Study on Mechanical Properties for Shearing Breakage of Oat Kernel

2017 ◽  
Vol 14 (2) ◽  
Author(s):  
Nan Zhao ◽  
Nan Fu ◽  
Dong Li ◽  
Li-jun Wang ◽  
Xiao Dong Chen
Keyword(s):  
Mechanical Properties ◽  
Moisture Content ◽  
Loading Rate ◽  
Ventral Side ◽  
Dorsal Side ◽  
Breaking Force ◽  
Distance Curve ◽  
Randomized Design ◽  
Breaking Energy ◽  
Content Range

AbstractBreaking force, deformation, breaking energy, strength, hardness and rigidity of oat kernel under different loading rates (0.02, 0.04, 0.06, 0.08 and 0.10 mm/s) and loading position (ventral and dorsal sides) were determined within a moisture content range of 15.7 %–27.5 % (w.b.) by using a texture analyzer (TA) to investigate mechanical properties for shearing breakage of oat kernel. Complete randomized design was experimented to construct the force–distance curve. In this study, these mechanical properties of oat kernel were expressed as a function of moisture content and loading rate respectively. The result showed that breaking force, energy, strength, hardness and rigidity decreased linearly with the increasing moisture content and increased firstly and decreased then with the increasing loading rate. Deformation had an increasing trend with the increase in moisture content and loading rate. The highest values of breaking force, breaking energy, strength, hardness and rigidity were obtained at 0.08 mm/s loading rate. Moreover the dorsal side of oat kernel had a better shearing capacity compared with ventral side, which reflected in that breaking force, strength and hardness were great significantly at 95 % confident level when dorsal side was loaded.

Measurement of Physical and Mechanical Properties of Russian Olive (Elaeagnus Angustifolia L.) Fruit

2016 ◽  
Vol 12 (1) ◽  
pp. 91-100 ◽  
Author(s):  
Mohammad Hossein Nadian ◽  
Mohammad Hossein Abbaspour-fard
Keyword(s):  
Mechanical Properties ◽  
Moisture Content ◽  
Loading Rate ◽  
Geometric Mean ◽  
Testing Machine ◽  
Physical And Mechanical Properties ◽  
Angle Of Repose ◽  
Shear Mode ◽  
Russian Olive ◽  
Double Shear

Abstract The effect of moisture content on some properties of two varieties (Meymeh and Maragheh) of Russian olives was studied. The physical and mechanical properties including: dimensions, geometric mean diameter, thousand mass, volume, sphericity, surface area, true and bulk densities, porosity, angle of repose, coefficient of friction, rupture force, and rupture energy. The changes of moisture content levels from 17% to 25% (w.b.) indicated a statistically significant effect on all studied physical properties, except bulk density for Russian olive fruits. Shearing force was applied to the fruit using a testing machine in double shear mode. Shear strength and shearing energy increased with increase of loading rate; however, they were higher in Meymeh variety than Maragheh variety. Therefore, the lowest loading rate, with up to about 10 mm/min is desirable to design a suitable pulverizing mill in the herbal medicine industries.

scholarly journals SIFAT FISIK DAN MEKANIS PAPAN SAMBUNG DARI KAYU MANIS (Cinnamomum burmanii) DAN KAYU DURIAN (Durio zibethinus) DENGAN MENGGUNAKAN PEREKAT PV Ac

2017 ◽  
Vol 4 (1) ◽  
pp. 54
Author(s):  
Noor Mirad Sari ◽  
Trisnu Satriadi ◽  
Muhammad Safi’i
Keyword(s):  
Mechanical Properties ◽  
Moisture Content ◽  
Physical Properties ◽  
Vinyl Acetate ◽  
Economic Value ◽  
Finger Joint ◽  
Durio Zibethinus ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
A Current

