Flexural test of Tee steel PEC beam

2015 ◽  
pp. 145-150 ◽  
Keyword(s):  
Flexural Test

Method development for the determination of textural properties of sugar beet roots

2019 ◽  
pp. 392-400 ◽  
Author(s):  
Gunnar Kleuker ◽  
Christa M. Hoffmann
Keyword(s):  
Sugar Beet ◽  
Compression Test ◽  
Storage Period ◽  
Textural Properties ◽  
Small Sample ◽  
Root Tip ◽  
Flexural Test ◽  
Sample Distribution ◽  
The Impact

The harvest of sugar beet leads to root tip breakage and surface damage through mechanical impacts, which increase storage losses. For the determination of textural properties of sugar beet roots with a texture analyzer a reliable method description is missing. This study aimed to evaluate the impact of washing, soil tare, storage period from washing until measurement, sample distribution and number of roots on puncture and compression measurements. For this purpose, in 2017 comprehensive tests were conducted with sugar beet roots grown in a greenhouse. In a second step these tests were carried out with different Beta varieties from a field trial, and in addition, a flexural test was included. Results show that the storage period after washing and the sample distribution had an influence on the puncture and compression strength. It is suggested to wash the roots by hand before the measurement and to determine the strength no later than 48 h after washing. For reliable and comparable results a radial distribution of measurement points around the widest circumference of the root is recommended for the puncture test. The sample position of the compression test had an influence on the compressive strength and therefore, needs to be clearly defined. For the puncture and the compression test it was possible to achieve stable results with a small sample size, but with increasing heterogeneity of the plant stand a higher number of roots is required. The flexural test showed a high variability and is, therefore, not recommended for the analysis of sugar beet textural properties.

An Interchangeable Turning Sprue Bushing in a Multi Cavity Family Injection Mold

2012 ◽  
Vol 548 ◽  
pp. 600-604
Author(s):  
Rozana Mohd Dahan ◽  
Saiful Bahri Mohd Yasin ◽  
Zakaria Razak ◽  
Mohd Helmi Omar
Keyword(s):  
Temperature Distribution ◽  
Test Piece ◽  
Volume Shrinkage ◽  
Injection Mold ◽  
Melt Flow ◽  
Flexural Test ◽  
Test Pieces ◽  
The Family ◽  
Separate Injection

Interchangeable Turning Sprue Bushing (ITSB) is a small insert at the centre of core side used to change runner directions for injecting 2 different products in a separate injection mold by shifting the melt filling to the cavities. The development of ITSB is significant in cutting down cost and time consumed during fabrication of a multi cavity family mold. In this study, the tensile and flexural test pieces were designed using CAD Solidwork. The test pieces analysis was performed using CAE Cadmould simulation in order to observe the melt flow of four multi cavities family mold incorporated without and with ITSB insert. The Cadmould simulation was used specifically to analyse the melt filling, temperature distribution and volume shrinkage of the test pieces. The simulation result demonstrated that ITSB is a useful insert that can be used to overcome problems encountered in the family mold system by balancing the melt filling, minimize temperature distribution and reduced the differential of volume shrinkage of the test piece manufactured. ITSB also reduced the frequent defects formed during production such as short molding, flashing and warpage.

Experimental Study on Cracking Property of Self-Compacting Concrete

2008 ◽  
Vol 400-402 ◽  
pp. 433-438
Author(s):  
Nan Guo Jin ◽  
Xian Yu Jin ◽  
Xiang Lin Gu
Keyword(s):  
Experimental Study ◽  
Tensile Strain ◽  
Experimental Results ◽  
Flexural Test ◽  
Self Compacting Concrete ◽  
Free Shrinkage ◽  
Normal Concrete ◽  
Strength Grade ◽  
Mix Proportion ◽  
Key Parameter

