Optimal orientation of fibre composites for strength based on Hashin’s criteria optimality conditions
Sign Up to like & getrecommendations! Published in 2020 at "Structural and Multidisciplinary Optimization"
DOI: 10.1007/s00158-019-02462-w
Abstract: The Hashin’s strength criteria are usually employed in first ply failure and damage-onset analysis of fibre-reinforced composites. This work presents optimality conditions of local material orientations for these criteria, in terms of principal stresses and… read more here.
Keywords: principal stress; strength; optimality conditions; fibre ... See more keywords
Exploring the critical state properties and major principal stress rotation of sand in direct shear test using the distinct element method
Sign Up to like & getrecommendations! Published in 2018 at "Granular Matter"
DOI: 10.1007/s10035-018-0796-z
Abstract: This paper provides insights into the critical state properties and major principal stress rotation of sands in direct shear tests using the distinct element method (DEM), in which a three dimensional contact model considering rolling… read more here.
Keywords: principal stress; major principal; critical state; rotation ... See more keywords
Determination of initial stress state and rock mass deformation modulus at Lavarak HEPP by back analysis using ant colony optimization and multivariable regression analysis
Sign Up to like & getrecommendations! Published in 2020 at "Bulletin of Engineering Geology and the Environment"
DOI: 10.1007/s10064-020-01936-2
Abstract: During the design and construction of a project, determination of geomechanical parameters is a key factor for its success. Back analysis is an appropriate method to reduce in situ and field measurements during site investigation… read more here.
Keywords: principal stress; analysis; deformation modulus; back analysis ... See more keywords
Effect of initial minimum principal stress and unloading rate on the spalling and rockburst of marble: a true triaxial experiment investigation
Sign Up to like & getrecommendations! Published in 2020 at "Bulletin of Engineering Geology and the Environment"
DOI: 10.1007/s10064-020-01995-5
Abstract: Hard rock often performs as brittle failures, such as cracking, spalling, and rockburst, induced by excavation in deep underground engineering. To understand the effect of the minimum principal stress and unloading rate on the spalling… read more here.
Keywords: principal stress; unloading rate; minimum principal; initial minimum ... See more keywords
Cyclic degradation and non-coaxiality of soft clay subjected to pure rotation of principal stress directions
Sign Up to like & getrecommendations! Published in 2018 at "Acta Geotechnica"
DOI: 10.1007/s11440-017-0567-8
Abstract: Abstract Foundation soils are often under non-proportional cyclic loadings. The deformation behaviour and the mechanism of non-coaxiality under continuous pure principal stress rotation for clays are not clearly investigated up to now. In order to… read more here.
Keywords: principal stress; soft clay; rotation; stress ... See more keywords
Influence of initial state and intermediate principal stress on undrained behavior of soft clay during pure principal stress rotation
Sign Up to like & getrecommendations! Published in 2018 at "Acta Geotechnica"
DOI: 10.1007/s11440-018-0735-5
Abstract: It is important to be fully aware of the dynamic characteristics of saturated soft clays under complex loading conditions in practice. In this paper, a series of undrained tests for soft clay consolidated with different… read more here.
Keywords: principal stress; intermediate principal; soft clay; stress ... See more keywords
Non-coaxiality of soft clay generated by principal stress rotation under high-speed train loading
Sign Up to like & getrecommendations! Published in 2021 at "Acta Geotechnica"
DOI: 10.1007/s11440-021-01242-5
Abstract: Plenty of geomechanics tests and theories have confirmed the existence of non-coaxiality while soil is subjected to principal stress rotation. This paper investigated the influence of one particular principal stress path, which is a ‘heart-shape’… read more here.
Keywords: non coaxiality; stress path; coaxiality; principal stress ... See more keywords
Effect of the intermediate principal stress on hydraulic fracturing in granite: an experimental study
Sign Up to like & getrecommendations! Published in 2019 at "Environmental Earth Sciences"
DOI: 10.1007/s12665-019-8760-8
Abstract: The fracturing behavior of hard rock under fluid pressure is affected by maximum, minimum, and intermediate principal stress. To investigate the effect of the intermediate principal stress on the hydraulic fracturing behavior, including the fracturing… read more here.
Keywords: principal stress; intermediate principal; hydraulic fracturing; pressure ... See more keywords
Undrained cyclic behavior of soft marine clay involved combined principal stress rotation
Sign Up to like & getrecommendations! Published in 2018 at "Applied Ocean Research"
DOI: 10.1016/j.apor.2018.10.010
Abstract: Abstract In real-life costal engineering problems, the foundations are subjected to complex loads as increase in both deviator stress and major principal stress direction simultaneously. To investigate undrained deformation behavior and pore pressure accumulation of… read more here.
Keywords: principal stress; major principal; stress; clay ... See more keywords
Generation of filament-winding paths for complex axisymmetric shapes based on the principal stress field
Sign Up to like & getrecommendations! Published in 2017 at "Composite Structures"
DOI: 10.1016/j.compstruct.2016.11.022
Abstract: Abstract Filament winding is a process in which glass or carbon fibers are wound around a mandrel to form fiber-reinforced structures of a desired shape. The strength of the fiber-reinforced part is maximized when the… read more here.
Keywords: principal stress; generation filament; filament winding; winding paths ... See more keywords
Drained responses of granular soil sheared under inclined principal stress axes: Impact of sample preparation
Sign Up to like & getrecommendations! Published in 2018 at "Engineering Geology"
DOI: 10.1016/j.enggeo.2018.05.002
Abstract: Abstract Previous studies have found that the sample preparation method and the resulting sand fabric have significant effect on sand behavior. In the present study, sand specimens were prepared in the laboratory by dry deposition… read more here.
Keywords: principal stress; stress axes; inclined principal; sample preparation ... See more keywords