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ELEVATED TEMPERATURE FATIGUE CRACK GROWTH BEHAVIOR OF Ti‐1100
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| Zeitschriftentitel: | Fatigue & Fracture of Engineering Materials & Structures |
|---|---|
| Personen und Körperschaften: | , |
| In: | Fatigue & Fracture of Engineering Materials & Structures, 17, 1994, 5, S. 551-561 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
|
| Schlagwörter: |
| author_facet |
Parida, B. K. Nicholas, T. Parida, B. K. Nicholas, T. |
|---|---|
| author |
Parida, B. K. Nicholas, T. |
| spellingShingle |
Parida, B. K. Nicholas, T. Fatigue & Fracture of Engineering Materials & Structures ELEVATED TEMPERATURE FATIGUE CRACK GROWTH BEHAVIOR OF Ti‐1100 Mechanical Engineering Mechanics of Materials General Materials Science |
| author_sort |
parida, b. k. |
| spelling |
Parida, B. K. Nicholas, T. 8756-758X 1460-2695 Wiley Mechanical Engineering Mechanics of Materials General Materials Science http://dx.doi.org/10.1111/j.1460-2695.1994.tb00254.x <jats:p><jats:bold>Abstract—</jats:bold> The fatigue crack growth behavior of Ti‐1100 is analyzed at elevated temperatures to evaluate the effects of mechanical and environmental variables. Experiments conducted over a wide range of frequencies from 0.01 Hz to 200 Hz indicate a strong dependence of the growth rate upon cyclic loading frequency. Superposition of hold time at maximum and minimum loads over a baseline 1.0 Hz cyclic loading frequency produces an insignificant variation in crack growth rate, which may be attributed to the combined effects of enhanced environmental degradation, crack‐tip blunting and increased asperity‐induced closure level in this material. It is deduced that a hold time at maximum load results in an interaction of the environmental effects with a retardation effect due to crack tip blunting as a consequence of creep under maximum applied load, whereas for hold at minimum loads, extensive crack‐branching and micro‐cracking appear to enhance crack closure loads resulting in lower crack growth rates. A linear superposition model is employed to account for the complex interactions due to fatigue, creep and environmental degradation.</jats:p> ELEVATED TEMPERATURE FATIGUE CRACK GROWTH BEHAVIOR OF Ti‐1100 Fatigue & Fracture of Engineering Materials & Structures |
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ELEVATED TEMPERATURE FATIGUE CRACK GROWTH BEHAVIOR OF Ti‐1100 |
| title_unstemmed |
ELEVATED TEMPERATURE FATIGUE CRACK GROWTH BEHAVIOR OF Ti‐1100 |
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ELEVATED TEMPERATURE FATIGUE CRACK GROWTH BEHAVIOR OF Ti‐1100 |
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ELEVATED TEMPERATURE FATIGUE CRACK GROWTH BEHAVIOR OF Ti‐1100 |
| title_full_unstemmed |
ELEVATED TEMPERATURE FATIGUE CRACK GROWTH BEHAVIOR OF Ti‐1100 |
| title_short |
ELEVATED TEMPERATURE FATIGUE CRACK GROWTH BEHAVIOR OF Ti‐1100 |
| title_sort |
elevated temperature fatigue crack growth behavior of ti‐1100 |
| topic |
Mechanical Engineering Mechanics of Materials General Materials Science |
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http://dx.doi.org/10.1111/j.1460-2695.1994.tb00254.x |
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1994 |
| physical |
551-561 |
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<jats:p><jats:bold>Abstract—</jats:bold> The fatigue crack growth behavior of Ti‐1100 is analyzed at elevated temperatures to evaluate the effects of mechanical and environmental variables. Experiments conducted over a wide range of frequencies from 0.01 Hz to 200 Hz indicate a strong dependence of the growth rate upon cyclic loading frequency. Superposition of hold time at maximum and minimum loads over a baseline 1.0 Hz cyclic loading frequency produces an insignificant variation in crack growth rate, which may be attributed to the combined effects of enhanced environmental degradation, crack‐tip blunting and increased asperity‐induced closure level in this material. It is deduced that a hold time at maximum load results in an interaction of the environmental effects with a retardation effect due to crack tip blunting as a consequence of creep under maximum applied load, whereas for hold at minimum loads, extensive crack‐branching and micro‐cracking appear to enhance crack closure loads resulting in lower crack growth rates. A linear superposition model is employed to account for the complex interactions due to fatigue, creep and environmental degradation.</jats:p> |
