基于折减因子的奥氏体不锈钢螺栓高温应力-应变模型

doi:10.11896/cldb.23080049

Abstract
Figure/Table
References
Related Citation (12)

Download:

Full Text ( PDF ) (6199KB)
Export: BibTeX | EndNote (RIS)

Abstract Stainless steel bolts are increasingly used in bolted semi-rigid connections due to their remarkable durability, ductility, and fire resistance. Stainless steel bolts, like their base material (stainless steel bars), exhibit smooth non-linear characteristics at both ambient and elevated temperatures, and they do not have a well-defined yield point in their stress-strain curves. This material behavior can be analytically represented by different material models, the most popular of which is based on the Ramberg-Osgood formulation or its extensions thereof. However, the available prediction formulas for the associated parameters in the material model of stainless steels are not necessarily applicable to austenitic and duplex stainless steel bolts subjected to work-hardening and cold-forging processes. Therefore, this paper proposes a nonlinear elevated tempe-rature constitutive model for stainless steel bolts based on their high-temperature reduction factors from previous studies. Supposing that five mechanical parameters (Young's modulus, proportional limit, yield strength, ultimate strength, and ultimate strain) are given at ambient temperature, and the reduction formulas derived for stainless steel bolts is used to obtain five mechanical parameters at a specified temperature and to evaluate the correlation of the tested stress-strain curve with the predicted one. This prediction methodology shows that the predicted curve is in clear agreement with the tested one, which is shown to be that the elevated temperature material model based on the reduction factor has consi-derable prediction accuracy. Thus, a stress-strain curve at a given temperature can be predicted based on five mechanical parameters at ambient temperature by combining the elevated temperature reduction equations for stainless steel bolts.

Key words： austenitic stainless-steel bolts elevated temperature reduction factor stress-strain curve nonlinear constitutive model

Published: 10 March 2024 Online: 2024-03-18

CLC number:	TU391
	TG142.25

Fund:Science and Technology Research Project of Chongqing Education Commission(KJZD-K202112901).

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	SUN Tao
	WANG Hui
	ZHANG Lei
	LIU Xiaoying
	ZHAO Honggang
	JIANG Wei
	CHENG Xinlei
	HE Xiaoyong

Cite this article:

SUN Tao,WANG Hui,ZHANG Lei, et al. Retention Factor-based Stress-Strain Models of Austenitic Stainless-Steel Bolts at Elevated Temperatures[J]. Materials Reports, 2024, 38(5): 23080049-9.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.23080049 OR http://www.mater-rep.com/EN/Y2024/V38/I5/23080049

1 Wang H. Behaviour of high strength steel double web angle connections assembled by austenitic bolts during and after fire. Ph. D. Thesis, Chongqing University, China, 2022(in Chinese).
王辉. 奥氏体螺栓装配高强双角钢节点的抗火性能. 博士学位论文, 重庆大学, 2022.
2 Elflah M, Theofanous M, Dirar S, et al. Journal of Constructional Steel Research, 2019, 152, 183.
3 Elflah M, Theofanous M, Dirar S. Journal of Constructional Steel Research, 2019, 152, 194.
4 Elflah M, Theofanous M, Dirar S, et al. Engineering Structures, 2019, 184, 158.
5 Fu W. Enhanced fire resistance of austenitic high-strength bolts A4L-80 and their connected beam-to-column joints with angles. Master's Thesis, Chongqing University, China, 2023(in Chinese).
付卫. A4L-80奥氏体高强螺栓及其连接角钢梁柱节点的抗火性能研究. 硕士学位论文, 重庆大学, 2023.
6 Song Y, Yam M C, Wang J. Engineering Structures, 2023, 275, 115337.
7 Wang H, Hu Y, Wang X Q, et al. Engineering Structures, 2021, 235, 111973.
8 Wang H, Nie S, Li J Y. Fire Safety Journal, 2022, 129, 103563.
9 Wang H, Nie S, Li J, et al. Journal of Materials in Civil Engineering, 2023, 35(5), 04023076.
10 Ramberg W, Osgood W R. Description of stress-strain curves by three parameters (Technical notes No. 902), National Advisory Committee for Aeronautics, Washington DC, USA, 1943.
11 Hill H N. Determination of stress-strain relations from the offset yield strength values (Technical note No. 927), National Advisory Committee for Aeronautics, Washington DC, USA,1944.
12 Holmquist J L. Drilling and Production Practice, 1939, 392-420.
13 Mirambell E, Real E. Journal of Constructional Steel Research, 2000, 54(4), 109.
14 Rasmussen K J R. Journal of Constructional Steel Research, 2003, 59(1), 47.
15 Gardner L, Ashraf M. Engineering Structures, 2006, 28(6), 926.
16 Quach W M, Teng J G, Chung K F. Journal of Structural Engineering, 2008, 134(9), 1518.
17 Hradil P, Talja A, Real E, et al. Thin-Walled Structures, 2013, 63, 63.
18 Quach, W M, Huang J F. Procedia Engineering, 2011,14, 288.
19 Arrayago I, Real E, Gardner L. Materials and Design, 2015, 87, 540.
20 EN 1993-1-4:2006. Eurocode 3, design of steel structures-part 1-4: general rules-supplementary rules for stainless steels, Brussels (Belgium): Comité Européen de Normalisation (CEN), 2006.
21 EN 1993-1-4:2006+A1:2015. Eurocode 3, design of steel structures-part 1-4: general rules-supplementary rules for stainless steels, Brussels (Belgium): Comité Européen de Normalisation (CEN), 2015.
22 SCI. Design manual for structural stainless steel (fourth ed., SCI Publication No. P413), The Steel Construction Institute (SCI), UK, 2017.
23 American Institute of Steel Construction(AISC). Specification for structural stainless steel buildings (ANSI/AISC 370), Chicago: AISC, 2021.
24 Rasmussen K J R, Hancock G J. Journal of Structural Engineering, 193, 119(8), 2368.
25 Real E, Arrayago I, Mirambell E, et al. Thin-Walled Structures, 2014, 83, 2.
26 Yun X, Wang Z, Gardner L. Journal of Structural Engineering, 2021, 147(6), 04021060.
27 Gardner L, Yun X. Construction and Building Materials, 2018, 189, 527.
28 Rokilan M, Mahendran M. Journal of Constructional Steel Research, 2020, 167, 105851.
29 Mäkeläinen P, Outinen J. Journal of Constructional Steel Research, 1998, 46 (1-3), 455.
30 Chen J, Young B. Engineering Structures, 2006, 28(2), 229.
31 Gardner L, Insausti A, Ng K T, et al. Journal of Constructional Steel Research, 2010, 66(5), 634.
32 Gardner L, Bu Y, Francis P, et al. Construction and Building Materials, 2016, 114, 977.
33 Huang Y, Young B. Journal of Constructional Steel Research, 2014, 92, 103.
34 Wang X Q, Tao Z, Song T Y, et al. Journal of Constructional Steel Research, 2014, 99, 129.
35 Tao Z, Wang X Q, Hassan M K, et al. Journal of Constructional Steel Research, 2019, 152, 296.