Synchrotron tomographic quantification of strain and fracture during simulated thermal maturation of an organic‐rich shale, UK Kimmeridge Clay
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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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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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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
A Soft Resistive Acoustic Sensor Based on Suspended Standing Nanowire Membranes with Point Crack Design
Sign Up to like & getrecommendations! 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
Extreme Toughening of Soft Materials with Liquid Metal.
Sign Up to like & getrecommendations! Published in 2018 at "Advanced materials"
DOI: 10.1002/adma.201706594
Abstract: Soft and tough materials are critical for engineering applications in medical devices, stretchable and wearable electronics, and soft robotics. Toughness in synthetic materials is mostly accomplished by increasing energy dissipation near the crack tip with… read more here.
Keywords: liquid metal; soft materials; energy; extreme toughening ... See more keywords
Recyclable, Healable, and Tough Ionogels Insensitive to Crack Propagation
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202203049
Abstract: Most gels and elastomers introduce sacrificial bonds in the covalent network to dissipate energy. However, long‐term cyclic loading caused irreversible fatigue damage and crack propagation cannot be prevented. Furthermore, because of the irreversible covalent crosslinked… read more here.
Keywords: crack; covalent network; healable tough; crack propagation ... See more keywords
Effect of porosity and crack on the thermoelectric properties of expanded graphite/carbon fiber reinforced cement‐based composites
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Energy Research"
DOI: 10.1002/er.5437
Abstract: Cement‐based composites is a promising type of structural material, which has prospective applications in relieving the urban heat island effect in summer and melted snow with low energy consumption. However, the major drawbacks of cement‐based… read more here.
Keywords: cement based; based composites; porosity; crack ... See more keywords
XFEM-based element subscale refinement for detailed representation of crack propagation in large-scale analyses
Sign Up to like & getrecommendations! Published in 2017 at "International Journal for Numerical Methods in Engineering"
DOI: 10.1002/nme.5367
Abstract: In the present paper, we address the delicate balance between computational efficiency and level of detailing at the modelling of ductile fracture in thin-walled structures. To represent the fine-scale nature of the ductile process, we… read more here.
Keywords: large scale; crack propagation; refinement; crack ... See more keywords
Stable 3D XFEM/vector level sets for non‐planar 3D crack propagation and comparison of enrichment schemes
Sign Up to like & getrecommendations! Published in 2018 at "International Journal for Numerical Methods in Engineering"
DOI: 10.1002/nme.5611
Abstract: Summary phane Bordas thanks funding provided by the European Research Council Starting Independent Research Grant (ERC Stg grant agreement No. 279578)“RealTCut towards real time multiscale simulation of cutting in non-linear materials with applications to surgical… read more here.
Keywords: xfem vector; crack propagation; stable xfem; vector level ... See more keywords