105 lines
2.3 KiB
JSON
105 lines
2.3 KiB
JSON
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{
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"title": "Torque Ledger: Preload Integrity Protocol",
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"author": "Alex Carter",
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"version": "1.0",
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"date": "2026-07-18",
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"unit_system": {
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"primary": "SI",
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"imperial_fallback": true
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},
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"material_matrix": [
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{
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"standard": "ISO 898-1",
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"grade": "8.8",
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"min_tensile_MPa": 800,
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"proof_load_MPa": 640,
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"use_case": "General structural"
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},
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{
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"standard": "ISO 898-1",
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"grade": "10.9",
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"min_tensile_MPa": 1040,
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"proof_load_MPa": 900,
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"use_case": "High-load frame"
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},
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{
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"standard": "SAE J429",
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"grade": "Grade 5",
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"min_tensile_MPa": 827,
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"proof_load_MPa": 655,
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"use_case": "Mixed alloy steel"
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},
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{
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"standard": "SAE J429",
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"grade": "Grade 8",
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"min_tensile_MPa": 1034,
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"proof_load_MPa": 827,
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"use_case": "Aerospace interface"
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},
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{
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"standard": "ASTM A36",
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"grade": "-",
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"min_tensile_MPa": 475,
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"proof_load_MPa": 250,
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"use_case": "Base plate weld"
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}
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],
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"torque_table_metric": [
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{
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"diameter": "M6",
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"pitch_mm": 1.0,
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"grade_88_Nm": 10.2,
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"grade_109_Nm": 14.8,
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"joint_type": "Panel mount"
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},
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{
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"diameter": "M8",
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"pitch_mm": 1.25,
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"grade_88_Nm": 28.5,
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"grade_109_Nm": 41.2,
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"joint_type": "Rib attachment"
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},
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{
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"diameter": "M10",
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"pitch_mm": 1.5,
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"grade_88_Nm": 62.4,
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"grade_109_Nm": 90.1,
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"joint_type": "Frame node"
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},
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{
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"diameter": "M12",
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"pitch_mm": 1.75,
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"grade_88_Nm": 118.0,
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"grade_109_Nm": 170.5,
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"joint_type": "Hull ring"
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},
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{
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"diameter": "M16",
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"pitch_mm": 2.0,
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"grade_88_Nm": 295.0,
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"grade_109_Nm": 426.0,
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"joint_type": "Dome keystone"
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}
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],
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"protocol": {
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"sequence": "three_pass",
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"pass_targets_percent": [30, 70, 100],
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"hold_time_seconds": 3,
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"friction_coefficient_default": 0.15,
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"preload_target_percent_proof": 75,
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"star_pattern_required_for_flanges_bolts": 4
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},
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"sources": [
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{
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"name": "ISO 80000-4:2006",
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"type": "standard",
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"url": "https://4ort.xyz/entity/torque"
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},
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{
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"name": "Wikidata Q48103",
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"type": "knowledge_graph",
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"url": "https://www.wikidata.org/wiki/Q48103"
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}
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]
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}
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