The evolution of brittle and ductile structures at the surface of a partly debris‐covered, rapidly thinning and slowly moving glacier in 1998–2012 (Pasterze Glacier, Austria)
Sign Up to like & getrecommendations! Published in 2018 at "Earth Surface Processes and Landforms"
DOI: 10.1002/esp.4552
Abstract: Many glaciers in alpine regions are currently rapidly receding and thinning at historically unobserved rates causing changes in the velocity field and in normal and shear stresses affecting the surface expression of structures within the… read more here.
Keywords: brittle ductile; surface; structures surface; ductile structures ... See more keywords
Initiation and Evolution of a Network of Deformation Bands in a Rock Analogue Material at Brittle–Ductile Transition
Sign Up to like & getrecommendations! Published in 2018 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-018-1641-8
Abstract: We investigate the deformation localization at brittle–ductile transition in axisymmetric compression tests of rock analogue material GRAM1 made of bonded rigid particles. This transition in rocks (as well as in GRAM1) is recognized by the… read more here.
Keywords: brittle ductile; network; transition; deformation ... See more keywords
Tailoring the Properties of Calcium Aluminate Macro-Defect-Free Cements: From Brittle to Ductile Behavior
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Materials Engineering and Performance"
DOI: 10.1007/s11665-019-04430-3
Abstract: Cementitious macro-defect-free (MDF) materials can be obtained processing a mixture of a water-soluble polymer, namely polyvinyl alcohol (PVA) and the calcium aluminate cement. Based on process techniques typical of plastics, the MDF products can be… read more here.
Keywords: brittle ductile; macro defect; defect free; water ... See more keywords
Chemical bonding effects on the brittle-to-ductile transition in metallic glasses
Sign Up to like & getrecommendations! Published in 2020 at "Acta Materialia"
DOI: 10.1016/j.actamat.2020.02.002
Abstract: Abstract The influence of composition and temperature on the tensile deformation behavior of amorphous PdSi metal-metalloid alloys is investigated using large-scale molecular dynamics simulations. A correlation between highly directional Si-Si bonds and the deformation mechanisms… read more here.
Keywords: brittle ductile; transition; bonding effects; chemical bonding ... See more keywords
Mechanism of brittle-to-ductile transition in tungsten under small-punch testing
Sign Up to like & getrecommendations! Published in 2021 at "Acta Materialia"
DOI: 10.1016/j.actamat.2021.117332
Abstract: Abstract Exceptional high brittle-to-ductile transition temperature (BDTT) is a critical issue that limits the application of tungsten as structural materials. The controlling factors in BDT have been the focus of debate in past decades. In… read more here.
Keywords: brittle ductile; temperature; transition; small punch ... See more keywords
Brittle-to-ductile transition in fracture of few-layered black phosphorus ribbons under uniaxial stretching
Sign Up to like & getrecommendations! Published in 2018 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2017.12.034
Abstract: Abstract Owing to excellent electrical properties, few-layered black phosphorene (BP) ribbons will be wide used in nano-electro-mechanical systems. Before acting as a component in the nanosystem, they should be fabricated successfully. During peeling, pulling or… read more here.
Keywords: brittle ductile; fracture layered; fracture; ductile transition ... See more keywords
A study of relationship between dislocation configuration of nanocrack and brittle-ductile mode of fracture: Atomistic modeling
Sign Up to like & getrecommendations! Published in 2020 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2019.109413
Abstract: Abstract We present a nanoscopic evolution process of nucleation-extension of cracks of samples with different orientations in two-dimensional lattice by using the phase field crystal, and study the mechanism of the effect of the dislocation… read more here.
Keywords: brittle ductile; extension; dislocation configuration; crack ... See more keywords
Experimental and elastoplastic model investigation on brittle-ductile transition and hydro-mechanical behaviors of cement mortar
Sign Up to like & getrecommendations! Published in 2019 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2019.07.046
Abstract: Abstract In this study, a series of tests of cement mortar were conducted. The aim is to investigate brittle-ductile transition and hydromechanical behaviors of cement mortar. These results indicate that cement mortar is brittle failure… read more here.
Keywords: brittle ductile; mortar; cement mortar; behaviors cement ... See more keywords
A variational approach to the phase field modeling of brittle and ductile fracture
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Mechanical Sciences"
DOI: 10.1016/j.ijmecsci.2018.05.009
Abstract: Abstract The modeling of the post-critical behavior of materials is still a scientific challenge. This is especially true when dealing with materials that undergo complex behavior, in which several mechanisms are combined. This physical complexity… read more here.
Keywords: brittle ductile; fracture; phase field; ductile fracture ... See more keywords
Experimental investigation and micromechanical modeling of the brittle-ductile transition behaviors in low-porosity sandstone
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Mechanical Sciences"
DOI: 10.1016/j.ijmecsci.2020.105654
Abstract: Abstract This paper presents a unified experimental and numerical investigation on mechanical behaviors of a sandstone with brittle-ductile transition. A series of triaxial compression tests are performed at room temperature under a wide range of… read more here.
Keywords: brittle ductile; ductile transition; investigation micromechanical; experimental investigation ... See more keywords
Brittle-ductile failure transition in geomaterials modeled by a modified phase-field method with a varying damage-driving energy coefficient
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Plasticity"
DOI: 10.1016/j.ijplas.2020.102836
Abstract: Abstract With elevated confining pressure and low temperatures, geomaterials may exhibit brittle-to-ductile failure transition due to increased cataclastic flow. In this work, we propose a modified phase-field damage model to capture this transition, wherein a… read more here.
Keywords: brittle ductile; ductile failure; model; failure transition ... See more keywords