Finite element simulation of mechanical properties of <i>Rosa roxburghii</i> under compression loading

Lang, Yancheng; Xie, Zhiping; Chen, Luqi

doi:10.1111/jfpe.13939

Cited by 14 publications

(10 citation statements)

References 46 publications

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“…Mechanical properties of control and treated samples were obtained during the storage time. Young's modulus is an index of the resistance of elastic–plastic and visco‐elastic material to impact and deformation (Lang et al, 2022). During the storage time of controlled samples, Young's modulus declined sharply from 2.85 to 0.32 MPa (Figure 4a).…”

Section: Resultsmentioning

confidence: 99%

“…Then, the intact samples were transferred to the material laboratory for measurement of physical and mechanical properties, plasma treatment, drop test and SEM analysis. To achieve an equal temperature, the samples were kept in the refrigerator at 8°C for 24 h (Lang et al, 2022). The short‐term storage condition (20 days) was considered for all of the samples (treated and control).…”

Section: Methodsmentioning

confidence: 99%

“…Each drop test was solved for 10 ms and 200 sub‐steps. In addition, the meshing process was performed by converge method (Celik, 2017; Lang et al, 2022). In this method, the seed size decreased and the sensitivity analysis of mesh size was observed.…”

Section: Methodsmentioning

confidence: 99%

“…To achieve an equal temperature, the samples were kept in the refrigerator at 8 C for 24 h (Lang et al, 2022). The short-term storage condition (20 days) was considered for all of the samples (treated and control).…”

Section: Preparation Samplesmentioning

confidence: 99%

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Effect of dielectric barrier discharge cold plasma on the bruise susceptibility of plum fruit

Rashvand

Hajizadeh

Akbarnia

et al. 2022

J Food Process Engineering

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Tissue firmness is one of the most important factors in consuming fresh fruits. The firmness of the plum is the main parameter to purchase. This study aimed to investigate the effect of the dielectric barrier discharge (DBD) cold plasma method on the mechanical properties of plums during storage time. For this purpose, a tesla system and cold plasma generation by DBD were used. Plums were treated by plasma three times for 5, 10 and 15 min and then evaluated in five periods 1st, 5th, 10th, 15th and 20th days. Also, the simulation method was used to measure the plums' bruise volume (BV) and bruise susceptibility (BS). The simulated and experimental BV and BS values were compared, and the maximum relative difference were 13.12% and 10.18%, respectively. In addition, scanning electron microscopy (SEM) was utilized to investigate the microstructure of the tissue before and after the drop test. The results revealed that the DBD treatment of 5 and 15 min had a negative effect on the mechanical properties of the plums. While the DBD treatment of 10 had an acceptable impact on the trend of Young's modulus, bio yield stress, and tangent modulus during the storage time. This treatment enhances the resistance of the plums to deformation and reduces the BV and BS tendency caused by impact. Practical ApplicationsMechanical damage of fresh fruits in the postharvest process by processing plants reduces the quality of the product in terms of firmness. Therefore, customers are reluctant to buy products with unacceptable rigidity. Plum is one of the expensive fruits that is always influenced by mechanical damage in the procedure of processing such as sorting. Therefore, it seems necessary to provide a solution that maintains firmness and does not affect the chemical quality of the product. DBD cold plasma is an economical, fast and reliable method to maintain the firmness of fresh fruits.Although DBD cold plasma can preserve the mechanical properties of the fruits by disinfection, treatment time can have both positive and negative effects. In other words, the over-treatment time sometimes causes fruit tissue to loosen or lowtreatment time has been no significant difference. Therefore, it seems research on the effect of treatment time is essential. The results of this study can be useful for horticultural processing plants to increase fruit quality in terms of firmness.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Preparation Samplesmentioning

confidence: 99%

See 2 more Smart Citations

Effect of dielectric barrier discharge cold plasma on the bruise susceptibility of plum fruit

