التفاصيل البيبلوغرافية
| العنوان: |
In search of the quasi-isotropic laminate with optimal delamination resistance under off-axis loads. |
| المؤلفون: |
Guillamet, G1,2 (AUTHOR) gerard.guillamet@bsc.es, Costa, J2 (AUTHOR), Turon, A2 (AUTHOR), Mayugo, JA2 (AUTHOR) |
| المصدر: |
Journal of Reinforced Plastics & Composites. Apr2024, Vol. 43 Issue 7/8, p440-455. 16p. |
| مصطلحات موضوعية: |
*FAILURE mode & effects analysis, *DELAMINATION of composite materials, *LAMINATED materials, *FINITE element method |
| مستخلص: |
Delamination is one of the most feared failure modes in laminated composites and yet there is a lack of well established procedures to find the ply configuration with the highest delamination resistance for a given geometry of the component and a set of elastic and strength constraints. This paper presents a methodology for determining the quasi-isotropic ply sequence more resistant to delamination under off-axis uniaxial tension. Delamination is considered to be triggered by interlaminar stresses at free-edges or by matrix cracks. Two different ply thicknesses (standard and thin) and two sets of ply orientations (multiples of π /4 or π /8) are considered. The results show that the use of thin plies enlarges the design domain by up to 70% and generates a practically isotropic safe space. The methodology presented is also suitable for optimizing the delamination resistance of other load cases with stress singularities. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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