Articles with "crack" as a keyword



Synchrotron tomographic quantification of strain and fracture during simulated thermal maturation of an organic‐rich shale, UK Kimmeridge Clay

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Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2016jb013874

Abstract: Analyzing the development of fracture networks in shale is important to understand both hydrocarbon migration pathways within and from source rocks and the effectiveness of hydraulic stimulation upon shale reservoirs. Here we use time-resolved synchrotron… read more here.

Keywords: organic rich; maturation organic; clay; strain ... See more keywords

Stress-dependent permeability and wave dispersion in tight cracked rocks: Experimental validation of simple effective medium models

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Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2017jb014147

Abstract: We experimentally assess the impact of microstructure, pore fluid and frequency on wave velocity, wave dispersion and permeability in a thermally cracked Carrara marble under effective pressures up to 50 MPa. The cracked rock is… read more here.

Keywords: wave dispersion; dependent permeability; permeability; crack ... See more keywords

Simulation of Short Fatigue Crack Propagation in a 3D Experimental Microstructure

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Published in 2017 at "Advanced Engineering Materials"

DOI: 10.1002/adem.201600721

Abstract: A three dimensional simulation of short fatigue crack propagation in a polycrystalline microstructure using a crystal plasticity finite element model is carried out. The experimental microstructure which contains several hundreds grains, was obtained via diffraction… read more here.

Keywords: short fatigue; fatigue crack; crack; simulation short ... See more keywords

Self‐Healing Engineering Ceramics with Oxidation‐Induced Crack Repair

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Published in 2019 at "Advanced Engineering Materials"

DOI: 10.1002/adem.201901121

Abstract: Engineering ceramics capable of restoring damage‐induced surface cracking may achieve enhanced reliability and longer lifetime at high temperature applications compared with nonhealing ceramics. Selection of healing agents dispersed in ceramic matrix composites which upon oxidation… read more here.

Keywords: healing engineering; oxidation; engineering ceramics; engineering ... See more keywords

Fatigue Behavior of Additively Manufactured IN718 with Columnar Grains

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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

The Role of Extrusions and Intrusions in the Initiation and Intergranular Growth of Fatigue Cracks

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Published in 2024 at "Advanced Engineering Materials"

DOI: 10.1002/adem.202400313

Abstract: The role of extrusions and intrusions in the initiation and growth of intergranular fatigue cracks is studied by performing strain‐controlled fatigue experiments on polycrystalline copper and by analyzing the development of intergranular crack initiation and… read more here.

Keywords: fatigue; crack; extrusions intrusions; grain boundary ... See more keywords

Cyclic R‐Curve Measurements for Structural Metallic Alloys

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Published in 2024 at "Advanced Engineering Materials"

DOI: 10.1002/adem.202400447

Abstract: Fractures nucleated from defects and subjected to cyclic loading can experience propagation for a range of stress intensity factor ΔK well below the so‐called long crack threshold. This phenomenon is attributed to the development of… read more here.

Keywords: structural metallic; long crack; crack; metallic alloys ... See more keywords

Fatigue Crack Characteristics in Gradient Predeformed Pearlitic Steel under Multiaxial Loading

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Published in 2024 at "Advanced Engineering Materials"

DOI: 10.1002/adem.202400950

Abstract: Rolling contact fatigue of railway rails not only severely deforms the surface material near the rail head, but also induces an anisotropy in the mechanical behavior due to work hardening and alignment of the microstructure… read more here.

Keywords: steel; fatigue crack; material; crack ... See more keywords

X‐Ray Computed Tomography Quantifies Primary Phases and Reveals Crack Morphology in High‐Cycle Fatigue of Aluminum Alloy EN AW‐2618A

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Published in 2025 at "Advanced Engineering Materials"

DOI: 10.1002/adem.202500235

Abstract: Since the introduction of high‐strength aluminum alloys understanding their fatigue behavior is of high interest for the structural integrity of engineering components, in this context, the alloy EN AW‐2618A gains its high strength from both… read more here.

Keywords: crack; ray computed; computed tomography; primary phases ... See more keywords

A Soft Resistive Acoustic Sensor Based on Suspended Standing Nanowire Membranes with Point Crack Design

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Published in 2020 at "Advanced Functional Materials"

DOI: 10.1002/adfm.201910717

Abstract: An artificial basilar membrane (ABM) is an acoustic transducer that mimics the mechanical frequency selectivity of the real basilar membrane, which has the potential to revolutionize current cochlear implant technology. While such ABMs can be… read more here.

Keywords: point crack; nanowire; soft resistive; crack design ... See more keywords

Ultrasensitive and Breathable Hydrogel Fiber‐Based Strain Sensors Enabled by Customized Crack Design for Wireless Sign Language Recognition

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Published in 2024 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202416482

Abstract: Wearable strain sensors, capable of continuously detecting human movements, hold great application prospects in sign language gesture recognition to alleviate the daily communication barriers of the deaf and mute community. However, the unsatisfactory strain sensing… read more here.

Keywords: recognition; strain sensors; crack; language ... See more keywords