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| description | <jats:p><jats:bold>Abstract—</jats:bold> The fatigue crack growth behavior of Ti‐1100 is analyzed at elevated temperatures to evaluate the effects of mechanical and environmental variables. Experiments conducted over a wide range of frequencies from 0.01 Hz to 200 Hz indicate a strong dependence of the growth rate upon cyclic loading frequency. Superposition of hold time at maximum and minimum loads over a baseline 1.0 Hz cyclic loading frequency produces an insignificant variation in crack growth rate, which may be attributed to the combined effects of enhanced environmental degradation, crack‐tip blunting and increased asperity‐induced closure level in this material. It is deduced that a hold time at maximum load results in an interaction of the environmental effects with a retardation effect due to crack tip blunting as a consequence of creep under maximum applied load, whereas for hold at minimum loads, extensive crack‐branching and micro‐cracking appear to enhance crack closure loads resulting in lower crack growth rates. A linear superposition model is employed to account for the complex interactions due to fatigue, creep and environmental degradation.</jats:p> |
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| imprint | Wiley, 1994 |
| imprint_str_mv | Wiley, 1994 |
| institution | DE-Bn3, DE-Brt1, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229, DE-D275 |
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| physical | 551-561 |
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| publishDateSort | 1994 |
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| series | Fatigue & Fracture of Engineering Materials & Structures |
| source_id | 49 |
| spelling | Parida, B. K. Nicholas, T. 8756-758X 1460-2695 Wiley Mechanical Engineering Mechanics of Materials General Materials Science http://dx.doi.org/10.1111/j.1460-2695.1994.tb00254.x <jats:p><jats:bold>Abstract—</jats:bold> The fatigue crack growth behavior of Ti‐1100 is analyzed at elevated temperatures to evaluate the effects of mechanical and environmental variables. Experiments conducted over a wide range of frequencies from 0.01 Hz to 200 Hz indicate a strong dependence of the growth rate upon cyclic loading frequency. Superposition of hold time at maximum and minimum loads over a baseline 1.0 Hz cyclic loading frequency produces an insignificant variation in crack growth rate, which may be attributed to the combined effects of enhanced environmental degradation, crack‐tip blunting and increased asperity‐induced closure level in this material. It is deduced that a hold time at maximum load results in an interaction of the environmental effects with a retardation effect due to crack tip blunting as a consequence of creep under maximum applied load, whereas for hold at minimum loads, extensive crack‐branching and micro‐cracking appear to enhance crack closure loads resulting in lower crack growth rates. A linear superposition model is employed to account for the complex interactions due to fatigue, creep and environmental degradation.</jats:p> ELEVATED TEMPERATURE FATIGUE CRACK GROWTH BEHAVIOR OF Ti‐1100 Fatigue & Fracture of Engineering Materials & Structures |
| spellingShingle | Parida, B. K., Nicholas, T., Fatigue & Fracture of Engineering Materials & Structures, ELEVATED TEMPERATURE FATIGUE CRACK GROWTH BEHAVIOR OF Ti‐1100, Mechanical Engineering, Mechanics of Materials, General Materials Science |
| title | ELEVATED TEMPERATURE FATIGUE CRACK GROWTH BEHAVIOR OF Ti‐1100 |
| title_full | ELEVATED TEMPERATURE FATIGUE CRACK GROWTH BEHAVIOR OF Ti‐1100 |
| title_fullStr | ELEVATED TEMPERATURE FATIGUE CRACK GROWTH BEHAVIOR OF Ti‐1100 |
| title_full_unstemmed | ELEVATED TEMPERATURE FATIGUE CRACK GROWTH BEHAVIOR OF Ti‐1100 |
| title_short | ELEVATED TEMPERATURE FATIGUE CRACK GROWTH BEHAVIOR OF Ti‐1100 |
| title_sort | elevated temperature fatigue crack growth behavior of ti‐1100 |
| title_unstemmed | ELEVATED TEMPERATURE FATIGUE CRACK GROWTH BEHAVIOR OF Ti‐1100 |
| topic | Mechanical Engineering, Mechanics of Materials, General Materials Science |
| url | http://dx.doi.org/10.1111/j.1460-2695.1994.tb00254.x |