Multiscale fatigue life prediction model for heterogeneous materials

Fish, Jacob; Bailakanavar, M.; Powers, Lynn M.; Cook, T. S.

doi:10.1002/nme.4307

Cited by 44 publications

(20 citation statements)

References 37 publications

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“…Since cycle‐by‐cycle simulation is difficult to be used for high‐cycle fatigue damage simulation of large‐scale engineering structures, the “block cycle jump” technique is often used to overcome the computational cost . In the “block cycle jump” algorithm, the rate of damage growth is computed at each spatial location after a certain number of loading cycle.…”

Section: Auto‐adaptive Multiblock Cycle Jump Algorithmmentioning

confidence: 99%

“…There are several fatigue damage models available. S‐N curves are the most commonly‐used model in practice, which provide the relationship of fatigue life and cyclic stress/strain . More recently, the fatigue damage models based on experiments and CDM have been advocated in engineering application to overcome some shortages of S‐N methods.…”

Section: Governing Equationsmentioning

confidence: 99%

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Auto‐adaptive multiblock cycle jump algorithm for fatigue damage simulation of long‐span steel bridges

Sun

Zhu

et al. 2018

Fatigue Fract Eng Mat Struct

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An algorithm is developed for fatigue damage evolution simulation of long‐span steel bridges based on continuum damage mechanics (CDM) in this study. The progressive fatigue damage from local component damage evolution to entire structural failure is simulated with nonstandard varying block cycle length, which is automatically obtained during computation to speed up fatigue evolution simulation without user intervention. In this paper, progressive fatigue damage evolution of the Stonecutters cable‐stayed bridge due to vehicle loading is simulated by using the proposed algorithm and the bridge model. It shows that the algorithm is effective, and it can improve the computational efficiency of fatigue damage simulation of a large‐scale steel bridge.

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Section: Auto‐adaptive Multiblock Cycle Jump Algorithmmentioning

confidence: 99%

Section: Governing Equationsmentioning

confidence: 99%

Auto‐adaptive multiblock cycle jump algorithm for fatigue damage simulation of long‐span steel bridges

Sun

Zhu

et al. 2018

Fatigue Fract Eng Mat Struct

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“…Simulations of components in inelastic range for many cycles of loading is time consuming, if ever possible. For an efficient analysis it is convenient to introduce two or more time scales Altenbach et al (2000a);Devulder et al (2010);Fish et al (2012). A "slow or macroscopic" time scale can be used to capture the global cyclic behavior like cyclic hardening, softening or creep ratcheting.…”

Section: Temporal Scale Effectsmentioning

confidence: 99%

Analysis of Inelastic Behavior for High Temperature Materials and Structures

Naumenko

Altenbach

2015

Advanced Structured Materials

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This review provides a current status in modeling and analysis of structures for high-temperature applications. Basic features of inelastic behavior of heat resistant alloys are discussed. Typical responses for stationary and varying loading and temperature are presented and classified. Microstructural features and microstructural changes in the course of inelastic deformation at high temperature are discussed. The state of the art on material modeling and structural analysis in the inelastic range at high temperature is resented.Keywords Creep · Low cycle fatigue · Damage mechanics · Length scales · Temporal scales · Structural analysis IntroductionThe aim of this contribution is to give an overview of experimental and theoretical approaches to analyze the behavior of materials and structures subjected to mechanical loading and "high-temperature" environment. The definition of "hightemperature" materials and "high-temperature" structures can be related to the value of the homologous temperature, that is T /T m , where T is the absolute temperature and T m is the melting point of the considered material. Materials that can be efficiently used within the temperature range 0.3 < T /T m < 0.7 are called hightemperature materials. Examples include heat resistant steels, nickel-bases alloys, age-hardened aluminum alloys, cast iron materials and metal matrix composites. Structures that operate in the temperature range 0.3 < T /T m < 0.7 over a long period of time are called high-temperature structures. Examples include turbine

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“…Dual‐time scale algorithms have been applied to a finite element (FE) modeling of viscoplastic deformation in a polycrystalline aggregate and in polyethylene . The performance of such algorithms for continuum damage modeling of fatigue is demonstrated in the works of Oskay and Fish() and Fish et al()…”

Section: Introductionmentioning

confidence: 99%

A Fourier transformation‐based method for gradient‐enhanced modeling of fatigue

Kindrachuk

Titscher

Unger

2018

Numerical Meth Engineering

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Summary A key limitation of the most constitutive models that reproduce a degradation of quasi‐brittle materials is that they generally do not address issues related to fatigue. One reason is the huge computational costs to resolve each load cycle on the structural level. The goal of this paper is the development of a temporal integration scheme, which significantly increases the computational efficiency of the finite element method in comparison to conventional temporal integrations. The essential constituent of the fatigue model is an implicit gradient‐enhanced formulation of the damage rate. The evolution of the field variables is computed as a multiscale Fourier series in time. On a microchronological scale attributed to single cycles, the initial boundary value problem is approximated by linear BVPs with respect to the Fourier coefficients. Using the adaptive cycle jump concept, the obtained damage rates are transferred to a coarser macrochronological scale associated with the duration of material deterioration. The performance of the developed method is hence improved due to an efficient numerical treatment of the microchronological problem in combination with the cycle jump technique on the macrochronological scale. Validation examples demonstrate the convergence of the obtained solutions to the reference simulations while significantly reducing the computational costs.

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Multiscale fatigue life prediction model for heterogeneous materials

Cited by 44 publications

References 37 publications

Auto‐adaptive multiblock cycle jump algorithm for fatigue damage simulation of long‐span steel bridges

Auto‐adaptive multiblock cycle jump algorithm for fatigue damage simulation of long‐span steel bridges

Analysis of Inelastic Behavior for High Temperature Materials and Structures

A Fourier transformation‐based method for gradient‐enhanced modeling of fatigue

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