Investigations of high temperature deformation and crack growth under variable load histories

Brust, F. W.

doi:10.1016/0020-7683(94)00249-v

Cited by 6 publications

(8 citation statements)

References 23 publications

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“…Other classical fracture parameters produced poor results compared with the extensive experimental data that was compiled in this program. From 1992 to the present, Brust andco-workers (1994±1995) have shown that the T Ã -integral can characterize the high temperature history dependent crack growth response of several steel alloys used in fossil fueled energy production facilities. In 1993, Kostylev andMargolin (1993), in the context of elasticplastic crack growth, illustrated the ability of T Ã to characterize quasi-static and dynamic crack response.…”

Section: Example Applications Of the T ã -Integralmentioning

confidence: 99%

The Elastic-Plastic Finite Element Alternating Method (EPFEAM) and the prediction of fracture under WFD conditions in aircraft structures

Wang¹,

Brust²,

Atluri³

1997

Computational Mechanics

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This report provides a summary of the Elastic-Plastic Finite Element Alternating Method (EPFEAM), the T Ã -integral fracture mechanics parameter, and the use of both tools to predict the residual strength of aircraft panels with multiple-site damage. Because this report is meant to be self-contained and each of the three subjects is a considerable research topic in itself, the report is written in three parts. Part I, EPFEAM Theory provides a summary of the elastic-plastic ®nite element alternating method (EPFEAM) and the algorithms for fracture analysis and crack growth predictions. Part II, Fracture and the T Ã -Integral Parameter provides a complete description of the T Ã -integral fracture parameter including a detailed discussion of the theoretical basis of T Ã and the practical aspects of its use for fracture predictions. Finally, Part III, Computational Predictions of the NIST Multiple Site Damage Experimental Results provides a series of predictions of a number of fracture tests performed at the National Institute of Standards and Technology (NIST). These predictions are then compared with the experimental data, thus validating the present model for computing the residual strength under wide-spread-fatigue damage conditions.The reader that is interested in all the topics can study all three self-contained parts, while the reader that is only interested in the practical aspects of fracture predictions using these methods can read only Part III. This is the Part II report, Fracture and the T Ã -Integral Parameter.

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Section: Example Applications Of the T ã -Integralmentioning

confidence: 99%

The Elastic-Plastic Finite Element Alternating Method (EPFEAM) and the prediction of fracture under WFD conditions in aircraft structures

Wang¹,

Brust²,

Atluri³

1997

Computational Mechanics

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“…Final fracture occurred with an audible rip. It was also clear that both tips of the main crack did not grow at the same loads (deWit 1995). This must be kept in mind when reviewing the results since crack growth was only recorded at one crack tip.…”

Section: Introductionmentioning

confidence: 99%

“…Despite these limitations a very large data base exists (see Wilkowski et al 1995) which clearly shows that conservative predictions can be expected if a lower bound (compact specimen) J-Resistance curve is used to predict monotonic loading of one single crack to fracture in a pipe. A large ongoing program (Hopper et al 1992) shows that J-theory cannot account for cyclic effects. Most importantly for aerospace applications, a far ®eld J value has no meaning for a large crack with MSD ahead of it.…”

Section: Introductionmentioning

confidence: 99%

“…Practical methods for predicting the residual strength of the MSD problem include the plastic zone technique (Swift 1985), the crack tip opening angle (CTOA) method (Newman et al 1993), and the T Ã -integral method (Pyo et al 1994a(Pyo et al , 1994bSingh et al 1994;Brust 1995a). The plastic zone method predicts that the main crack will link with an MSD crack if their plastic zones overlap.…”

Section: Introductionmentioning

confidence: 99%

“…Please see deWit et al (1995) for more details. Table 1 summarizes the series of tests carried out at NIST.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Elastic-Plastic Finite Element Alternating Method (EPFEAM) and the prediction of fracture under WFD conditions in aircraft structures

Wang

Brust

Atluri

1997

Computational Mechanics

View full text Add to dashboard Cite

This report provides a summary of the ElasticPlastic Finite Element Alternating Method (EPFEAM), the T Ã -integral fracture mechanics parameter, and the use of both the tools to predict the residual strength of aircraft panels with multiple-site damage. Because this report is meant to be self-contained and each of the three subjects is a considerable research topic in itself, the report is written in three parts. Part I, EPFEAM Theory provides a summary of the elastic-plastic ®nite element alternating method (EPFEAM) and the algorithms for fracture analysis and crack growth predictions. Part II, Fracture and the T Ã -Integral Parameter provides a complete description of the T Ã -integral fracture parameter including a detailed discussion of the theoretical basis of T Ã and the practical aspects of its use for fracture predictions. Finally, Part III, Computational Predictions of the NIST Multiple Site Damage Experimental Results provides a series of predictions of a number of fracture tests performed at the National Institute of Standards and Technology (NIST). These predictions are then compared with the experimental data, thus validating the present model for computing the residual strength under wide-spread-fatigue damage conditions.The reader that is interested in all the topics can study all the three self-contained parts, while the reader that is only interested in the practical aspects of fracture predictions using these methods can read only Part III. This is the Part III report,``Computational Predictions of the NIST Multiple Site Damage Experimental Results''.

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Load history effects on creep crack growth

Brust

Majumdar

1994

Engineering Fracture Mechanics

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Investigations of high temperature deformation and crack growth under variable load histories

Cited by 6 publications

References 23 publications

The Elastic-Plastic Finite Element Alternating Method (EPFEAM) and the prediction of fracture under WFD conditions in aircraft structures

The Elastic-Plastic Finite Element Alternating Method (EPFEAM) and the prediction of fracture under WFD conditions in aircraft structures

The Elastic-Plastic Finite Element Alternating Method (EPFEAM) and the prediction of fracture under WFD conditions in aircraft structures

Load history effects on creep crack growth

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