The prediction of creep damage in type 347 weld metal. Part I: the determination of material properties from creep and tensile tests

Spindler, M. W.

doi:10.1016/j.ijpvp.2004.09.003

Cited by 40 publications

(17 citation statements)

References 10 publications

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“…Tanaka and Mura [23] developed the irreversible action of dislocations into a quantitative model to predict fatigue endurance. Spindler [24] has shown that the amount of creep damage induced during stress relaxation depends on the starting position in the hysteresis loop, which can be traced ultimately to the sign of the initial back stress.…”

Section: Historical Setting -Structures Specimens and Back Stressesmentioning

confidence: 99%

A mathematical representation of the multiaxial Bauschinger effect

Frederick¹,

Armstrong²

2007

Materials at High Temperatures

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Section: Historical Setting -Structures Specimens and Back Stressesmentioning

confidence: 99%

A mathematical representation of the multiaxial Bauschinger effect

Frederick¹,

Armstrong²

2007

Materials at High Temperatures

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“…This behaviour was studied by Spindler [31], who developed a "Stress Modified Ductility Exhaustion" approach to overcome this issue. Furthermore this approach gives a better prediction of the creep damage due to intermediate creep dwell during the load cycle, in a typical power plant operating scenario [32,33].…”

Section: Asme Nh and R5 Creep-fatigue Damage Assessment Proceduresmentioning

confidence: 99%

On Creep Fatigue Interaction of Components at Elevated Temperature

Barbera

Chen

Liu

2016

Journal of Pressure Vessel Technology

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The accurate assessment of creep–fatigue interaction is an important issue for industrial components operating with large cyclic thermal and mechanical loads. An extensive review of different aspects of creep fatigue interaction is proposed in this paper. The introduction of a high temperature creep dwell within the loading cycle has relevant impact on the structural behavior. Different mechanisms can occur, including the cyclically enhanced creep, the creep enhanced plasticity and creep ratchetting due to the creep fatigue interaction. A series of crucial parameters for crack initiation assessment can be identified, such as the start of dwell stress, the creep strain, and the total strain range. A comparison between the ASME NH and R5 is proposed, and the principal differences in calculating the aforementioned parameters are outlined. The linear matching method (LMM) framework is also presented and reviewed, as a direct method capable of calculating these parameters and assessing also the steady state cycle response due to creep and cyclic plasticity interaction. Two numerical examples are presented, the first one is a cruciform weldment subjected to cyclic bending moment and uniform high temperature with different dwell times. The second numerical example considers creep fatigue response on a long fiber reinforced metal matrix composite (MMC), which is subjected to a cycling uniform thermal field and a constant transverse mechanical load. All the results demonstrate that the LMM is capable of providing accurate solutions, and also relaxing the conservatisms of the design codes. Furthermore, as a direct method, it is more efficient than standard inelastic incremental finite element analysis.

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“…According to [9,10] the quantitẏ w = ε may also be called the dissipated power. An expression for cavity growth was derived by Hull and Rimmer [32] and following the general procedure of Spindler [7,[34][35][36][37][38] a derivation for energy density exhaustion can be derived. It is noted that this derivation does not include a cavity nucleation term, however, a stress term is inherent within the formulation due to the use of strain energy.…”

Section: Strain Energy Density Exhaustionmentioning

confidence: 99%

“…Similar to the concepts of Spindler [7,[34][35][36][37][38], Eq. (11) can be represented as a function of creep damage for a dwell period as:…”

Section: Strain Energy Density Exhaustionmentioning

confidence: 99%