{"id":"W4392481630","doi":"10.1061/ijgnai.gmeng-9151","title":"A New Rock Brittleness Index Based on Crack Initiation and Crack Damage Stress Thresholds","year":2024,"lang":"en","type":"article","venue":"International Journal of Geomechanics","topic":"Rock Mechanics and Modeling","field":"Engineering","cited_by":15,"is_retracted":false,"has_abstract":true,"ca_institutions":"SNC-Lavalin (Canada)","funders":"","keywords":"Brittleness; Index (typography); Geotechnical engineering; Stress (linguistics); Crack closure; Geology; Materials science; Structural engineering; Forensic engineering; Fracture mechanics; Composite material; Engineering; Computer science","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0002106846,0.0001466047,0.0001508473,0.0003860373,0.00002995251,0.0002362111,0.0002568917,0.00009888029,0.00008718019],"category_scores_gemma":[0.00003829452,0.0001433536,0.00008648147,0.0001101806,0.000001677312,0.0003439973,0.00004350065,0.0003311806,0.00001028414],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.000118025,"about_ca_system_score_gemma":0.0001014495,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.000007577655,"about_ca_topic_score_gemma":0.00001159798,"domain_scores_codex":[0.998826,0.00001252117,0.0003656116,0.0001288114,0.0005263486,0.0001407074],"domain_scores_gemma":[0.9994436,0.00007512813,0.0000761353,0.00009416983,0.0001994951,0.0001115015],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"simulation_or_modeling","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.00006692361,0.00003477027,0.00005477631,0.00007393347,0.0001619074,0.0002311866,0.0001572852,0.9538691,0.003947421,0.00641995,0.001092059,0.03389071],"study_design_scores_gemma":[0.0004608971,0.00008400858,0.00004632965,0.0005282974,0.00002284854,0.00007743148,0.00003860176,0.9844097,0.003671238,0.007442285,0.003075218,0.0001431699],"study_design_candidate":"simulation_or_modeling","study_design_consensus":"simulation_or_modeling","genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.09245892,0.0006857758,0.9028675,0.0003903796,0.003156225,0.0000725138,0.00003615013,0.00006752751,0.0002650131],"genre_scores_gemma":[0.9978716,0.0004518259,0.0007844757,0.0001557546,0.00063281,0.000002305734,0.00001158985,0.00003965577,0.0000500277],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.9054126,"threshold_uncertainty_score":0.5845788,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01100871912680741,"score_gpt":0.2444771695288271,"score_spread":0.2334684504020197,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}