This research aims to utilize cinnamon (Cinnamomum burmanii) and wood durian (Durio zibethinus) which is an unused wood or waste, a product that has economic value. The purpose of this study was to determine the physical properties (moisture content, density) and mechanical (MoE, MoR , and the efficiency of the connection) continued boards cinnamon (Cinnamomum burmanii) and wood durian (Durio zibethinus). Connecting board manufacturing is done with menjari method (finger joint), as well as testing done of testing physical properties (moisture content, density)on the mechanical properties of wood intact and (MoE, MoR, the efficiency of the connection) to connect the board. Board continued to use Poly vinyl acetate (PVAC) as adhesive. This study uses a completely randomized design (CRD) with 2 types of wood, 3 treatments and 3 repetitions. Results of this indicate that the use of a waste can produce a quality produst and has economic value.  The results of all these studies show that connecting boards made from cinnamom cinnamom + MM has elasticity (MoE) is high but less well on the test and also the level of efficiency MoR connection. While on board grafting wood + wood durian durian (DD) has a current MoE and MoR efficiency is low but good connection. Boards cinnamon +connection durian wood (MD) has an elasticity (MoE) is low but has a high MoR and efficiency is very good connection. From the results obtained that the board continued the MD who has good quality MM and DD. Further research based on other types, concentrations and types of adhesive connection method.Penelitian ini bertujuan untuk dapat memanfaatkan kayu manis (Cinnamomum burmanii) dan kayu durian (Durio zibethinus) yang merupakan kayu yang tidak terpakai atau limbah, menjadi produk yang memiliki nilai ekonomis. Tujuan dari penelitian ini adalah mengetahui sifat fisis (kaar air, berat jenis) dan mekanis (MoE, MoR, dan efisiensi sambungan) papan sambung kayu manis dan kayu durian. Pembuatan papan sambung dilakukan dengan metode menjari (finger joint), serta pengujian yang dilakukan yaitu pengujian sifat fisis (kadar air, berat jenis) pada kayu utuh dan sifat mekanis (MoE, MoR, efisiensi sambungan) pada papan sambung. Papan sambung dengan menggunakan Poly vinyl acetate (PVAc) sebagai perekatnya. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan 2 jenis kayu, 3 perlakuan dan 3 pengulangan. Hasil penelitian ini menunjukkan bahwa pemanfaatan suatu limbah bisa menghasilkan suatu produk yang berkualitas dan memiliki nilai ekonomis. Hasil dari semua penelitian ini menunjukkan papan sambung yang terbuat dari kayu manis + kayu manis MM memiliki elastisitas (MoE) yang tinggi tapi kurang baik pada uji MoR dan juga tingkat efisiensi sambungannya. Sedangkan pada papan sambung kayu durian + kayu durian (DD) memiliki MoE yang sedang dan MoR yang rendah tapi efisiensi sambungan baik. Papan sambung kayu manis + kayu durian (MD) memiliki elastisitas (MoE) yang rendah tapi memiliki MoR yang tinggi serta efisiensi sambungan sangat baik. Dari hasil yang diperoleh bahwa papan sambung MD yang memiliki kualitas yang baik dibandingkan MM dan DD. Penelitian lebih lanjut berdasarkan dari jenis lainnya, konsentrasi jenis perekat dan metode sambungan.

scholarly journals Sifat Kayu Lapis yang Dibuat dari Lima Jenis Kayu Asal Riau

2020 ◽  
Vol 25 (4) ◽  
pp. 657-663
Author(s):  
Achmad Supriadi ◽  
Deazy Rachmi Trisatya ◽  
Ignasia Maria Sulastiningsih
Keyword(s):  
Mechanical Properties ◽  
Moisture Content ◽  
Wood Species ◽  
Bonding Strength ◽  
Urea Formaldehyde ◽  
Physical And Mechanical Properties ◽  
Modulus Of Rupture ◽  
National Standard ◽  
Randomized Design ◽  
Completely Randomized Design

The objective of this study was to determine the physical and mechanical properties of plywood made of punak (Tetramerista glabra Miq.), meranti bunga (Shorea teysmanniana Dyer ex Brandis), mempisang (Alphonsea spp.), suntai (Palaqium burckii H.J.L.), and pasak linggo (Aglaia argentea Blume). Liquid urea formaldehyde (UF) was used as an adhesive. Data analysis was carried out using a completely randomized design. Results showed that the moisture content and density of plywood produced in this study were around 10.4-10.95% and 0.65 to 0.93 g/cm3, respectively. The modulus of elasticity (MOE) and modulus of rupture (MOR) of plywood produced were between 63.371-123.548 kg/cm2 and 517-1.052 kg/cm2, respectively. It was also found that the tensile strength and bonding strength of the plywood produced were 461.6-1.095 kg/cm2 and 18.97-31.79 kg/cm2, respectively. It was recorded that moisture content and the bonding strength of the plywood produced met the Indonesian National Standard of Plywood. Among others, plywood produced from pasak linggo showed a superior quality. Referring to statistical analysis, it was confirmed that physical and mechanical properties of plywood were significantly affected by wood species, except moisture content. Keywords: mechanical properties, physical properties, plywood, Riau wood species

Physical and mechanical properties of hemp seed

2012 ◽  
Vol 26 (2) ◽  
pp. 211-215 ◽  
Author(s):  
A. Taheri-Garavand ◽  
A. Nassiri ◽  
S. Gharibzahedi
Keyword(s):  
Mechanical Properties ◽  
Moisture Content ◽  
Physical Properties ◽  
Loading Rate ◽  
Physical And Mechanical Properties ◽  
Interaction Effects ◽  
Mechanical Tests ◽  
Rupture Force ◽  
Hemp Seed ◽  
Effect Of Moisture

