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   Articles with "crack initiation" as a keyword



Fatigue Behavior of Additively Manufactured IN718 with Columnar Grains

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recommendations! Published in 2020 at "Advanced Engineering Materials"

DOI: 10.1002/adem.202001031

Abstract: Fatigue failure of polycrystalline materials is often dominated by crack initiation processes, which are strongly influenced by salient features existing in the microstructure. Herein, a crystal plasticity framework based on the finite element method is… read more here.

Keywords: fatigue behavior; crack nucleation; columnar; fatigue crack ... See more keywords

Modeling the high‐cycle fatigue crack initiation in short fiber reinforced polymers with notches

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recommendations! Published in 2024 at "Polymer Composites"

DOI: 10.1002/pc.28322

Abstract: In this work, a new approach is proposed for predicting the life to crack initiation in Short Fiber Reinforced Polymers (SFRPs) under cyclic loadings in the presence of notches, cut‐outs and stress concentrations. A multiscale… read more here.

Keywords: crack; initiation short; crack initiation; short fiber ... See more keywords

Crystal‐Scale Fatigue Damage Evolution and Predictive Modeling of Carbide‐Triggered Crack Initiation in High‐Strength Steel

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recommendations! Published in 2025 at "steel research international"

DOI: 10.1002/srin.202500369

Abstract: Fatigue failure in high‐strength gear steels under cyclic loading is critically influenced by microstructural inhomogeneities. This study combines crystal plasticity finite element (CPFE) simulations, ultrasonic fatigue testing, and electron microscopy to investigate carbide‐induced crack initiation… read more here.

Keywords: fatigue; crack initiation; crystal scale; high strength ... See more keywords
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Identifying Accurate Crack Initiation and Propagation Thresholds in Siliceous Siltstone and Limestone

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recommendations! Published in 2020 at "Rock Mechanics and Rock Engineering"

DOI: 10.1007/s00603-020-02277-y

Abstract: Deep buried tunnels often suffer brittle instability and failure during the excavation process under high geological stress conditions (Liu et al. 2018). During this process, the surrounding rocks partially begin to break with crack initiation… read more here.

Keywords: crack initiation; stress; failure; growth ... See more keywords

Multiscale crystal-plasticity phase field and extended finite element methods for fatigue crack initiation and propagation modeling

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recommendations! Published in 2019 at "International Journal of Fracture"

DOI: 10.1007/s10704-018-00339-5

Abstract: This paper presents a physics-based prediction of crack initiation at the microstructure level using the phase field (PF) model without finite element discretization, coupled with an efficient and accurate modeling of crack propagation at macro-scale… read more here.

Keywords: finite element; model; crack initiation; crack ... See more keywords

Predicting Crack Initiation of Solder Joints with Varying Sizes Under Bending

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recommendations! Published in 2019 at "Journal of Electronic Materials"

DOI: 10.1007/s11664-019-06989-y

Abstract: The critical strain energy release rate for crack initiation, Jci, was measured under mode I loading for SAC305 solder joints between two copper substrates. Fracture tests were performed using double cantilever beam specimens at a… read more here.

Keywords: solder joints; crack initiation; predicting crack; crack ... See more keywords

Investigation of fatigue crack initiation from a non-metallic inclusion via high energy x-ray diffraction microscopy

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recommendations! Published in 2017 at "Acta Materialia"

DOI: 10.1016/j.actamat.2017.07.027

Abstract: Abstract Crack initiation at inclusions is a dominant, unavoidable and life-limiting failure mechanism of important structural materials. Fatigue progresses in a complex manner to find the ‘weakest link’ in the microstructure, leading to crack nucleation.… read more here.

Keywords: stress; crack initiation; inclusion; microscopy ... See more keywords

Low-cycle fatigue crack initiation life of hull-notched plate considering short crack effect and accumulative plastic damage

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recommendations! Published in 2017 at "Applied Ocean Research"

DOI: 10.1016/j.apor.2017.08.003

Abstract: Abstract When studying the low-cycle fatigue crack initiation life of notched plates, the effects of fatigue short crack and accumulative plastic damage in the vicinity of the notch should be considered. The low-cycle fatigue crack… read more here.

Keywords: cycle fatigue; crack initiation; low cycle; crack ... See more keywords
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Impact of the initial crack volume on the intact behavior of a bonded particle model

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recommendations! Published in 2020 at "Computers and Geotechnics"

DOI: 10.1016/j.compgeo.2020.103764

Abstract: Abstract The flat-jointed (FJ) contact model implemented in the particle flow code resolves the long-standing issue of the code producing unrealistically low ratios of uniaxial compressive strength (UCS) to direct tensile strength. Despite the improvements… read more here.

Keywords: initial crack; crack initiation; model; particle ... See more keywords

Microscale based prediction of matrix crack initiation in UD composite plies subjected to multiaxial fatigue for all stress ratios and load levels

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recommendations! Published in 2017 at "Composites Science and Technology"

DOI: 10.1016/j.compscitech.2017.02.004

Abstract: Abstract A criterion is developed which predicts matrix fatigue crack initiation for Uni-Directional (UD) composite plies subjected to multiaxial fatigue load at all stress-ratio's: Tension-Tension, Compression-Compression and Tension-Compression. This research is based on physical observations… read more here.

Keywords: compression; initiation; crack initiation; tension ... See more keywords

Prediction of matrix crack initiation and evolution and their effect on the stiffness of laminates with off-axis plies under in-plane loading

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recommendations! Published in 2020 at "Composites Science and Technology"

DOI: 10.1016/j.compscitech.2020.108427

Abstract: Abstract A model is described which allows the exact calculation of stresses in a cracked ply under combined state of strain. Closed form expressions for the stresses in each ply are combined in an energy… read more here.

Keywords: stiffness; ply; crack initiation; matrix crack ... See more keywords