Determination of bruise susceptibility of pears (Ankara variety) to impact load by means of FEM-based explicit dynamics simulation

Çelik, H. Kürşat

doi:10.1016/j.postharvbio.2017.01.015

Cited by 87 publications

(73 citation statements)

References 41 publications

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“…The results of this study were consistent with the research on apples and pears. [6,9] a b c d e f Figure 7. Stress distribution plots in orange sample after impact for the predefined dropping height (a) step 1, (b) step 7, (c) step 10, (d) step 13, (e) step 17, and (f) step 20, simulated by SolidWorks Software.…”

Section: Equivalent Steres (Kpa) Contact Force (N)mentioning

confidence: 99%

“…[6] There are many researches, which have investigated the level of damage, stress distribution, and reaction of the fruits under the external forces using FEM. [7][8][9] For example, deformation behavior of the tomato fruit was investigated upon crashing. [10] In this study, at the first, a 3D model of tomato was generated in CATIA software and then in order to find mechanical properties of tomato in compression tests, simulated using FEM.…”

Section: Introductionmentioning

confidence: 99%

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Free fall analysis of orange fruit using numerical and experimental methods

Gharaghani

Maghsoudi

2018

International Journal of Food Properties

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In this research, the behavior of orange fruit under impact cases was investigated by finite-element modeling in SolidWorks simulation and experimental dropping tests. The values of 0.584 MPa and 0.24 were experimentally determined for modulus of elasticity and Poisson's ratio as a pre-requirement for simulation. In the simulation tests, orange fruits were dropped from two different heights of 2 and 3 m with a drop angle of 45°r elatives to a rigid plane. Experimental tests were also conducted to validate simulation results. Maximum equivalent stress and contact force were obtained from simulation results 0.5826 MPa and 14.95 N, respectively.

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Section: Equivalent Steres (Kpa) Contact Force (N)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Free fall analysis of orange fruit using numerical and experimental methods

Gharaghani

Maghsoudi

2018

International Journal of Food Properties

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“…Sometimes the compressive load itself is applied on precisely prepared samples that were cut from the fruit tissue. For instance, McLaughlin and Pitt [13] and Celik [14] used cylindrical specimens from inside apples and pears. Fenyvesi pointed out that the apple must be characterized as a structure (with skin, cortex, and core), and not as homogenous material [15].…”

Section: Introductionmentioning

confidence: 99%

Identification and Frequency Dependence of Viscoelastic Parameters during Dynamic Creep Tests on Selected Pome Fruits

2019

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In this paper, a novel control-loop concept is presented to investigate the viscoelastic properties of different pome fruits. Repeated mechanical effects are one of the most important risk factors during the postharvest procedures, so our work aimed to expand knowledge in the field. The actual investigations involved Golden Delicious apples and Packham pears. The developed model is based on the Poynting–Thomson body and, during the validating dynamic creep tests, different repeated compressive loads were applied. The examined frequencies were chosen from the most common components of the frequency distribution during the transportation process; the given range is responsible for the highest volume of fruit damage and the most extensive losses. The identified mathematical system determines the viscoelastic model parameters with the best fit to the measured creep data. The model properties of the tested fruit textures are compared in six different frequency setups, with the inspected pome species showing different elastic and viscous responses for the adjusted load conditions. The custom testing device with variable load functions and the proposed solution allow system identification with a wide range of setup possibilities. The resulted viscoelastic parameters can be used for further failure analysis and for the comparison of different pome fruit materials.

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“…Several studies have been published on this subject, attempting to characterize the mechanical behaviour of different fruit varieties, both by experimental means and by computational simulations [2][3][4][5][6][7][8]. Numerical simulation is one of the most powerful techniques, however, in order to obtain reliable results a realistic model should be used.…”

Section: Introductionmentioning

confidence: 99%

A Computer Tool for 3D Shape Recovery of Fruits

Gaspar

Pascoal‐Faria

Amado

et al. 2019

AMM

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Characterizing a fruit's mechanical behavior is an important step towards reducing economic losses due to bruising. Several 3D scanning technologies allow to obtain the external geometry of a fruit, but no easily accessible tools exist for the acquisition of the geometry of internal structures such as the core. We propose a low-cost destructive method for tomographic reconstruction of a fruit from scanned slices. A method for overcoming the difficulties in registering the different images is also presented.

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Determination of bruise susceptibility of pears (Ankara variety) to impact load by means of FEM-based explicit dynamics simulation

Cited by 87 publications

References 41 publications

Free fall analysis of orange fruit using numerical and experimental methods

Free fall analysis of orange fruit using numerical and experimental methods

Identification and Frequency Dependence of Viscoelastic Parameters during Dynamic Creep Tests on Selected Pome Fruits

A Computer Tool for 3D Shape Recovery of Fruits

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