Journal of Jilin University(Engineering and Technology Edition) ›› 2025, Vol. 55 ›› Issue (3): 912-924.doi: 10.13229/j.cnki.jdxbgxb.20230569

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Mechanical properties of austenitic stainless steels under monotonic and cyclic loading

Jian-huang YAN1(),Zhi-yong WANG2,En-hong TANG3,Xue HAN4,Hai-feng LI1(),Zi-qin JIANG5   

  1. 1.College of Civil Engineering，Huaqiao University，Xiamen 361021，China
    2.Zhangzhou City Investment Design Consulting Group Co. ，Ltd. ，Zhangzhou 363007，China
    3.Fujian Hongchang Construction Group Co. ，Ltd. ，Longyan 364030，China
    4.School of Architecture and Civil Engineering，Xiamen Institute of Technology，Xiamen 361021，China
    5.College of Architecture and Civil Engineering，Beijing University of Technology，Beijing 100124，China
  • Received:2023-06-06 Online:2025-03-01 Published:2025-05-20
  • Contact: Hai-feng LI E-mail:jh-yan@foxmail.com;lihai_feng@126.com

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Abstract:

To promote the application of austenitic stainless steel in structural systems， it is necessary to clarify the mechanical properties of austenitic stainless steel materials. By material types and loading systems as variables， a total of 33 bar-shaped specimens were subjected to testing， yielding stress-strain curves， stress-time curves， and skeleton curves. The influence of mechanical properties such as yield ratio， hysteretic energy dissipation and percentage elongation after fracture was thoroughly examined. The parameter values of the Johnson-Cook model （J-C model） were obtained by fitting， and the finite element model of austenitic stainless steel specimens was established using ABAQUS software. The numerical simulation results showed good agreement with the experimental results， which confirmed both the accuracy of the finite element modeling method and the applicability of the J-C model. The test results show that the stress-strain curves of austenitic stainless steel specimens exhibit including elastic phase， strengthening phase， and local deformation phase， but no obvious yield platform is observed. The yield ratio of 316 austenitic stainless steel specimens under cyclic loading reached 0.857， while the hysteretic energy dissipation and percentage elongation after fracture decreased significantly， and its plastic deformation ability gradually weakened. The mechanical properties such as yield ratio， hysteretic energy dissipation and percentage elongation after fracture of 303 and 304 austenitic stainless steel specimens under monotonic and cyclic loading are relatively similar， and both of them have good plastic deformation ability.

Key words: austenitic stainless steel, low-cycle fatigue loading, mechanical properties, energy dissipation

CLC Number: 

  • TU391

Fig.1

Specimen design （Units： mm）"

Table 1

Parameters of specimens"

试件

编号

材料

类型

加载

模式

试件

编号

材料

类型

加载

模式

A-1303NM1B-5a304NM5a
A-2303NM2B-5b304NM5b
A-3303NM3B-5c304NM5c
A-4a303NM4aB-6304NM6
A-4b303NM4bB-7304NM7
A-4c303NM4cC-1316NM1
A-5a303NM5aC-2316NM2
A-5b303NM5bC-3316NM3
A-5c303NM5cC-4a316NM4a
A-6303NM6C-4b316NM4b
A-7303NM7C-4c316NM4c
B-1304NM1C-5a316NM5a
B-2304NM2C-5b316NM5b
B-3304NM3C-5c316NM5c
B-4a304NM4aC-6316NM6
B-4b304NM4bC-7316NM7
B-4c304NM4c———

Fig.2

Loading device"

Fig.3

Loading systems"

Fig.4

Failure models of austenitic stainless steel"

Table 2

Test results"

试件σy/MPaσu/MPaεuδE/JA破坏类别
A-1543.02751.200.4280.723367.950.536Ⅱ
A-2557.05770.580.4500.723393.200.554Ⅰ
A-3537.72765.840.4240.702370.080.522Ⅰ
A-4a563.14765.190.4470.736358.250.507Ⅱ
A-4b557.89770.220.4490.724354.630.499Ⅱ
A-4c547.57773.870.2040.708161.840.227Ⅱ
A-5a598.93771.710.4260.776382.860.537Ⅰ
A-5b570.55783.510.4260.728395.480.542Ⅰ
A-5c513.61781.660.3910.657305.230.420Ⅰ
A-6565.11775.630.4220.729391.250.547Ⅰ
A-7559.24780.130.4270.717394.260.547Ⅱ
B-1549.38762.320.4860.721390.640.552Ⅱ
B-2544.07742.460.4950.733406.380.580Ⅰ
B-3553.62771.960.4880.717401.550.571Ⅰ
B-4a535.98743.050.5020.721407.030.582Ⅱ
B-4b519.96733.990.4930.708394.820.572Ⅰ
B-5a535.94738.120.4970.726408.100.583Ⅰ
B-5b522.01734.240.5130.711418.360.601Ⅰ
B-5c529.92737.890.5170.718417.350.592Ⅰ
B-6521.33734.390.5200.710418.960.606Ⅰ
C-1598.90827.830.4310.723384.390.495Ⅱ
C-2621.69777.730.2570.799283.230.386Ⅰ
C-3616.79787.850.1950.783304.270.412Ⅰ
C-4a606.24776.470.1970.781282.730.392Ⅱ
C-4b709.03839.640.1970.844315.110.311Ⅱ
C-4c634.71797.340.1900.796312.880.411Ⅰ
C-5a633.75784.600.1940.808308.350.408Ⅰ
C-5b624.73788.080.1730.793274.440.364Ⅱ
C-5c640.62788.450.1760.813292.240.390Ⅱ
C-6629.28790.610.2790.796273.310.366Ⅱ
C-7719.40839.560.1890.857245.530.296Ⅰ

Fig.5

Analysis of yield ratio"

Fig.6

Analysis of hysteretic energy dissipation"

Fig.7

Analysis of percentage elongation after fracture"

Fig.8

Typical stress-strain curve"

Fig.9

Influence of material types"

Table 3

Parameter values of J-C model"

材料类型b/MPan
A组（303）3160.579 5
B组（304）3220.408 7
C组（316）2990.480 8

Fig.10

Influence of loading systems"

Fig.11

Stress-time of specimens"

Fig.12

Comparison of J-C model predictions with experimental results"

Fig.13

Finite element modeling"

Fig.14

Comparison of finite element analysis results with test results"

Fig.15

Comparison of damage patterns from finite element analysis and test results"

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