An experimental and theoretical approach for an estimation of ΔKth
The existence of a fatigue threshold value may affect the design process when a damage-tolerant design is considered that uses non-destructive techniques for evaluating the shape and dimensions of the defects inside materials. Obviously it should be possible to estimate the stress field surrounding...
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| Autor*in: |
Herold, H. [verfasserIn] Streitenberger, M. [verfasserIn] Zinke, M. [verfasserIn] |
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| Format: |
E-Artikel |
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| Erschienen: |
Oxford, UK: Blackwell Science Ltd ; 2000 |
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| Schlagwörter: |
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| Umfang: |
Online-Ressource |
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| Reproduktion: |
2001 ; Blackwell Publishing Journal Backfiles 1879-2005 |
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| Übergeordnetes Werk: |
In: Fatigue & fracture of engineering materials & structures - Oxford [u.a.] : Wiley-Blackwell, 1979, 23(2000), 9, Seite 0 |
| Übergeordnetes Werk: |
volume:23 ; year:2000 ; number:9 ; pages:0 |
| Links: |
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| DOI / URN: |
10.1046/j.1460-2695.2000.00314.x |
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| 520 | |a The existence of a fatigue threshold value may affect the design process when a damage-tolerant design is considered that uses non-destructive techniques for evaluating the shape and dimensions of the defects inside materials. Obviously it should be possible to estimate the stress field surrounding these defects and this is not generally a problem with modern numerical methods.Many factors are involved in determining the growth rate of a fatigue crack. Some of these are highly significant and it is possible to obtain the coefficients of a correlation function. Some others are not well defined and the only effect is to expand the scatter of experimental data.Consider the sigmoidal curve we obtain when plotting the crack growth rate versus the applied ΔKI . A very difficult parameter to measure but very useful for fatigue design is the ΔKIth value, because below this value a crack may be forming, hence, here ΔKIth is defined by the transition between a normal (e.g. 10−10 m/cycle) and a very low range of crack growth rate (<10−10 m/cycle).The ΔKIth value is very difficult to obtain by experimental methods because the growth rate is of the order or less than the atomic lattice span (3 × 10−10 m/cycle), but we can correlate the transition value with the cyclic crack tip plastic zone size and other structural parameters of metallic materials.The aim of this work is to offer a contribution about the parameters which influence ΔKIth in stainless steels and welded joints based on the crack tip plastic zone radius. | ||
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10.1046/j.1460-2695.2000.00314.x doi (DE-627)NLEJ242939910 DE-627 ger DE-627 rakwb Herold, H. verfasserin aut An experimental and theoretical approach for an estimation of ΔKth Oxford, UK Blackwell Science Ltd 2000 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The existence of a fatigue threshold value may affect the design process when a damage-tolerant design is considered that uses non-destructive techniques for evaluating the shape and dimensions of the defects inside materials. Obviously it should be possible to estimate the stress field surrounding these defects and this is not generally a problem with modern numerical methods.Many factors are involved in determining the growth rate of a fatigue crack. Some of these are highly significant and it is possible to obtain the coefficients of a correlation function. Some others are not well defined and the only effect is to expand the scatter of experimental data.Consider the sigmoidal curve we obtain when plotting the crack growth rate versus the applied ΔKI . A very difficult parameter to measure but very useful for fatigue design is the ΔKIth value, because below this value a crack may be forming, hence, here ΔKIth is defined by the transition between a normal (e.g. 10−10 m/cycle) and a very low range of crack growth rate (<10−10 m/cycle).The ΔKIth value is very difficult to obtain by experimental methods because the growth rate is of the order or less than the atomic lattice span (3 × 10−10 m/cycle), but we can correlate the transition value with the cyclic crack tip plastic zone size and other structural parameters of metallic materials.The aim of this work is to offer a contribution about the parameters which influence ΔKIth in stainless steels and welded joints based on the crack tip plastic zone radius. 2001 Blackwell Publishing Journal Backfiles 1879-2005 |2001|||||||||| fatigue threshold Streitenberger, M. verfasserin aut Zinke, M. verfasserin aut Orazi, L. oth Cammarota, G. P. oth In Fatigue & fracture of engineering materials & structures Oxford [u.a.] : Wiley-Blackwell, 1979 23(2000), 9, Seite 0 Online-Ressource (DE-627)NLEJ243926898 (DE-600)2014746-6 1460-2695 nnns volume:23 year:2000 number:9 pages:0 http://dx.doi.org/10.1046/j.1460-2695.2000.00314.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 23 2000 9 0 |
