off-plane stresses for differents ply-sequences have been evaluated and maximum and minimum values for different fibers orientations were explored.

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Published on 14/10/18
Accepted on 14/10/18
Submitted on 14/10/18

Volume 02 - Comunicaciones Matcomp17 (2018), Issue Núm. 4 - Comportamiento en servicio de los materiales compuestos (2), 2018
DOI: 10.23967/r.matcomp.2018.10.003
Licence: Other

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