scholarly journals An experimental study for the characterization of elastic brittle-fracture behavior of materials by means of continuous damage mechanics-aided approaches

2018 ◽  
Vol 10 ◽  
pp. 272-279
Author(s):  
V.N. Kytopoulos ◽  
J. Venetis ◽  
A. Altzoumailis ◽  
E. Sideridis
Keyword(s):  
Experimental Study ◽  
Brittle Fracture ◽  
Fracture Behavior ◽  
Damage Mechanics

scholarly journals An experimental study on the fracture behavior of different aluminium alloys subjected to ballistic impact

2019 ◽  
Vol 17 ◽  
pp. 957-964 ◽  
Author(s):  
Pradipta Kumar Jena ◽  
K Siva Kumar ◽  
R.K. Mandal ◽  
A.K. Singh
Keyword(s):  
Experimental Study ◽  
Aluminium Alloys ◽  
Fracture Behavior ◽  
Ballistic Impact

scholarly journals EXPERIMENTAL STUDY ON BRITTLE FRACTURE OF BUCKLING-RESTRAINED BRACES

2013 ◽  
Vol 78 (691) ◽  
pp. 1613-1620
Author(s):  
Ryunosuke ITO ◽  
Tadao NAKAGOMI ◽  
Masatoshi MURAI ◽  
Mamoru IWATA ◽  
Ryota WAKAI
Keyword(s):  
Experimental Study ◽  
Brittle Fracture ◽  
Buckling Restrained Braces

Experimental Study of Ductile Fracture for Non-Aligned Multiple Flaws in a Plate

2009 ◽  
Author(s):  
Katsumasa Miyazaki ◽  
Kunio Hasegawa ◽  
Koichi Saito ◽  
Bostjan Bezensek
Keyword(s):  
Experimental Study ◽  
Ductile Fracture ◽  
Estimation Procedure ◽  
Maximum Load ◽  
Experimental Results ◽  
Collapse Load ◽  
Plate Specimen ◽  
Fracture Tests ◽  
Almost All

The fitness-for-service code requires the characterization of non-aligned multiple flaws for the flaw evaluation, which is performed using a flaw proximity rule. Worldwide almost all codes provide own proximity rule, often with unclear technical bases of the application of proximity rule to ductile fracture. To clarify the appropriate proximity rule for non-aligned multiple flaws in fully plastic fracture, fracture tests on flat plate specimen with non-aligned multiple through wall flaws were conducted at ambient temperature. The emphasis of this study was put on the flaw alignment rule, which determines whether non-aligned flaws are treated as independent or aligned onto the same plane for the purpose of flaw evaluations. The effects of the flaw separation and flaw size on the maximum load were investigated. The experimental results were compared with the estimations of the collapse load using the alignment rules in the ASME Section XI, BS7910 and API 579-1 codes. A new estimation procedure specific to the fully plastic fracture was proposed and compared with the comparison with the experimental results.

Effect of Flaw Dimensions on Ductile Fracture Behavior of Non-Aligned Multiple Flaws in a Plate

2011 ◽  
Author(s):  
Katsumasa Miyazaki ◽  
Kunio Hasegawa ◽  
Koichi Saito
Keyword(s):  
Ductile Fracture ◽  
Flat Plate ◽  
Fracture Behavior ◽  
Maximum Load ◽  
Surface Flaws ◽  
Fracture Tests ◽  
The Difference ◽  
Almost All ◽  
Maximum Minimum

The fitness-for-service codes require the characterization of non-aligned multiple flaws for flaw evaluation, which is performed using a flaw proximity rule. Worldwide, almost all such codes provide their own proximity rule, often with unclear technical bases of the application of proximity rule to ductile or fully plastic fracture. In particular, the effect of flaw dimensions of multiple surface flaws on fully plastic fracture of non-aligned multiple flaws had not been clear. To clarify the effect of the difference of part through-wall and through-wall flaws on the behavior of fully plastic fracture, the fracture tests of flat plate specimens with non-aligned multiple part through-wall flaws were conducted. When the flaw depth a was shallow with 0.4 in ratio of a to thickness t, the maximum load Pmax occurred at penetration of multiple flaws and the effect of vertical distance of non-aligned multiple flaws H on Pmax was not so significant. However, when flaw depth was deep with 0.8 in a/t, Pmax occurred after penetration of flaws and the effect of H on Pmax could be seen clearly. It was judged that the through-wall flaw tests were appropriate for discussion of the effect of H on Pmax and the alignment rule of multiple flaws. In addition, in order to clarify the appropriate length parameter to estimate Pmax of test specimens with dissimilar non-aligned through-wall multiple flaws, the fracture tests of plate specimens were also conducted. The effect of different flaw length on Pmax was discussed with maximum, minimum and averages of dissimilar non-aligned multiple flaw lengths. Experimental results showed that the maximum length lmax would be an appropriate length parameter to estimate Pmax, when the non-aligned multiple through-wall flaws were dissimilar.

Experimental Study on Performance Characterization of Bolted Joint Under Transverse Loading

Measurement ◽  
2021 ◽  
pp. 109608
Author(s):  
Zhifeng Liu ◽  
Mingpo Zheng ◽  
Jinfei Guo ◽  
Hongyan Chu ◽  
Xing Yan ◽  
...  
Keyword(s):  
Experimental Study ◽  
Bolted Joint ◽  
Transverse Loading ◽  
Performance Characterization

CHARACTERIZATION OF A SURFACE-CHARGE MODULATION ELECTROFLUIDIC TRANSISTOR BY HYDRODYNAMIC MEASUREMENTS

2012 ◽  
Vol 11 (04) ◽  
pp. 1240021
Author(s):  
GUILLAUME LAFFITE ◽  
XU ZHENG ◽  
LOUIS RENAUD ◽  
FRANÇOIS BESSUEILLE ◽  
ELISABETH CHARLAIX ◽  
...  
Keyword(s):  
Experimental Study ◽  
Zeta Potential ◽  
Surface Charge ◽  
Gate Voltage ◽  
Silica Surface ◽  
Insulating Layer ◽  
Charge Regulation ◽  
Charge Modulation ◽  
Gating Effect

We present an experimental study on the electrofluidic transistor in this paper. A novel and easy way to integrate the transistor into a microchannel is developed. The performances of the insulating layer, especially the leakage current under gate voltage, are carefully characterized. The change of surface charge on silica surface by gate polarization is measured, however, by measuring the streaming current, the gating effect on zeta potential has not been observed. This result should imply new assumption in the understanding of the charge regulation in the electrical double layer under gate polarization.

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