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10.1046/j.1460-2695.2000.00314.x doi (DE-627)NLEJ242939910 DE-627 ger DE-627 rakwb Herold, H. verfasserin aut An experimental and theoretical approach for an estimation of ΔKth Oxford, UK Blackwell Science Ltd 2000 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The existence of a fatigue threshold value may affect the design process when a damage-tolerant design is considered that uses non-destructive techniques for evaluating the shape and dimensions of the defects inside materials. Obviously it should be possible to estimate the stress field surrounding these defects and this is not generally a problem with modern numerical methods.Many factors are involved in determining the growth rate of a fatigue crack. Some of these are highly significant and it is possible to obtain the coefficients of a correlation function. Some others are not well defined and the only effect is to expand the scatter of experimental data.Consider the sigmoidal curve we obtain when plotting the crack growth rate versus the applied ΔKI . A very difficult parameter to measure but very useful for fatigue design is the ΔKIth value, because below this value a crack may be forming, hence, here ΔKIth is defined by the transition between a normal (e.g. 10−10 m/cycle) and a very low range of crack growth rate (<10−10 m/cycle).The ΔKIth value is very difficult to obtain by experimental methods because the growth rate is of the order or less than the atomic lattice span (3 × 10−10 m/cycle), but we can correlate the transition value with the cyclic crack tip plastic zone size and other structural parameters of metallic materials.The aim of this work is to offer a contribution about the parameters which influence ΔKIth in stainless steels and welded joints based on the crack tip plastic zone radius. 2001 Blackwell Publishing Journal Backfiles 1879-2005 |2001|||||||||| fatigue threshold Streitenberger, M. verfasserin aut Zinke, M. verfasserin aut Orazi, L. oth Cammarota, G. P. oth In Fatigue & fracture of engineering materials & structures Oxford [u.a.] : Wiley-Blackwell, 1979 23(2000), 9, Seite 0 Online-Ressource (DE-627)NLEJ243926898 (DE-600)2014746-6 1460-2695 nnns volume:23 year:2000 number:9 pages:0 http://dx.doi.org/10.1046/j.1460-2695.2000.00314.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 23 2000 9 0 |
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10.1046/j.1460-2695.2000.00314.x doi (DE-627)NLEJ242939910 DE-627 ger DE-627 rakwb Herold, H. verfasserin aut An experimental and theoretical approach for an estimation of ΔKth Oxford, UK Blackwell Science Ltd 2000 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The existence of a fatigue threshold value may affect the design process when a damage-tolerant design is considered that uses non-destructive techniques for evaluating the shape and dimensions of the defects inside materials. Obviously it should be possible to estimate the stress field surrounding these defects and this is not generally a problem with modern numerical methods.Many factors are involved in determining the growth rate of a fatigue crack. Some of these are highly significant and it is possible to obtain the coefficients of a correlation function. Some others are not well defined and the only effect is to expand the scatter of experimental data.Consider the sigmoidal curve we obtain when plotting the crack growth rate versus the applied ΔKI . A very difficult parameter to measure but very useful for fatigue design is the ΔKIth value, because below this value a crack may be forming, hence, here ΔKIth is defined by the transition between a normal (e.g. 10−10 m/cycle) and a very low range of crack growth rate (<10−10 m/cycle).The ΔKIth value is very difficult to obtain by experimental methods because the growth rate is of the order or less than the atomic lattice span (3 × 10−10 m/cycle), but we can correlate the transition value with the cyclic crack tip plastic zone size and other structural parameters of metallic materials.The aim of this work is to offer a contribution about the parameters which influence ΔKIth in stainless steels and welded joints based on the crack tip plastic zone radius. 2001 Blackwell Publishing Journal Backfiles 1879-2005 |2001|||||||||| fatigue threshold Streitenberger, M. verfasserin aut Zinke, M. verfasserin aut Orazi, L. oth Cammarota, G. P. oth In Fatigue & fracture of engineering materials & structures Oxford [u.a.] : Wiley-Blackwell, 1979 23(2000), 9, Seite 0 Online-Ressource (DE-627)NLEJ243926898 (DE-600)2014746-6 1460-2695 nnns volume:23 year:2000 number:9 pages:0 http://dx.doi.org/10.1046/j.1460-2695.2000.00314.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 23 2000 9 0 |