Taking free shrinkage as the key parameter in evaluating cracking of concrete, the cracking properties of self-compacting concrete with strength grade of C35 and C50 were investigated based on ring and slab restraint tests. Meanwhile, the ultimate tensile strain of self-compacting concrete was studied by using flexural test. Experimental results show that the shrinkage of self-compacting concrete is lower than that of normal concrete. Self-compacting concrete cracks later than normal concrete with the same strength grade. Although the ultimate flexural tensile strains of self-compacting concrete in 7 d and 28 d are a little bit lower than that of the normal concrete, it can still be concluded from the research that the cracking property of self-compacting concrete can be greatly improved by using proper mix proportion.

scholarly journals Mechanical Properties of CaO–Al2O3–SiO2 Glass-Ceramics Precipitating Hexagonal CaAl2Si2O8 Crystals

Crystals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 393
Author(s):  
Kei Maeda ◽  
Kosho Akatsuka ◽  
Gaku Okuma ◽  
Atsuo Yasumori
Keyword(s):  
Fracture Toughness ◽  
Liquidus Temperature ◽  
Fracture Behavior ◽  
Glass Ceramics ◽  
High Fracture Toughness ◽  
Flexural Test ◽  
Toughening Mechanism ◽  
High Fracture ◽  
X Ray ◽  
Microcrack Toughening

Fracture behavior via a flexural test for a newly found CaO–Al2O3–SiO2 (CAS) glass-ceramic (GC) was compared with that of enstatite GC and mica GC, which are well-known GCs with high-fracture toughness and machinability, respectively. By focusing on the nonelastic load–displacement curves, CAS GC was characterized as a less brittle material similar to machinable mica GC, compared with enstatite GC, which showed higher fracture toughness, KIC. The microcrack toughening mechanism in CAS GC was supported by the nondestructive observation of microcracks around the Vickers indentation using the X-ray microcomputed tomography technique. The CAS GC also showed higher transparency than mica GC due to its low crystallinity. Moreover, the precursor glass had easy formability due to its low-liquidus temperature.

Flexural Resistance Analysis on Hot Asphalt Mixtures with Wire Mesh Placement Modeling as Reinforcement

2021 ◽  
Vol 892 ◽  
pp. 99-106
Author(s):  
Romaynoor Ismy ◽  
Husaini ◽  
M. Saleh Sofyan ◽  
M. Isya
Keyword(s):  
Experimental Method ◽  
Vertical Axis ◽  
Flexible Pavement ◽  
Asphalt Mixtures ◽  
Wire Mesh ◽  
Flexural Test ◽  
Mesh Placement ◽  
Base Course ◽  
Flexural Resistance ◽  
Resistance Value

Flexural resistance is the ability of a specimen to withstand force in two pedestals with vertical axis until it is broken. Flexible pavement is a type of pavement which is very dependent with pavement course underneath. The dependency of flexible pavement in both base course and subgrade makes this pavement difficult to apply in unstable soil. Using wire mesh course as reinforcement is considerably able to raise the flexural resistance. This study is aimed to analyze flexural resistance value in hot mix by using wire mesh course as reinforcement. The study is conducted by applying experimental method with designing four types of wire mesh laying models in hot mix using three points flexural test equipment. Based on the study result, it is found that hot mix with wire mesh laying 30 mm from specimen surface is the best model type with 291,85 KN flexural resistance value with 8 mm of deflection depth. In this laying, it can be concluded that wire mesh course can raise up the flexural resistance up to 35,41% compared to the hot mix without wire mesh course.

scholarly journals Strength Evaluation of PyC for TRISO Particles: Development of Equibiaxial Flexural Test

2008 ◽  
Author(s):  
Yutai Katoh ◽  
Sosuke Kondo ◽  
Lance Lewis Snead ◽  
John D. Hunn
Keyword(s):  
Flexural Test ◽  
Strength Evaluation ◽  
Triso Particles

scholarly journals Tensile and Flexural Test on Kenaf Hybrid Composites

2018 ◽  
Vol 328 ◽  
pp. 012018 ◽  
Author(s):  
Z. Salleh ◽  
S. Yunus ◽  
N.R.N.M. Masdek ◽  
Y.M. Taib ◽  
I.I.S. Azhar ◽  
...  
Keyword(s):  
Hybrid Composites ◽  
Flexural Test
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