Physical and mechanical properties of hemp seedThe current study was conducted to investigate the effect of moisture content on the post-harvest physical and mechanical properties of hemp seed in the range of 5.39 to 27.12% d.b. Results showed that the effect of moisture content on the most physical properties of the grain was significant (P<0.05). The results of mechanical tests demonstrated that the effect of loading rate on the mechanical properties of hemp seed was not significant. However, the moisture content effect on rupture force and energy was significant (P<0.01). The lowest value of rupture force was obtained at the highest loading rate (3mm min-1)and in the moisture content of 27.12% d.b. Moreover, the interaction effects of loading rate and moisture content on the rupture force and energy of hemp seed were significant (P<0.05).

Effect of Anatomical Sites On the Mechanical Properties of Spinal Dura Subjected to Biaxial Stretching

2021 ◽  
Author(s):  
Atsutaka Tamura ◽  
Soichiro Nishikawa
Keyword(s):  
Mechanical Properties ◽  
Dura Mater ◽  
Longitudinal Direction ◽  
Ventral Side ◽  
Dorsal Side ◽  
Tensile Tester ◽  
Material Stiffness ◽  
Cerebrospinal Fluid Leaks ◽  
Physiological Motion

Abstract The spinal cord is encased by spinal meninges called the pia, arachnoid, and dura maters. Among these membranes, the dura mater is the thick and outermost layer and is the toughest and strongest. Thus, mechanical failure of the dura mater can lead to spontaneous cerebrospinal fluid leaks or hypovolemia, resulting in a complication or exacerbation of unfavorable symptoms involved in a mild traumatic brain injury. To develop protective equipment that can help prevent such injuries, accurate characterization of the spinal dura mater is required, especially regarding the mechanical properties at different anatomical sites. In this study, we used an equiload biaxial tensile tester to investigate the mechanical properties of porcine meningeal dura mater along the whole length of the spine. The resultant strain of the dorsal side was greater than that of the ventral side (P &lt; 0.01), while the circumferential direction was significantly stiffer than the longitudinal direction (P &lt; 0.01) at lower strains regardless of the spinal level. We also found that the material stiffness progressively increased from the cervical level to the thoracolumbar level at lower strains, which implies that the dura mater inherently possesses structurally preferred features or functions because the neck requires sufficient flexibility for daily activities. Further, Young's modulus was significantly less on the dorsal side than on the ventral side at higher strains (P &lt; 0.05), suggesting that the dorsal side is readily elongated by spinal flexion even within the range of physiological motion.

scholarly journals SIFAT FISIK DAN MEKANIK KAYU MENGKUDU (Morinda citrifolia L) BERDASARKAN DIAMETER DAN POSISI KETINGGIAN BATANG

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Sri Wahyuni ◽  
Fadiilah H Usman ◽  
. Nurhaida
Keyword(s):  
Mechanical Properties ◽  
Moisture Content ◽  
Water Content ◽  
Physical And Mechanical Properties ◽  
Dimensional Change ◽  
Morinda Citrifolia ◽  
British Standard ◽  
Standard Methods ◽  
Randomized Design ◽  
Completely Randomized Design

This study aims to determine the diameter and height position of noni wood that can produce the best physical and mechanical properties. The physical properties measured in this study were adjusted to their use, namely water content, density, and dimensional change using the standard British standard methods no. 373 (1999). Noni tree (Morinda citrifolia L) which is used in diameter 20 cm and 25 cm. Tree felling is carried out on branches as high as branch-free and 3 parts are taken, namely the base, middle, end where each part is 1 meter in size and the distance between parts is 1 meter. The three parts of the wood (base, middle, end) are made sticks measuring 2.5 x 2.5 x 1m. after that the stick is dried until it reaches a moisture content of 12-18%. This study used the Factorial Experiment pattern in Completely Randomized Design (CRD) with 2 treatment factors, namely a stem diameter of 25 cm, 20 cm, and height of stem (base, middle, end) so that 18 experimental combinations were obtained. The results showed that none wood (Morinda citrifolia L) was yellow ie 8/6 chroma value 2.5 Y and after being sprayed with a young cream color that is 7/4 Very Pale Brown 10 YR, until the old cream is 6/4 Light Yellowish Brown 10 YR based on Munsell 2000 with the best physical and mechanical properties is found in the diameter of 25 cm and the middle height of the stem with the value of water content 21.4690%, density 0.5500 gr / cm3, shrinkage 0.1122%, MOE 108810.37 kg / cm2, MOR 408,038.90 kg / cm2,MCS 280,00 kg/cm3 and included in the strong class category II-III.Keywords: Diameter, mechanical properties, noni, physical, the height position of a stem

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