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10.1046/j.1460-2695.2000.00314.x doi (DE-627)NLEJ242939910 DE-627 ger DE-627 rakwb Herold, H. verfasserin aut An experimental and theoretical approach for an estimation of ΔKth Oxford, UK Blackwell Science Ltd 2000 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The existence of a fatigue threshold value may affect the design process when a damage-tolerant design is considered that uses non-destructive techniques for evaluating the shape and dimensions of the defects inside materials. Obviously it should be possible to estimate the stress field surrounding these defects and this is not generally a problem with modern numerical methods.Many factors are involved in determining the growth rate of a fatigue crack. Some of these are highly significant and it is possible to obtain the coefficients of a correlation function. Some others are not well defined and the only effect is to expand the scatter of experimental data.Consider the sigmoidal curve we obtain when plotting the crack growth rate versus the applied ΔKI . A very difficult parameter to measure but very useful for fatigue design is the ΔKIth value, because below this value a crack may be forming, hence, here ΔKIth is defined by the transition between a normal (e.g. 10−10 m/cycle) and a very low range of crack growth rate (<10−10 m/cycle).The ΔKIth value is very difficult to obtain by experimental methods because the growth rate is of the order or less than the atomic lattice span (3 × 10−10 m/cycle), but we can correlate the transition value with the cyclic crack tip plastic zone size and other structural parameters of metallic materials.The aim of this work is to offer a contribution about the parameters which influence ΔKIth in stainless steels and welded joints based on the crack tip plastic zone radius. 2001 Blackwell Publishing Journal Backfiles 1879-2005 |2001|||||||||| fatigue threshold Streitenberger, M. verfasserin aut Zinke, M. verfasserin aut Orazi, L. oth Cammarota, G. P. oth In Fatigue & fracture of engineering materials & structures Oxford [u.a.] : Wiley-Blackwell, 1979 23(2000), 9, Seite 0 Online-Ressource (DE-627)NLEJ243926898 (DE-600)2014746-6 1460-2695 nnns volume:23 year:2000 number:9 pages:0 http://dx.doi.org/10.1046/j.1460-2695.2000.00314.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 23 2000 9 0 |
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10.1046/j.1460-2695.2000.00314.x doi (DE-627)NLEJ242939910 DE-627 ger DE-627 rakwb Herold, H. verfasserin aut An experimental and theoretical approach for an estimation of ΔKth Oxford, UK Blackwell Science Ltd 2000 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The existence of a fatigue threshold value may affect the design process when a damage-tolerant design is considered that uses non-destructive techniques for evaluating the shape and dimensions of the defects inside materials. Obviously it should be possible to estimate the stress field surrounding these defects and this is not generally a problem with modern numerical methods.Many factors are involved in determining the growth rate of a fatigue crack. Some of these are highly significant and it is possible to obtain the coefficients of a correlation function. Some others are not well defined and the only effect is to expand the scatter of experimental data.Consider the sigmoidal curve we obtain when plotting the crack growth rate versus the applied ΔKI . A very difficult parameter to measure but very useful for fatigue design is the ΔKIth value, because below this value a crack may be forming, hence, here ΔKIth is defined by the transition between a normal (e.g. 10−10 m/cycle) and a very low range of crack growth rate (<10−10 m/cycle).The ΔKIth value is very difficult to obtain by experimental methods because the growth rate is of the order or less than the atomic lattice span (3 × 10−10 m/cycle), but we can correlate the transition value with the cyclic crack tip plastic zone size and other structural parameters of metallic materials.The aim of this work is to offer a contribution about the parameters which influence ΔKIth in stainless steels and welded joints based on the crack tip plastic zone radius. 2001 Blackwell Publishing Journal Backfiles 1879-2005 |2001|||||||||| fatigue threshold Streitenberger, M. verfasserin aut Zinke, M. verfasserin aut Orazi, L. oth Cammarota, G. P. oth In Fatigue & fracture of engineering materials & structures Oxford [u.a.] : Wiley-Blackwell, 1979 23(2000), 9, Seite 0 Online-Ressource (DE-627)NLEJ243926898 (DE-600)2014746-6 1460-2695 nnns volume:23 year:2000 number:9 pages:0 http://dx.doi.org/10.1046/j.1460-2695.2000.00314.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 23 2000 9 0 |
