Local Compression Fatigue of Peripherally Clamped Honeycomb Sandwich Panel

Kobayashi, Yukiyoshi; Ohtsuka, Toshihisa; Tujita, Masato; Abe, Yuji; Kishimoto, Yoshinao

doi:10.1299/kikaia.77.415

Cited by 6 publications

(6 citation statements)

References 4 publications

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“…The results obtained from previous studies are as follows (Kobayashi et al, 2011(Kobayashi et al, , 2012. Three fracture patterns were confirmed.…”

Section: Introductionsupporting

confidence: 60%

“…As reported in a past study, the fracture patterns were classified into three types (Kobayashi et al, 2011(Kobayashi et al, , 2012. The picture in Figure 5 Core Periphery of the dent classified into three types (Kobayashi et al, 2011(Kobayashi et al, , 2012. The picture in Figure 5 (c) was excerpted from the abovementioned study (Kobayashi et al, 2012), because no shearing fractures was observed from RSP within this test condition.…”

Section: Fig4 Relationships Between Residual Displacement and The Numentioning

confidence: 54%

“…Figure 5 shows photographs of the specimen after the test. As reported in a past study, the fracture patterns were classified into three types (Kobayashi et al, 2011(Kobayashi et al, , 2012. The picture in Figure 5 Core Periphery of the dent classified into three types (Kobayashi et al, 2011(Kobayashi et al, , 2012.…”

Section: Fig4 Relationships Between Residual Displacement and The Numentioning

confidence: 58%

“…Figure 7 shows the fatigue life distribution considered the stress of crack initiation site. This figure also shows the fatigue test results under the tensile stress and shearing stress for the A1100 flat plate, which is excerpted from a previous study (Kobayashi et al, 2011). Where, the shearing stress was calculated by τ max = σ max /2.…”

Section: Analysis Of Stress At the Crack Initiation Sitementioning

confidence: 97%

“…Based on obtained results, floor panel design guidelines have been proposed. In this fatigue test, the peripheral section of the HSP was fixed and local compression loads were repeatedly applied to the center (Tsujita et al, 2009, Kobayashi et al, 2011, 2012. The method of clamping the test specimen and the shape of the indenter was determined by referencing a drop weight test that simulated collisions with a flying object, because the formation of the dent was evaluated by using this test method (Watanabe et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

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Local compression fatigue property of roll core sandwich panel

Kobayashi

Kishimoto

Ohtsuka

et al. 2015

Mechanical Engineering Journal

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When the honeycomb core sandwich panel (hereafter, HSP for brevity) is used as a floor panel, a dent is formed on the surface of it. If the depth of dent was deeper, it is changed into a new one. In order to change it efficiently, it is necessary to study a period for use as the floor panel applied the repetition of local compression load for the longitudinal direction of honeycomb core (hereafter, fatigue life for brevity). The local compression fatigue tests of peripherally clamped HSPs were carried out. In this study, it is attempted to clarify the local compression fatigue property of roll core sandwich panel which was superior to the honeycomb core sandwich panel in the manufacturing cost and the mechanical property. From the obtained results, the follows were summarized; 1) There were three fracture patterns such as a tensile and a shearing types that fractured on the border of the indenter contact region and the noncontact region of specimen and a shearing around dent type that fractured on the periphery of a dent formed during the indentation. 2) The stress state at a crack initiation site governed a fatigue life. 3) Not a core shape but a cell size influenced the fatigue life.

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“…The results obtained from previous studies are as follows (Kobayashi et al, 2011(Kobayashi et al, , 2012. Three fracture patterns were confirmed.…”

Section: Introductionsupporting

confidence: 60%

Section: Fig4 Relationships Between Residual Displacement and The Numentioning

confidence: 54%

Section: Fig4 Relationships Between Residual Displacement and The Numentioning

confidence: 58%

Section: Analysis Of Stress At the Crack Initiation Sitementioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Local compression fatigue property of roll core sandwich panel

Kobayashi

Kishimoto

Ohtsuka

et al. 2015

Mechanical Engineering Journal

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Modelling and characterization of mechanical properties of optimized honeycomb structure

Zhang

Liu

et al. 2019

Int J Mech Mater Des

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Measurements of PvT Properties, Vapor Pressures, Saturated Densities, and Critical Parameters for trans-1,1,1,4,4,4-Hexafluoro-2-butene (R1336mzz(E))

2020

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Measurements of PvT properties, vapor pressures, saturated densities, and critical parameters were carried out for trans-1,1,1,4,4,4-hexafluoro-2-butene (R1336mzz(E); CF3CHCHCF3). Thirty-nine PvT property data in the single phase region along seven isochores for R1336mzz(E) were obtained in the temperatures between 333 and 410 K, pressures up to 5681 kPa, and densities between 52 and 1216 kg·m–3 by the isochoric method. Twenty-six vapor pressure data for R1336mzz(E) were obtained in the temperatures between 287 K and the critical temperature and at pressures up to the critical pressure. Twenty-one saturated density data for R1336mzz(E) were obtained by the observation of meniscus disappearance near the critical point and by the break point of isochores between 52 and 1216 kg·m–3 and the vapor-pressure curve. On the basis of these measurements, the critical parameters for R1336mzz(E) were determined as T c = 403.53 ± 0.01 K, ρc = 513 ± 3 kg·m–3, and P c = 2779.2 ± 2.0 kPa. The vapor–pressure correlation is also discussed.

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Local Compression Fatigue of Peripherally Clamped Honeycomb Sandwich Panel

Cited by 6 publications

References 4 publications

Local compression fatigue property of roll core sandwich panel

Local compression fatigue property of roll core sandwich panel

Modelling and characterization of mechanical properties of optimized honeycomb structure

Measurements of PvT Properties, Vapor Pressures, Saturated Densities, and Critical Parameters for trans-1,1,1,4,4,4-Hexafluoro-2-butene (R1336mzz(E))

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