A synergistic creep fatigue failure model damage (case of the alloy Z5NCTA at 550°C)

Gharad, Abdellah El; Zedira, Hamma; Azari, Z.; Pluvinage, G.

doi:10.1016/j.engfracmech.2005.10.008

Cited by 5 publications

(3 citation statements)

References 5 publications

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“…The cyclic properties of the material allowing for the identification of susceptibility to hardening or softening are described with the following formula (e.g., [ 53 , 54 ]):

where σ a is the stress amplitude;

is the exponent of plastic hardening;

is a material parameter.…”

Section: Resultsmentioning

confidence: 99%

The Effect of Dynamic Recrystallization on Monotonic and Cyclic Behaviour of Al-Cu-Mg Alloy

2018

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The paper presents an investigation that was conducted to determine the possibility of the occurrence of the process of dynamic recrystallization in 2024 alloy during monotonic tensile and creep tests at the elevated temperatures of 100 °C, 200 °C, and 300 °C. As-extruded material was subjected to creep process with constant force at elevated temperatures, until two varying degrees of deformation were reached. After cooling at ambient temperature, the pre-deformed material was subjected to monotonic and fatigue tests as well as metallographic analysis. The process of dynamic recrystallization was determined in monotonic tests to occur at low strain rate (0.0015/s) only at the temperature of 300 °C. However, in the creep tests, this process occurred with varying efficiency, both during creep at 200 °C and 300 °C. Dynamic recrystallization was indicated to have a significant influence on the monotonic and cyclic properties of the material.

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“…The cyclic properties of the material allowing for the identification of susceptibility to hardening or softening are described with the following formula (e.g., [ 53 , 54 ]):

where σ a is the stress amplitude;

is the exponent of plastic hardening;

is a material parameter.…”

Section: Resultsmentioning

confidence: 99%

The Effect of Dynamic Recrystallization on Monotonic and Cyclic Behaviour of Al-Cu-Mg Alloy

2018

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“…Although different defects in a material cannot be added directly, according to the definition of effective stress in Damage Mechanics, the decrement of effective area made by different defects can be added [4][5][6][7][8][9][10][11]. If it is assumed that (3) and (4) can be written as Postulating the dissipation potential consists of three parts,…”

Section: Damage Theory Of Fatigue-creep Interactionmentioning

confidence: 99%

Investigation on fatigue-creep interaction damage model for solder

Liu

Yan

2008

2008 International Conference on Electronic Packaging Technology &Amp; High Density Packaging

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It is well known, reliability and workability are the more important issues in the field of chip size package (CSP). Creep and fatigue behaviors are the main loads of the solder joints, the reliability of which should take account of those two main loads. Based on the theory of continuum damage mechanics (CDM), this paper focuses on damage evolution of interaction between the fatigue and creep. A new damage model of fatigue-creep interaction has been developed. And the new fatigue-creep interaction damage model in this paper does not require the simple fatigue model and simple creep model.

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“…The linear damage cumulative theory is used in the case of variable amplitude loading that may result in obvious errors because the effects of the loading sequence cannot be considered with this theory. Thus, some non-linear cumulative damage models are proposed on the basis of continuum damage mechanics for uniaxial fatigue [1,2]. However, research on how to obtain a multiaxial fatigue cumulative damage model for this aspect are very few and lacks experimental verification [3].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear cumulative damage model for multiaxial fatigue

Shang

Deng

Yan

2006

Front. Mech. Eng. China

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On the basis of the continuum fatigue damage theory, a nonlinear uniaxial fatigue cumulative damage model is first proposed. In order to describe multiaxial fatigue damage characteristics, a nonlinear multiaxial fatigue cumulative damage model is developed based on the critical plane approach. The proposed model can consider the multiaxial fatigue limit, mean hydrostatic pressure and the unseparated characteristic for the damage variables and loading parameters. The recurrence formula of fatigue damage model was derived under multilevel loading, which is used to predict multiaxial fatigue life. The results showed that the proposed nonlinear multiaxial fatigue cumulative damage model is better than Miner's rule.

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A synergistic creep fatigue failure model damage (case of the alloy Z5NCTA at 550°C)

Cited by 5 publications

References 5 publications

The Effect of Dynamic Recrystallization on Monotonic and Cyclic Behaviour of Al-Cu-Mg Alloy

The Effect of Dynamic Recrystallization on Monotonic and Cyclic Behaviour of Al-Cu-Mg Alloy

Investigation on fatigue-creep interaction damage model for solder

Nonlinear cumulative damage model for multiaxial fatigue

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