scholarly journals Characterization of CRYO AND RT ECAPed Aluminium 6063 Followed by Aging Using CHARPY IMPACT TEST

2021 ◽  
Vol 1091 (1) ◽  
pp. 012023
Author(s):  
Srinivasulu Arnuri ◽  
Swami Naidu Gurugubelli
Keyword(s):  
Impact Test ◽  
Charpy Impact ◽  
Charpy Impact Test

Characterization of Carbon Composites Properties for Application in Sport Industry

2015 ◽  
Vol 1120-1121 ◽  
pp. 515-518 ◽  
Author(s):  
Ladislav Fojtl ◽  
Soňa Rusnáková ◽  
Milan Žaludek ◽  
Alexander Čapka ◽  
Vladimír Rusnák
Keyword(s):  
Mechanical Properties ◽  
Impact Test ◽  
Charpy Impact ◽  
Charpy Impact Test ◽  
Carbon Composites ◽  
Impact Performance ◽  
Number Of Layers ◽  
Sport Industry ◽  
Composite Samples

In the present work, mechanical properties of prepreg carbon composites are studied. Five types of composite samples with different number of layers and prepreg material corresponding to material composition used for carbon rims are manufactured by compression molding. Prepared composites are tested and compared with respect to flexural strength and modulus. Furthermore, impact performance using Charpy impact test is also evaluated.

scholarly journals Material Characterization of 316L Stainless Steel After Being Subjected To Cryogenic Treatment

2013 ◽  
pp. 156-160
Author(s):  
Mohd Touseef Nauman ◽  
S. Rasool Mohideen ◽  
Nasreen Kaleem
Keyword(s):  
Stainless Steel ◽  
316L Stainless Steel ◽  
Impact Test ◽  
Cryogenic Treatment ◽  
Charpy Impact ◽  
Hardness Test ◽  
Charpy Impact Test ◽  
Deep Cryogenic Treatment ◽  
Shear Area

Post processing of materials is necessary to suit them for the intended requirements. The properties of stainless steel of grade 316L cannot be influenced with further processing such as hot working [1]. Thus the current study aims at investigating the properties of stainless steel of grade 316L after being subjected to deep cryogenic treatment. The specimens from both cryogenically treated and untreated conditions were subjected to Tensile Test, Charpy Impact Test, Rockwell Hardness Test, Microstructure and Percentage Shear Area Analysis and the results thus obtained are discussed in this paper. The results have shown that cryogenic treatment has improved the hardness and strength.

Influence of Honeycomb Core Compression on the Mechanical Properties of the Sandwich Structure

2013 ◽  
Vol 486 ◽  
pp. 283-288
Author(s):  
Ladislav Fojtl ◽  
Soňa Rusnáková ◽  
Milan Žaludek
Keyword(s):  
Mechanical Properties ◽  
Impact Test ◽  
Charpy Impact ◽  
Charpy Impact Test ◽  
Low Velocity Impact ◽  
Bending Test ◽  
Honeycomb Core ◽  
Low Velocity ◽  
Three Point Bending ◽  
Core Technology

This research paper deals with an investigation of the influence of honeycomb core compression on the mechanical properties of sandwich structures. These structures consist of prepreg facing layers and two different material types of honeycomb and are produced by modified compression molding called Crush-Core technology. Produced structures are mechanically tested in three-point bending test and subjected to low-velocity impact and Charpy impact test.

scholarly journals Investigation on Flexural Behavior of Geopolymer-Based Carbon Textile/Basalt Fiber Hybrid Composite

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 751
Author(s):  
Chi Hiep Le ◽  
Petr Louda ◽  
Katarzyna Ewa Buczkowska ◽  
Iva Dufkova
Keyword(s):  
Flexural Strength ◽  
Hybrid Composite ◽  
Impact Test ◽  
Basalt Fiber ◽  
Charpy Impact ◽  
Charpy Impact Test ◽  
Flexural Behavior ◽  
Thin Plates ◽  
The One ◽  
Dose Levels

This paper presents an experimental research on the mechanical properties of the hybrid composite thin-plates of the short basalt fibers (CBFs)/carbon textile-reinforced geomortar. The effect of fiber contents and lengths of CBFs on the flexural behavior of carbon textile-reinforced geopolymer specimens (TRGs) was investigated by the four-point flexural strength and Charpy impact test. The experimental results of hybrid TRGs, on the one hand, were compared with reference TRGs, without CBF addition; on the other hand, they were compared with the results of our previous publication. According to the mixing manner applied, fresh geomortar indicated a marked reduction in workability, increasing the CBF loading. Furthermore, using CBFs with lengths of 12 mm and 24 mm makes it easy to form the fiber clusters in geomortar during mixing. According to all the CBF loadings used, it was found that TRGs showed a significant improvement in both static and dynamic flexural strength. However, the failure mode of these TRGs is similar to that of the reference TRGs, described by the process of fiber debonding or simultaneously fiber debonding and collapse. In comparison with our prior work results, neither the CBF dose levels nor the fiber lengths used in this work have yielded a positive effect on the failure manner of TRGs. According to the results of the Charpy impact test, this reveals that the anchoring capacity of textile layers in geomortar plays an important role in specimens’ strength.

scholarly journals A New Fracture Analysis Technique for Charpy Impact Test Using Image Processing

2021 ◽  
Vol 59 (1) ◽  
pp. 61-66
Author(s):  
Tae Chang Park ◽  
Beom Suk Kim ◽  
Ji Hee Son ◽  
Yeong Koo Yeo
Keyword(s):  
Image Processing ◽  
Brittle Fracture ◽  
Ductile Fracture ◽  
Impact Test ◽  
Charpy Impact ◽  
Charpy Impact Test ◽  
Fracture Analysis ◽  
Binary Image ◽  
Fracture Area ◽  
Brittle Fractures

The Charpy impact test is used to identify the transition between ductility and brittleness. The percentages of ductile and brittle fractures in steel can be evaluated based on each fracture area, which is presently determined by an analyzer with the naked eye. This method may lead to subjective judgement, and difficulty accurately quantifying the percentage. To resolve this problem, a new analysis method based on image processing is proposed in this study. A program that can automatically calculate the percentage of the ductile and brittle fractures has been developed. The analysis is performed after converting an RGB fracture image into a binary image using image processing techniques. The final binary image consists of 0 and 1 pixels. The parts with the pixel values of 1 correspond to the brittle fracture areas, and the pixel values of 0 represent the ductile fracture areas. As a result, by counting the number of 0 pixels in the entire area, it is possible to automatically calculate the percentage of ductile fracture. Using the proposed automatic fracture analysis program, it is possible to selectively distinguish only the brittle fracture from the entire fracture area, and to accurately and quantitatively calculate the percentages of ductile and brittle fractures.

scholarly journals Charpy Impact Test of Oxidized and Hydrogenated Zircaloy Using a Thin Strip Specimen

2004 ◽  
Vol 41 (3) ◽  
pp. 247-251
Author(s):  
Teppei OTSUKA ◽  
Kenichi HASHIZUME ◽  
Masayasu SUGISAKI
Keyword(s):  
Impact Test ◽  
Charpy Impact ◽  
Charpy Impact Test ◽  
Thin Strip
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