scholarly journals Investigation of Single Fibre Tensile Properties of the Pineapple Leaf (PALF)

2021 ◽  
Vol 2129 (1) ◽  
pp. 012078
Author(s):  
Muhammad Zuhair Mohd Rizal ◽  
Ahmad Hamdan
Keyword(s):  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Tensile Properties ◽  
Testing Machine ◽  
Single Fibre ◽  
Waste Reduction ◽  
Economic Factors ◽  
Agriculture Waste ◽  
Universal Testing ◽  
Source Depletion

Abstract Recently, natural fibres composite is rigorously explored as alternative fibres due to the source depletion of petroleum. This research was focusing on pineapple leaf (PALF). The purpose of this research was to study the single fibre tensile properties of PALF. The single fibre tensile test was conducted via the universal testing machine following ASTM D3379 – 89 standards. The result shows that the Ultimate Tensile Strength (UTS) and Young’s Modulus of PALF were 141.093 MPa and 89.073 MPa, respectively. This research’s benefits include reducing agriculture waste of pineapple leaf, which is commonly being thrown out by the farmers when the fruits are harvested. It focuses not only on waste reduction but also on economic factors when other industries fully utilise the pineapple leaf.

scholarly journals Ultimate tensile strength and microhardness of glass ionomer materials

2014 ◽  
Vol 17 (1) ◽  
pp. 16 ◽  
Author(s):  
Paula Roberta Perondi ◽  
Pedro Henrique Cabral Oliveira ◽  
Alessandra Cassoni ◽  
André Figueiredo Reis ◽  
José Augusto Rodrigues
Keyword(s):  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Testing Machine ◽  
Glass Ionomer ◽  
Light Activation ◽  
Hybrid Resin ◽  
Universal Testing ◽  
Diamond Indenter ◽  
Resin Modified Glass Ionomer ◽  
One Way Anova

<p><strong>Objective:</strong> This study evaluated the ultimate tensile strength (UTS) and microhardness (µKH) of conventional (CO) and hybrid resin-modified glass ionomer (RM). <strong>Material and methods:</strong> Nine specimens to UTS and twelve for µKHN of glass ionomer materials were obtained using special molds. The materials were manipulated and CO groups were allowed to self-cure for five minutes and RM were subjected to light-activation as indicated by manufactures through a glass slide. All specimens were dark-stored in 100% relative humidity for 24h. For UTS test, specimens were tested in tension in a universal testing machine (crosshead speed of 1 mm/min) until failure. For µKHN test a Knoop diamond indenter was used to make five indentations in the upper/light irradiated surface of the specimens. UTS and µKHN data were submitted to one-way ANOVA, followed by Tukey’s test (α= 5%).  <strong>Results:</strong> The results for UTS were: Ionomaster: 7.0 (±1.6)A; Maxxion R: 8.8 (±3.7)A Vidrion R: 8.8 (±3.9)A; ChemFil Rock: 10.7 (±4.6)AB; Vitremer: 13.1 (±3.3)BC; Vitrofil R: 14.9 (±7.8)CD; Ionoseal: 14.5 (±8.2)CD; Resiglass: 16.3 (±2.3)D. The results for µKH: Ionomaster: 24.3 (±6.6)B; Maxxion R: 17.7 (±4.7)A, Vidrion R: 31.0 (±9.4) B; ChemFil Rock: 31.1 (±8.5)B; Vitremer: 20.3 (±3.3)A; Vitrofil R: 16.5 (±5.1)A; Ionoseal: 13.1 (±8.5)A; Resiglass: 21.6 (±5.2)A. <strong>Conclusion:</strong> It was observed that the hybrid resin-modified ionomers generally have higher cohesive strength than conventional ones, but lower microhardness.</p>

Design of Fixture for Measuring Tensile Properties of Walnut Shell

2012 ◽  
Vol 479-481 ◽  
pp. 1438-1441
Author(s):  
Li Liang ◽  
Yu Ming Guo
Keyword(s):  
Tensile Strength ◽  
Tensile Properties ◽  
Testing Machine ◽  
Suture Line ◽  
Walnut Shell ◽  
Universal Testing Machine ◽  
Universal Testing