Rashvand

Hajizadeh

Akbarnia

et al. 2022

J Food Process Engineering

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“…Therefore, the Tet4 curvature based was considered for olive fruit samples. For determination of the appropriate size the convergence technique was used (Lang et al, 2022). In this study, the equivalent stress was considered as the converge parameter (Figure 2a).…”

Section: Methodsmentioning

confidence: 99%

Potential of finite element method to optimize the olive harvester machine (hand‐held rotary harvester)

Rashvand

Altieri

Genovese

et al. 2022

J Food Process Engineering

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The mechanical damage of olive caused by harvesting machines is one of the main reasons for the quality reduction of produced olive oil. The hand-held rotary harvester (RH) is a machine that is used in small orchards extensively. The present paper focuses on utilizing the finite element method (FEM) to define the percentage of bruising damage by RH with two different materials of the head component (Ethylene Propylene Rubber and Neoprene). Three cultivars, ripening stage, and rotational speeds of RH head components were considered for experimental and simulation methods. The controlled impactor device was developed to validate the simulation process. The simulation and experimental results showed the Ethylene Propylene Rubber head produced less stress and bruise volume than the Neoprene head. Moreover, the quality characteristics of extracted olive oil, including free fatty acid, peroxide value, K232 and K270 coefficients, total chlorophyll, total carotenoid, total phenol, and total flavonoid were measured. Finally, the correlation of quality characteristics of olive oil, measured bruise volume and simulated was investigated using linear model and principal components analysis. Practical applicationsDespite the advancement of horticulture industries, the demand for optimization of agricultural machinery to decrease mechanical damage during the harvest process exists. The hand-held olive harvester causes the bruise phenomenon reduction, leading to decrease quality of extracted olive oil. In this research, the time-dependent finite element method based on dynamic-explicit was utilized to simulate the harvest process. The results show that using the numerical and statistical methods, the producer factories of olive harvester machines can optimize the devices to enhance the quality of harvested olive and extracted olive oil.

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Macroscopic and microscopic investigations of determining elasto‐mechanical properties of limequat fruit

Vatani,

Abbaspour‐Fard,

Khodabakhshian

2024

Microscopy Res & Technique

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Given the paramount importance of agricultural products in global health and food security, and the increasing consumer demand, understanding the mechanical behavior of these materials under various conditions is necessary yet challenging. Due to their heterogeneous and non‐uniform nature, determining their mechanical behavior is complex. This study employs atomic force microscopy (AFM) to determine the modulus of elasticity of limequat fruit at the microscopic scale and compares it with macroscopic methods. The analyses revealed a statistically significant difference (at the 1% level) in the mechanical behavior determined at the macroscopic scale. The highest modulus of elasticity, 0.752 MPa, was observed using Hertz's theory under complete placement between two parallel planes. The lowest, 0.059 MPa, was noted when a spherical probe compressed a rectangular sample. The average modulus of elasticity of the limequat peel was 2.007 MPa. At the microscopic scale, the modulus of elasticity of the fruit tissue ranged from 0.370 to 0.365 MPa, and for the peel, it was 0.246 MPa.Research Highlights Working principles of this innovative technique were elaborated. The AFM technique used provide elasto‐mechanical properties determination of cell walls of single living cells extracted from biological materials on the nanoscale. By combining AFM topographical image and nano‐indentation of living fruit cells it will be possible to investigate cells' elasto‐mechanical properties. Atomic force microscopy holds great potential for monitoring fruit mechanical properties of biological materials.

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Finite element simulation of mechanical properties of Rosa roxburghii under compression loading

Cited by 14 publications

References 46 publications

Effect of dielectric barrier discharge cold plasma on the bruise susceptibility of plum fruit

Effect of dielectric barrier discharge cold plasma on the bruise susceptibility of plum fruit

Potential of finite element method to optimize the olive harvester machine (hand‐held rotary harvester)

Macroscopic and microscopic investigations of determining elasto‐mechanical properties of limequat fruit

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