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Record W2317852005 · doi:10.1061/40771(169)9

NorSand: Features, Calibration and Use

2005· article· en· W2317852005 on OpenAlex
M. G. Jefferies, Dawn Shuttle

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicSoil, Finite Element Methods
Canadian institutionsUniversity of British Columbia
Fundersnot available
KeywordsGeomechanicsComputer sciencePlane stressHardening (computing)Finite element methodCalibrationSource codeGeotechnical engineeringAlgorithmStructural engineeringGeologyEngineeringMathematicsStatisticsMaterials scienceProgramming language

Abstract

fetched live from OpenAlex

NorSand is a generalized critical state model for soil based on the state parameter ∴ and incorporating familiar ideas in geomechanics, some of which date back more than a century. NorSand has associated plasticity but dilates similarly to actual soil through the introduction of limited hardening. Limited hardening causes yield in unloading, replicating observed soil behavior with second order detail. Principal stress rotation always softens NorSand, realistically representing cyclic loading effects. NorSand is a sparse model with just eight soil properties required to capture these many aspects of soil behavior over a wide range of density and confining stress. It has been validated over a range of conditions, including the practically important case of plane strain. The paper provides an introduction to NorSand, describing the idealizations and illustrating model performance/ validation. Determining soil properties and ∴ is discussed. Finally, implementing NorSand within finite element codes is reviewed. A spreadsheet with VBA open source code implementation of NorSand for common laboratory tests can be downloaded from the UBC website.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Other design · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.621
Threshold uncertainty score0.202

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.016
GPT teacher head0.246
Teacher spread0.230 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Quick stats

Citations32
Published2005
Admission routes1
Has abstractyes

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