Measuring the tensile strength at the suture line of walnut shell is difficult by general fixtures. In this paper, a particular fixture was designed for measuring the tensile properties of the whole walnut shell based on the Pro/E software. The rigidities of main parts were checked by theory of mechanics combined with ANSYS. The results show that all the deformations were within the permissible scope, that is to say, this design is reasonable. Besides, four adjusting levers are designed to meet the size requirements of vary walnuts whose diameter is from 28mm to 40mm. Meanwhile, it can be conveniently located on the electronic universal testing machine.

scholarly journals Effect of Stirring Speed and Stirring Time on Distribution of Nano Al2O3 Particles in Al7075 Metal Matrix Composite

2019 ◽  
Vol 8 (2) ◽  
pp. 86-89
Author(s):  
H. P. Raju ◽  
M. S. Prashanth Reddy
Keyword(s):  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Mixing Time ◽  
Testing Machine ◽  
Hardness Test ◽  
Processing Parameters ◽  
Stir Casting ◽  
Casting Method ◽  
Universal Testing ◽  
Stirring Time

Al7075 was successfully synthesized with the addition of Nano Al2O3 with 1.00Wt% by stir casting method by considering various stirring speeds and stirring times during this study. Scanning Electron Microscopy (SEM) is adapted to examine the microstructure of prepared composites. Tensile strength are tested on composite specimens (as per ASTM E8M-09) using computerized Universal Testing Machine (UTM). Micro Vicker’s hardness test was carried out on top of the polished composite specimens. The results showed the microstructure, ultimate tensile strength and hardness of the composite were influenced by the stirring speed and stirring time. From the microstructure it is revealed that, the particle clustering was more at a lower stirring speed with a lower stirring time. Increased mixing speed and mixing time resulted in better particle distribution. The results of the hardness test also demonstrated that, the composite’s hardness is affected by the stirring speed and time. At 400 rpm with a stirring time of 10 minutes, the uniform hardness levels are achieved. But the properties degraded again after an interval of certain time. Present study is conducted to determine microstructure, ultimate tensile strength, and hardness of composite and the tendency between processing parameters such as stirring speed and time.

Tensile Properties of Linear Low Density Polyethylene/Rambutan Peels (Nephelium chryseum Blum.) Flour Blends

2014 ◽  
Vol 803 ◽  
pp. 348-352
Author(s):  
A. Ainatun Nadhirah ◽  
S.T. Sam ◽  
N.Z. Noriman ◽  
C.H. Voon ◽  
S.S. Samera
Keyword(s):  
Tensile Strength ◽  
Tensile Properties ◽  
Testing Machine ◽  
Packaging Material ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Universal Testing ◽  
Flour Blends ◽  
Internal Mixer

Polyethylene (PE) has found well-known use as a packaging material. The effect of rambutan peels flour (RPF) content on the tensile properties of linear low density polyethylene filled with rambutan peel flour was studied. RPF was melt blended with linear low–density polyethylene (LLDPE). LLDPE/RPF blends were prepared by using internal mixer (brabender) at 160 °C with the flour content ranged from 0 to 15 wt%. The tensile properties were tested by using a universal testing machine (UTM) according to ASTM D638. The tensile strength of LLDPE/RPF decreased gradually with the addition of rambutan peels flour content from 0% to 15%. The Young’s modulus of LLDPE/RPF increased with increasing the RPF size and content.

VASCO 9-4-20

Alloy Digest ◽  
1997 ◽  
Vol 46 (10) ◽  
Keyword(s):  
Fracture Toughness ◽  
Tensile Strength ◽  
High Temperature ◽  
Ultimate Tensile Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
High Tensile Strength ◽  
Temperature Performance

Abstract Vasco 9-4-20 (0.20 wt% C) is a premium quality aircraft steel that combines high tensile strength with good fracture toughness. It is a heat-treatable alloy capable of developing an ultimate tensile strength greater than 190 ksi. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance as well as heat treating, machining, and joining. Filing Code: SA-489. Producer or source: Vasco, An Allegheny Teledyne Company.

scholarly journals Influence of temporary cement in the tensile strenght of full crowns cemented with resin cement

