Acoustic emission evaluation of concrete culverts

Date

2004-10-01

Author

Birgul, R
Al-shammari, FMW
Yaman, İsmail Özgür
Aktan, MH

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

124
views

0
downloads

An experimental investigation was conducted to address the durability aspect of steel-reinforced concrete (RC) culverts using an accelerated aging environment. Analysis of the experimental data was built on the acoustic emission (AE) activity. AE methodologies were used to compare the behaviors of RC culverts after an aging process using a rate-process analysis. In the rate-process analysis, probability density functions (PDF) of AE activity were obtained from the experimental data to indicate the damage status of experimental specimens. This AE assessment procedure included only the incidence of an AE event ignoring any features of the AE signal itself. Results showed reliable and quantitative assessment based on AE activity for defining the relative strengths of steel-reinforced specimens.

Subject Keywords

Mechanical Engineering, General Materials Science, Mechanics of Materials, Condensed Matter Physics

URI

https://hdl.handle.net/11511/38764

Journal

RESEARCH IN NONDESTRUCTIVE EVALUATION

DOI

https://doi.org/10.1080/09349840490915654

Collections

Department of Civil Engineering, Article

Suggestions

OpenMETU
Core

Electrical conductivity of polypyrrole films at a temperature range of 70 K to 350 K Kaynak, A (Elsevier BV, 1998-01-01) The de conductivity of electrochemically synthesized polypyrrole films doped from light to intermediate levels with p-toluene sulfonic acid was measured in the temperature range of 77 to 300 K, using a modified four-probe rig. Plots of de conductivity vs. temperature were parameterized by fitting Mott's Variable Range Hopping conduction model. The localization length of localized electrons was assumed to be 3 Angstrom, which is approximately equal to the length of a pyrrole monomer. Mott parameters of polyp...
Electrical conductivity and Hall mobility in p-type TlGaSe2 crystals Qasrawi, AF; Hasanlı, Nızamı (Elsevier BV, 2004-07-02) Systematic dark electrical conductivity and Hall mobility measurements have been carried out in the temperature range of 200-350 K on p-type TlGaSe2 crystals. The analysis of the temperature-dependent electrical conductivity and carrier concentration reveals the extrinsic type of conduction with an acceptor impurity level located at 0.33 eV, and donor and acceptor concentrations of 9.0 x 10(15) and 1.3 x 10(16) cm(-3), respectively. A hole and electron effective masses of 0.520m(0) and 0.325m(0), respective...
Investigating the effects of hardening of aluminium alloys on equal-channel angular pressing-A finite-element study Karpuz, P.; Simsir, C.; Gür, Cemil Hakan (Elsevier BV, 2009-03-15) Equal-channel angular pressing (ECAP) is a promising severe plastic deformation method for production of ultrafine-grained bulk metals and alloys with considerably improved mechanical properties. In this study, numerical experiments were carried out to investigate the effect of strain hardening of aluminum alloys on the process performance of ECAP via finite element modeling. In the constitutive model, isothermal-plane strain, frictionless condition was assumed. The numerical results showed that strain hard...
Fatigue crack growth behaviour in aluminium alloy 7475 under different aging conditions Gürbüz, Rıza (Informa UK Limited, 2001-12-01) The effects of aging temperature and aging time on fatigue crack growth resistance have been studied for a 7475 (Al - Zn - Mg based) aluminium alloy. The alloy was tested in the underaged, peak aged, and overaged conditions after aging at 120 and 160 degreesC. Fatigue crack propagation tests were conducted in laboratory air using compact tension specimens in L-S orientation, under constant amplitude sinusoidal loading with an R ratio of zero. Results are discussed on the basis of resultant microstructures, ...
Thermally stimulated currents in n-InS single crystals Hasanlı, Nızamı; Yuksek, NS (Elsevier BV, 2003-03-24) Thermally stimulated current measurements are carried out on as-grown n-InS single crystals in the temperature range of 10-125 K. Experimental evidence is found for four trapping centers present in InS. They are located at 20, 35, 60 and 130 meV. The trap parameters have been determined by various methods of analysis, and they agree well with each other.

Citation Formats

R. Birgul, F. Al-shammari, İ. Ö. Yaman, and M. Aktan, “Acoustic emission evaluation of concrete culverts,” RESEARCH IN NONDESTRUCTIVE EVALUATION, pp. 191–208, 2004, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38764.