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| abstract |
The existence of a fatigue threshold value may affect the design process when a damage-tolerant design is considered that uses non-destructive techniques for evaluating the shape and dimensions of the defects inside materials. Obviously it should be possible to estimate the stress field surrounding these defects and this is not generally a problem with modern numerical methods.Many factors are involved in determining the growth rate of a fatigue crack. Some of these are highly significant and it is possible to obtain the coefficients of a correlation function. Some others are not well defined and the only effect is to expand the scatter of experimental data.Consider the sigmoidal curve we obtain when plotting the crack growth rate versus the applied ΔKI . A very difficult parameter to measure but very useful for fatigue design is the ΔKIth value, because below this value a crack may be forming, hence, here ΔKIth is defined by the transition between a normal (e.g. 10−10 m/cycle) and a very low range of crack growth rate (<10−10 m/cycle).The ΔKIth value is very difficult to obtain by experimental methods because the growth rate is of the order or less than the atomic lattice span (3 × 10−10 m/cycle), but we can correlate the transition value with the cyclic crack tip plastic zone size and other structural parameters of metallic materials.The aim of this work is to offer a contribution about the parameters which influence ΔKIth in stainless steels and welded joints based on the crack tip plastic zone radius. |
| abstractGer |
The existence of a fatigue threshold value may affect the design process when a damage-tolerant design is considered that uses non-destructive techniques for evaluating the shape and dimensions of the defects inside materials. Obviously it should be possible to estimate the stress field surrounding these defects and this is not generally a problem with modern numerical methods.Many factors are involved in determining the growth rate of a fatigue crack. Some of these are highly significant and it is possible to obtain the coefficients of a correlation function. Some others are not well defined and the only effect is to expand the scatter of experimental data.Consider the sigmoidal curve we obtain when plotting the crack growth rate versus the applied ΔKI . A very difficult parameter to measure but very useful for fatigue design is the ΔKIth value, because below this value a crack may be forming, hence, here ΔKIth is defined by the transition between a normal (e.g. 10−10 m/cycle) and a very low range of crack growth rate (<10−10 m/cycle).The ΔKIth value is very difficult to obtain by experimental methods because the growth rate is of the order or less than the atomic lattice span (3 × 10−10 m/cycle), but we can correlate the transition value with the cyclic crack tip plastic zone size and other structural parameters of metallic materials.The aim of this work is to offer a contribution about the parameters which influence ΔKIth in stainless steels and welded joints based on the crack tip plastic zone radius. |
| abstract_unstemmed |
The existence of a fatigue threshold value may affect the design process when a damage-tolerant design is considered that uses non-destructive techniques for evaluating the shape and dimensions of the defects inside materials. Obviously it should be possible to estimate the stress field surrounding these defects and this is not generally a problem with modern numerical methods.Many factors are involved in determining the growth rate of a fatigue crack. Some of these are highly significant and it is possible to obtain the coefficients of a correlation function. Some others are not well defined and the only effect is to expand the scatter of experimental data.Consider the sigmoidal curve we obtain when plotting the crack growth rate versus the applied ΔKI . A very difficult parameter to measure but very useful for fatigue design is the ΔKIth value, because below this value a crack may be forming, hence, here ΔKIth is defined by the transition between a normal (e.g. 10−10 m/cycle) and a very low range of crack growth rate (<10−10 m/cycle).The ΔKIth value is very difficult to obtain by experimental methods because the growth rate is of the order or less than the atomic lattice span (3 × 10−10 m/cycle), but we can correlate the transition value with the cyclic crack tip plastic zone size and other structural parameters of metallic materials.The aim of this work is to offer a contribution about the parameters which influence ΔKIth in stainless steels and welded joints based on the crack tip plastic zone radius. |
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An experimental and theoretical approach for an estimation of ΔKth |
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Streitenberger, M. Zinke, M. Orazi, L. Cammarota, G. P. |
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