2015 ◽  
Vol 18 (3) ◽  
pp. 52
Author(s):  
Daniela Ribon Galazi ◽  
Leticia Ferreira de Freitas Brianezzi ◽  
Adriana Regina Cruz Grando De Góes ◽  
Rafael Francisco Lia Mondelli ◽  
Áquira Ishikiriama ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Testing Machine ◽  
Negative Influence ◽  
Resin Cement ◽  
Distilled Water ◽  
Third Molars ◽  
Tukey Test ◽  
Universal Testing ◽  
Adhesive Cementation ◽  
Traction Test

<p>This study evaluated the influence of residual eugenol on the tensile strength in the ceromer crowns cementation, using resin cement. Thirty-nine third molars were prepared for a full crown. For each prepared tooth one provisional and one ceromer crown were made. The teeth were divided into three groups according the temporary cement (n=13): GTB: Temp Bond; GTBNE: Temp Bond NE and GDY: Dycal. After temporary cementation, the teeth were kept in distilled water for one week and then submitted to traction test in a universal testing machine (EMIC DL 500), using a 200Kgf load cell at 0.5mm/min speed. After the test, the teeth were cleaned and received the final adhesive cementation of ceromer crowns. Next, the specimens were kept in distilled water (37<sup>0</sup>C) for a week and then the traction test was performed, also at 0,5mm/min. The comparison among groups was carried out by variance analysis (ANOVA) followed by the Tukey test (p≤0.05). The results (Kgf) of provisional cementation for groups GTB, GTBNE and GDY were respectively: 2.75 ± 1.35b, 3.43 ± 1.66ab, and 4.48 ± 1.11a. The results of the adhesive cementation (Kgf) were respectively: 42.71 ± 15.33b, 57.59 ± 15.66a, and 54.75 ± 15.28ab. It was concluded that the temporary cement containing eugenol shows negative influence on the removal resistance of crowns cemented with resin cement. </p>

Optimization of ultimate tensile strength of welded Inconel 625 and duplex 2205

2021 ◽  
Vol 15 (1) ◽  
pp. 7715-7728
Author(s):  
S. Madhankumar ◽  
K. Manonmani ◽  
V. Karthickeyan ◽  
N. Balaji
Keyword(s):  
Tensile Strength ◽  
Stainless Steel ◽  
Ultimate Tensile Strength ◽  
Research Work ◽  
Testing Machine ◽  
Laser Beam Welding ◽  
Inconel 625 ◽  
Bead Geometry ◽  
Tensile Testing Machine ◽  
Inconel 625 Alloy

The ultimate strength is an important property of any material for the manufacturing of components. This paper utilized the laser beam welding (LBW), due to its smaller dimension, which produces lesser distortion and process velocity is higher. Inconel 625 alloy and duplex 2205 stainless steel is having higher strength and corrosive resistance properties. Due to the above-mentioned properties, it could be used in oil and gas storage containers, marine and geothermal applications. This research work presents an investigation of various input variable effects on the output variable (ultimate tensile strength) in LBW for dissimilar materials namely, Inconel 625 alloy and duplex 2205 stainless steel. The input variables for this research are the power of a laser, welding speed, and focal position. The experimental runs are developed with the help of design of experiment (DOE) and utilized statistical design expert software. The ultimate tensile strength on different runs is measured using a universal tensile testing machine. Then from a response surface methodology and ANOVA, the optimum value of ultimate tensile strength was determined to maximize the weld joint and bead geometry. Finally, the confirmation test was carried out, it reveals the maximum error of 0.912% with the predicted value. In addition, the microstructure of the weld beads was examined using optical microscopy.

