RELIABILITY ANALYSIS OF THE MECHANICAL PROPERTIES OF 30MnB4 HIGH STRENGTH STEEL BOLTS UNDER STATIC LOADING CONDITIONS

Mehmet Bozca; Umut Kınıt

RELIABILITY ANALYSIS OF THE MECHANICAL PROPERTIES OF 30MnB4 HIGH STRENGTH STEEL BOLTS UNDER STATIC LOADING CONDITIONS

Abstract

The objective of this study is to investigate the mechanical properties of high-strength steel bolts under static loading conditions based on reliability analysis. High-strength steel bolts samples were manufactured by sequential cutting, cold forming, heading and heat treating. All sample bolts were fully threaded hexagon cap M12 bolts, and the material was 30MnB4. During the heat treatment, quenching and tempering processes were applied to the high-strength steel bolts. A standard tensile test was performed on the samples. Stress-strain curves were obtained for the steel bolt samples after different heat treatments. The mechanical properties of the steel bolts, such as yield strength and tensile strength, were determined for the different heat treatments. Reliability analyses of the mechanical properties of the steel bolts under static loading conditions were conducted. The mean values, standard deviations and standard variables of yield strength and tensile strength were calculated. It was concluded that the reliability levels of yield strength and tensile strength (R>99%) satisfied the required yield strength values RP0,2 and tensile strength values Rm given in the literature. Furthermore, having high reliability levels production is an advantage for manufacturer both in local and international markets.

Keywords

References

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Details

Primary Language

English

Subjects

Engineering

Journal Section

Research Article

Authors

Mehmet Bozca This is me
0000-0002-2620-6053
Türkiye

Umut Kınıt This is me
0000-0003-0387-4005
Türkiye

Publication Date

June 1, 2021

Submission Date

December 13, 2019

Acceptance Date

January 20, 2020

Published in Issue

Year 2020 Volume: 38 Number: 2

IZ

https://izlik.org/JA29ZZ58UL

Cite

RIS / Bibtex

APA

Bozca, M., & Kınıt, U. (2021). RELIABILITY ANALYSIS OF THE MECHANICAL PROPERTIES OF 30MnB4 HIGH STRENGTH STEEL BOLTS UNDER STATIC LOADING CONDITIONS. Sigma Journal of Engineering and Natural Sciences, 38(2), 495-512. https://izlik.org/JA29ZZ58UL

AMA

1.Bozca M, Kınıt U. RELIABILITY ANALYSIS OF THE MECHANICAL PROPERTIES OF 30MnB4 HIGH STRENGTH STEEL BOLTS UNDER STATIC LOADING CONDITIONS. SIGMA. 2021;38(2):495-512. https://izlik.org/JA29ZZ58UL

Chicago

Bozca, Mehmet, and Umut Kınıt. 2021. “RELIABILITY ANALYSIS OF THE MECHANICAL PROPERTIES OF 30MnB4 HIGH STRENGTH STEEL BOLTS UNDER STATIC LOADING CONDITIONS”. Sigma Journal of Engineering and Natural Sciences 38 (2): 495-512. https://izlik.org/JA29ZZ58UL.

EndNote

Bozca M, Kınıt U (June 1, 2021) RELIABILITY ANALYSIS OF THE MECHANICAL PROPERTIES OF 30MnB4 HIGH STRENGTH STEEL BOLTS UNDER STATIC LOADING CONDITIONS. Sigma Journal of Engineering and Natural Sciences 38 2 495–512.

IEEE

[1]M. Bozca and U. Kınıt, “RELIABILITY ANALYSIS OF THE MECHANICAL PROPERTIES OF 30MnB4 HIGH STRENGTH STEEL BOLTS UNDER STATIC LOADING CONDITIONS”, SIGMA, vol. 38, no. 2, pp. 495–512, June 2021, [Online]. Available: https://izlik.org/JA29ZZ58UL

ISNAD

Bozca, Mehmet - Kınıt, Umut. “RELIABILITY ANALYSIS OF THE MECHANICAL PROPERTIES OF 30MnB4 HIGH STRENGTH STEEL BOLTS UNDER STATIC LOADING CONDITIONS”. Sigma Journal of Engineering and Natural Sciences 38/2 (June 1, 2021): 495-512. https://izlik.org/JA29ZZ58UL.

JAMA

1.Bozca M, Kınıt U. RELIABILITY ANALYSIS OF THE MECHANICAL PROPERTIES OF 30MnB4 HIGH STRENGTH STEEL BOLTS UNDER STATIC LOADING CONDITIONS. SIGMA. 2021;38:495–512.

MLA

Bozca, Mehmet, and Umut Kınıt. “RELIABILITY ANALYSIS OF THE MECHANICAL PROPERTIES OF 30MnB4 HIGH STRENGTH STEEL BOLTS UNDER STATIC LOADING CONDITIONS”. Sigma Journal of Engineering and Natural Sciences, vol. 38, no. 2, June 2021, pp. 495-12, https://izlik.org/JA29ZZ58UL.

Vancouver

1.Mehmet Bozca, Umut Kınıt. RELIABILITY ANALYSIS OF THE MECHANICAL PROPERTIES OF 30MnB4 HIGH STRENGTH STEEL BOLTS UNDER STATIC LOADING CONDITIONS. SIGMA [Internet]. 2021 Jun. 1;38(2):495-512. Available from: https://izlik.org/JA29ZZ58UL