scholarly journals Bilinear cyclic stress--strain parameters for Types 304 and 316 stainless steel

1978 ◽  
Author(s):  
P. Maiya
Keyword(s):  
Stainless Steel ◽  
Cyclic Stress ◽  
Stress Strain ◽  
316 Stainless Steel

Cyclic stress-strain relations from bending and push-pull tests

1971 ◽  
Vol 6 (2) ◽  
pp. 99-107 ◽  
Author(s):  
D J White ◽  
G P Horwood
Keyword(s):  
Stainless Steel ◽  
Mild Steel ◽  
Room Temperature ◽  
Cyclic Stress ◽  
Stress Strain ◽  
Rectangular Section ◽  
Good Correspondence ◽  
Bending Tests ◽  
Cyclic Plastic ◽  
Pull Tests

Cyclic plastic-straining tests have been conducted in push-pull on cylindrical specimens and in uniform bending on rectangular-section bars of mild steel (B.S. 1501–161 Grade 28A) and of stainless steel (En 58J). The mild-steel specimens were tested at room temperature and 350°C, the stainless-steel specimens at room temperature and 650°C. It is found that there is good correspondence between cyclic stress-strain relations (the cyclic semi-range of strain and the corresponding cyclic semi-range of stress) derived from bending tests, when an expression analogous to that developed by Nadai for monotonic straining is used, and those obtained more directly from push-pull tests.

Environmental Fatigue Testing of Type 316 Stainless Steel in 310 °C Water

2005 ◽  
Author(s):  
Hyunchul Cho ◽  
Byoung Koo Kim ◽  
In Sup Kim ◽  
Seung Jong Oh ◽  
Dae Yul Jung ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Fatigue Life ◽  
Fatigue Testing ◽  
Low Cycle Fatigue ◽  
Pure Water ◽  
Cyclic Stress ◽  
Strain Rates ◽  
Low Oxygen ◽  
Test Environment ◽  
316 Stainless Steel

Low cycle fatigue tests were conducted to investigate fatigue behaviors of Type 316 stainless steel in 310 °C low oxygen water. In the tests, strain rates were 4 × 10−4, 8 × 10−5 s−1 and applied strain amplitudes were 0.4, 0.6, 0.8, and 1.0%. The test environment was pure water at a temperature of 310 °C, pressure of 15 MPa, and dissolved oxygen concentration of < 1 ppb. Type 316 stainless steel underwent a primary hardening, followed by a moderate softening for both strain rates in 310 °C low oxygen water. The primary hardening was much less pronounced and secondary hardening was observed at lower strain amplitude. On the other hand, the cyclic stress response in room temperature air exhibited gradual softening and did not show any hardening. The fatigue life of the studied steel in 310 °C low oxygen water was shorter than that of the statistical model in air. The reduction of fatigue life was enhanced with decreasing strain rate from 4 × 10−4 to 8 × 10−5 s−1.

High-Cycle Fatigue Behavior of Solution-Annealed and Thermally-Aged Type 304 Stainless Steel

1980 ◽  
Vol 102 (1) ◽  
pp. 141-146 ◽  
Author(s):  
P. Soo ◽  
J. G. Y. Chow
Keyword(s):  
Stainless Steel ◽  
High Cycle Fatigue ◽  
Fatigue Behavior ◽  
Cyclic Stress ◽  
304 Stainless Steel ◽  
Strain History ◽  
Cycle Fatigue ◽  
Stress Strain ◽  
Type 304 ◽  
Type 304 Stainless Steel

High-cycle, load-controlled fatigue data have been obtained for solution-annealed and thermally-aged Type 304 stainless steel, for temperatures between 22 and 593°C (72-1100°F) at a cycling rate of 40 Hz. Although these data are principally used to assess fatigue failure in components subjected to rapid stress cycling, it has been shown that they may be correlated with available low-cycle data if cyclic stress-strain curves are used for converting the high-cycle stresses to effective strains. Differences in initial stress-strain history and cycling rates for the high- and low-cycle data evaluated are found to be unimportant. For the thermally-aged material there is an initial enhancement of the high-cycle-fatigue strength but, after long aging times, the strength decreases to a value close to that for unaged material. The carbide precipitates formed during aging appear to influence fatigue life through changes they impart in the cyclic work-hardening rates.

A Simple Model for Stable Cyclic Stress-Strain Relationship of Type 304 Stainless Steel Under Nonproportional Loading

1999 ◽  
Vol 122 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Takamoto Itoh ◽  
Xu Chen ◽  
Toshimitsu Nakagawa ◽  
Masao Sakane
Keyword(s):  
Stainless Steel ◽  
Cyclic Stress ◽  
304 Stainless Steel ◽  
Surface Model ◽  
Stress Strain ◽  
Nonproportional Loading ◽  
Strain Relationship ◽  
Strain Paths ◽  
Type 304 ◽  
Type 304 Stainless Steel

This paper proposes a simple two-surface model for cyclic incremental plasticity based on combined Mroz and Ziegler kinematic hardening rules under nonproportional loading. The model has only seven material constants and a nonproportional factor which describes the degree of additional hardening. Cyclic loading experiments with fourteen strain paths were conducted using Type 304 stainless steel. The simulation has shown that the model was precise enough to calculate the stable cyclic stress-strain relationship under nonproportional loadings. [S0094-4289(00)00101-8]

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