Use of enriched shell elements compared to solid elements for modelling delamination growth during impact on composites

McElroy, Mark W.; André, Alann; Goode, Tyler; Costa, Sérgio; Olsson, Robin; Pankow, Mark

doi:10.1016/j.compstruct.2021.113945

Cited by 5 publications

(2 citation statements)

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“…There are several studies that investigated the various modeling approaches for this impact behavior prediction in composite structures. One of the important concerns regarding the research conducted in this field is selecting the appropriate element types to create an accurate numerical model in impact delamination prediction [41][42][43][44][45][46][47].…”

Section: Introductionmentioning

confidence: 99%

“…According to their investigation, enriched shell elements are incapable of providing accurate results in delamination modeling compared to solid elements. However, enriched shell elements can be applicable in general damage predictions with lower computational costs [41]. Tawk et al implemented solid hexahedron elements to model delamination damage in composite laminates.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Investigation on the Capability of Modeling Approaches for Composite Cylinders under Low-Velocity Impact Loading

Rezaei Akbarieh,

Ma,

Sbarufatti

et al. 2024

J. Compos. Sci.

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Composite pressure vessels can be exposed to extreme loadings, for instance, impact loading, during manufacturing, maintenance, or their service lifetime. These kinds of loadings may provoke both visible and invisible levels of damage, e.g., fiber breakage matrix cracks and delamination and eventually may lead to catastrophic failures. Thus, the quantification and evaluation of such damages are of great importance. Considering the cost of relevant full-scale experiments, a numerical model can be a powerful tool for such a kind of study. This paper aims to provide a numerical study to investigate the capability of different modeling methods to predict delamination in composite vessels. In this study, various numerical modeling aspects, such as element types (solid and shell elements) and material parameters (such as interface properties), were considered to investigate delamination in a composite pressure vessel under low-velocity impact loading. Specifically, solid elements were used to model each layer of the composite pressure vessel, while, in another model, shell elements with composite layup were considered. Compared with the available experimental data from low-velocity impact tests described in the literature, the capability of these two models to predict both mechanical responses and failure phenomena is shown.

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