Impact of Process Parameters on the Tensile Properties of DLP Additively Manufactured ELAST-BLK 10 UV-Curable Elastomer

2021 ◽  
Author(s):  
Asma Ul Hosna Meem ◽  
Kyle Rudolph ◽  
Allyson Cox ◽  
Austin Andwan ◽  
Timothy Osborn ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Elastic Modulus ◽  
Ultimate Tensile Strength ◽  
Tensile Properties ◽  
Process Parameters ◽  
Uv Light ◽  
Uv Curable ◽  
Build Orientation ◽  
Static Tensile ◽  
The Impact

Abstract Digital light processing (DLP) is an emerging vatphotopolymerization-based 3D-printing technology where full layers of photosensitive resin are irradiated and cured with projected ultraviolet (UV) light to create a three-dimensional part layer-by-layer. Recent breakthroughs in polymer chemistry have led to a growing number of UV-curable elastomeric photoresins developed exclusively for vat photopolymerization additive manufacturing (AM). Coupled with the practical manufacturing advantages of DLP AM (e.g., industry-leading print speeds and sub-micron-level print resolution), these novel elastomeric photoresins are compelling candidates for emerging applications requiring extreme flexibility, stretchability, conformability, and mechanically-tunable stiffness (e.g., soft robotic actuators and stretchable electronics). To advance the role of DLP AM in these novel and promising technological spaces, a fundamental understanding of the impact of DLP manufacturing process parameters on mechanical properties is requisite. This paper highlights our recent efforts to explore the process-property relationship for ELAST-BLK 10, a new commercially-available UV-curable elastomer for DLP AM. A full factorial design of experiments is used to investigate the effect of build orientation and layer thickness on the quasi-static tensile properties (i.e., small-strain elastic modulus, ultimate tensile strength, and elongation at fracture) of ELAST-BLK 10. Statistical results, based on a general linear model via ANOVA methods, indicate that specimens with a flat build orientation exhibit the highest elastic modulus, ultimate tensile strength, and elongation at fracture, likely due to a larger surface area that enhances crosslink density during the curing process. Several popular hyperelastic constitutive models (e.g., Mooney-Rivlin, Yeoh, and Gent) are calibrated to our quasi-static tensile data to facilitate component-level predictive analyses (e.g., finite-element modeling) of soft robotic actuators and other emerging soft-matter applications.

Study on the Performances and Interfacial Structure of Magnesium Hydroxide Whiskers/ABS Composites

2011 ◽  
Vol 109 ◽  
pp. 46-50
Author(s):  
Yu Zhi Jiang ◽  
Li Li Zhang ◽  
Yan Bo Li
Keyword(s):  
Tensile Strength ◽  
Elastic Modulus ◽  
Magnesium Hydroxide ◽  
Testing Machine ◽  
Surface Modifications ◽  
Interfacial Structure ◽  
Melt Extrusion ◽  
Elongation At Break ◽  
Universal Testing ◽  
Mechanical Performances

The magnesium hydroxide (MH) whiskers / ABS composites were prepared by melt-extrusion with modified whiskers as filler. The mechanical performances, including the tensile strength, elongation at break and elastic modulus, were tested by electronic universal testing machine. The results showed that with the increasing of the whisker dosage, the tensile strength and elongation at break reduced gradually, and the elastic modulus get maximum when it is 25%.The morphology on fracture of composites was analyzed by SEM. The conclusions are the whiskers of surface modifications can be evenly distributed in the composites and bond partly with ABS. that it is necessary to enhance the combine strength of interface on excellence performances of composites.

Tensile Properties of 1060 Al Alloy Subjected to Constrained Groove Pressing

2010 ◽  
Vol 129-131 ◽  
pp. 65-69 ◽  
Author(s):  
Kai Huai Yang ◽  
Wen Zhe Chen
Keyword(s):  
Tensile Strength ◽  
Ultimate Tensile Strength ◽  
Tensile Properties ◽  
Room Temperature ◽  
Al Alloy ◽  
Fracture Modes

Three groups of commercial 1060 Al alloy sheets were subjected to constrained groove pressing (CGP) at room temperature using parallel CGP, 180° cross CGP and 90° cross CGP, respectively. Tensile properties and fracture modes of as-annealed and CGPed samples were investigated. The ultimate tensile strength (UTS) of 1060 Al increases significantly after CGP, while the elongation decreases. But they are strongly dependence on the number of CGP passes and the pressing modes. The UTS and elongation of the samples processed by 90° cross CGP are best, consequently, the static toughness of the 90° cross CGPed samples is enhanced. Besides, all CGPed specimens failed in a ductile manner. With increasing the number of CGP pass, the amount of small dimples increases, and the dimples become shallow and more uniform.

Sign in / Sign up

Export Citation Format

Share Document