Analysis of a new composite material for watercraft manufacturing

Wahrhaftig, Alexandre de Macêdo; Ribeiro, Henrique José Caribé; Nascimento, Ademar Nogueira do; Filho, Milton

doi:10.1007/s11804-016-1364-8

Cited by 4 publications

(5 citation statements)

References 23 publications

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“…The loading is classified as node indentation Type NIA only if the geometric parameters of a panel satisfy equation (5). In practice, however, this is unlikely to be the case and its consequence will be considered later.…”

Section: Failure Modes For Cylindrical Indentermentioning

confidence: 99%

“…Therefore, there are certain regions in the deformation map of Figure 10 that do not meet the criterion of Type NIA loading classification. Only selected geometric combinations of h c /l and t f /lexamples of these are highlighted as horizontal red dash lines in Figure 11(a), meet the geometric relation in equation (5). By contrast, the other h c /l and t f /l combinations correspond to a different loading classification to be introduced later.…”

Section: Failure Modes For Cylindrical Indentermentioning

confidence: 99%

“…Sandwich panel, made of a low-density core and two thin skins, is widely employed in applications that require a combination of high structural rigidity and lightweight, such as in aerospace, watercraft and rail. [1][2][3][4][5][6] Compared to its monolithic counterpart, a sandwich construction offers superior specific stiffness and strength to weight ratio. Corrugated sandwich panels, consisting of a triangular, 7 trapezoidal, 8 or curvilinear 9 core, are often preferred in many applications since they are straightforward to manufacture, typically through a welding route, and are particularly amenable to production scale-up.…”

Section: Introductionmentioning

confidence: 99%

“…In (a), solid black lines are regime boundaries predicted in 1. Solid red lines represent combination of panel dimensions that satisfy equation(5). In (b), solid white lines are predictions by equations (2)-(4), and (9).…”

mentioning

confidence: 99%

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Failure mechanisms of corrugated sandwich panels under transverse three-point bending

Xia

Tan

Ruan

2022

Jnl of Sandwich Structures & Materials

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The failure mechanism of corrugated sandwich panels under three-point bending is investigated experimentally and numerically using ABAQUS/Standard. Three dominant modes of failure, viz. face buckling, face yielding and core buckling, previously reported by others, were also identified here and they were found to be affected by the face-sheet thickness, core height and the corrugation angle of the panel. It will be shown that the deformation map, and regime boundaries, theoretically predicted previously by Valdevit et al. are valid only for restricted cases when the indenter and support pins are simultaneously located at a vertex; their prediction breaks down if this condition is not met and alternative failure maps will be developed here. The indenter nose shape (flat and cylindrical), size of the indenter and the location of indentation – these were not previously investigated by others – will be shown to play a significant role on the mode of failure that a panel subsequently develops.

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Section: Failure Modes For Cylindrical Indentermentioning

confidence: 99%

Section: Failure Modes For Cylindrical Indentermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Failure mechanisms of corrugated sandwich panels under transverse three-point bending

Xia

Tan

Ruan

2022

Jnl of Sandwich Structures & Materials

View full text Add to dashboard Cite

show abstract

“…Sandwich panels consisting of a low-density core and thin skins (upper and lower) are widely used in applications that require a combination of high structural rigidity and lightweight, such as in aerospace, ships, and railway industry [1][2][3][4]. A sandwich panel construction offers higher specific stiffness and strength to weight ratio compared to its monolithic counterpart.…”

Section: Introductionmentioning

confidence: 99%