Investigation of mechanical property for paper honeycomb sandwich composite under different temperature and relative humidity

Wang, Dongmei; Wang, Jun; Liao, Qianghua

doi:10.1177/0731684413475912

Cited by 10 publications

(7 citation statements)

References 7 publications

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“…As increasing temperature will reduce the moisture content of paperboard as high temperature can cause the water evaporation of fibre and reduces the moisture content. Wang et al [26] also found the moisture content of paper honeycomb sandwich panel decreased as the rise in temperature for the same relative humidity. Figure 4 compared the compressive strength of 'Supervent and Standard' packages exposed to different storage conditions for 48 hours.…”

Section: Comparison Of Package Designmentioning

confidence: 89%

Experimental investigation of compression strength of ventilated corrugated citrus packaging

Pathare¹,

Berry²,

Opara³

2017

Packaging Research

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Ventilated corrugated paperboard packaging is the most widely type of packaging used in postharvest handling and transportation of fresh horticultural produce, during which the package may be exposed to different environmental conditions. Ventilated packages should be designed in such a way that they can provide uniform airflow distribution without compromising mechanical integrity. This study investigated the effects of different storage conditions (−0.5 ∘ C at 90% RH; 4 ∘ C at 90% RH, 10 ∘ C at 90% RH) on the mechanical performance of two types of ventilated packaging ['Supervent' (4.7% vent area) and 'Standard' (3.1% vent area)] used for handling citrus fruit. The effects of storage condition on moisture content of package was also studied. Standard packaging showed higher compression strength than supervent packaging, presumably due to less vent area on the package. Maximum compressive strength reduction was found at storage temperature 4 ∘ C for both packages. The compressive strength of both packages decreased with increase in moisture content.

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Section: Comparison Of Package Designmentioning

confidence: 89%

Experimental investigation of compression strength of ventilated corrugated citrus packaging

Pathare¹,

Berry²,

Opara³

2017

Packaging Research

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“…The influence of temperature and relative humidity on moisture content and cushioning property of paper honeycomb sandwich panel was studied by reference [18,19]. Then a model of moisture content and the prediction equations of critical and plateau stress of paper honeycomb sandwich panel are obtained and verified [6].…”

Section: The Evaluation Of Plateau Stress and Critical Stress Based Omentioning

confidence: 99%

3D Energy Absorption Diagram Construction of Paper Honeycomb Sandwich Panel

Wang

Bai

Liao

2018

Shock and Vibration

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Paper honeycomb sandwich panel is an environment-sensitive material. Its cushioning property is closely related to its structural factors, the temperature and humidity, random shocks, and vibration events in the logistics environment. In order to visually characterize the cushioning property of paper honeycomb sandwich panel in different logistics conditions, the energy absorption equation of per unit volume of paper honeycomb sandwich panel was constructed by piecewise function. The three-dimensional (3D) energy absorption diagram of paper honeycomb sandwich panel was constructed by connecting the inflexion of energy absorption curve. It takes into account the temperature, humidity, strain rate, and characteristics of the honeycomb structure. On the one hand, this diagram breaks through the limitation of the static compression curve of paper honeycomb sandwich panel, which depends on the test specimen and is applicable only to the standard condition. On the other hand, it breaks through the limitation of the conventional 2D energy absorption diagram which has less information. Elastic modulus was used to normalize the plateau stress and energy absorption per unit volume. This makes the 3D energy absorption diagram universal for different material sandwich panels. It provides a new theoretical basis for packaging optimized design.

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“…The liquid absorption rate of the honeycomb core is higher than the facesheet laminate because the core has a lower density than the facesheets [9]. Paper honeycomb core in particular is very sensitive to temperature and humidity [20]. It changes its mechanical properties dramatically when the environment changes.…”

Section: Introductionmentioning

confidence: 99%

“…It changes its mechanical properties dramatically when the environment changes. Although it cannot achieve its design capability in changing environmental conditions, not many of them account for moisture ingression during the design phase [19], [20].…”

Section: Introductionmentioning

confidence: 99%

“…Yeo et al [14] showed the degradation of flatwise tension strength and compression after impact strength of Nomex V R honeycomb sandwich test specimen in hot/wet condition. Wang et al [20] reported that a higher moisture content decreases the critical stress and plateau stress of the honeycomb during compressive test with paper honeycomb. Semple et al [4] showed that paper honeycomb losses its flexural stiffness, shear strength, and compressive strength significantly in high humidity (95% RH) compared to normal humidity (65% RH).…”

Section: Introductionmentioning

confidence: 99%

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Investigating the effects aviation fluids have on the flatwise compressive strength of Nomex® honeycomb core material

Kım¹,

Sterkenburg²

2019

Jnl of Sandwich Structures & Materials

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One of the disadvantages of honeycomb sandwich structure is that they are prone to fluid intrusion. The purpose of this study is to determine if the structural properties of honeycomb core are affected by contact with a fluid. The test specimens were manufactured of fiberglass prepreg for the facesheets and Nomex ® honeycomb core for the core material in accordance with ASTM C-365/365M. Test specimens were soaked in several different kinds of fluids, such as aircraft fuel, turbine engine oil, hydraulic fluid, and water for a period of 60 days. A flatwise compressive test was performed, and the test results were analyzed to determine how the contact with aircraft fluids affected the compressive strength of the Nomex ® honeycomb core and how the strength was recovered when the specimens were dry. In addition, the investigation of de-bonding between facesheet and core material after soaking were performed to support the study.

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Investigation of mechanical property for paper honeycomb sandwich composite under different temperature and relative humidity

Cited by 10 publications

References 7 publications

Experimental investigation of compression strength of ventilated corrugated citrus packaging

Experimental investigation of compression strength of ventilated corrugated citrus packaging

3D Energy Absorption Diagram Construction of Paper Honeycomb Sandwich Panel

Investigating the effects aviation fluids have on the flatwise compressive strength of Nomex® honeycomb core material

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