Ablative config

src/engine/knowledgebaseData.js

@@ -752,3 +752,127 @@ export const PROPELLANTS = [
       notes: 'Catalytic decomposition; vacuum Isp',
     })),
 ]
+
+// ── Ablative liner materials ──────────────────────────────────────────────────────
+
+export const ABLATIVE_MATERIALS = [
+  {
+    id: 'carbon_phenolic',
+    name: 'Carbon-Phenolic',
+    composition: 'Carbon fiber reinforced phenolic resin',
+    description:
+      'Carbon-phenolic is a high-performance ablative material widely used in nozzle throats and combustion chamber walls. It combines excellent thermal stability with good mechanical properties and has proven heritage in operational rocket engines. The phenolic matrix char-yields ~55%, providing a protective char layer that insulates the underlying structure.',
+    erosionRate: 0.15,
+    erosionRateRange: [0.05, 0.30],
+    maxTemp: 3500,
+    density: 1400,
+    thermalConductivity: 3.5,
+    charYield: 0.55,
+    pressureExponent: 0.35,
+    applications: ['nozzle throat', 'combustion chamber wall'],
+    notes: 'Proven material for high-pressure engines (6.9 MPa reference). Good ablation resistance; expensive relative to alternatives.',
+    refPressure: 6.9e6,
+  },
+  {
+    id: 'silica_phenolic',
+    name: 'Silica-Phenolic',
+    composition: 'Silica-filled phenolic resin',
+    description:
+      'Silica-phenolic offers moderate performance with good thermal properties and lower cost than carbon-phenolic. The silica filler improves thermal conductivity and provides additional structural support. Suitable for moderate-temperature applications and less demanding environments.',
+    erosionRate: 0.25,
+    erosionRateRange: [0.15, 0.40],
+    maxTemp: 3200,
+    density: 1350,
+    thermalConductivity: 2.5,
+    charYield: 0.50,
+    pressureExponent: 0.38,
+    applications: ['nozzle throat', 'chamber sections'],
+    notes: 'Lower performance than carbon-phenolic but more cost-effective. Good for educational and amateur applications.',
+    refPressure: 6.9e6,
+  },
+  {
+    id: 'graphite_phenolic',
+    name: 'Graphite-Phenolic',
+    composition: 'Graphite-filled phenolic resin',
+    description:
+      'Graphite-phenolic combines the strength of phenolic matrix with excellent thermal conductivity from graphite fillers. It provides superior performance in high heat flux regions and is ideal for engines with extreme thermal conditions. Excellent char stability and low ablation rates.',
+    erosionRate: 0.10,
+    erosionRateRange: [0.05, 0.20],
+    maxTemp: 3600,
+    density: 1450,
+    thermalConductivity: 8.0,
+    charYield: 0.58,
+    pressureExponent: 0.33,
+    applications: ['nozzle throat (high heat flux)', 'combustion chamber'],
+    notes: 'Premium material for highest-performance applications. Superior thermal properties justify higher cost.',
+    refPressure: 6.9e6,
+  },
+  {
+    id: 'epdm',
+    name: 'EPDM Rubber',
+    composition: 'Ethylene propylene diene monomer polymer',
+    description:
+      'EPDM is a flexible elastomeric ablator suitable for low-pressure engines and non-critical applications. It provides good insulation properties and flexibility, reducing structural loads. Inexpensive and easy to manufacture in various geometries.',
+    erosionRate: 0.50,
+    erosionRateRange: [0.30, 0.80],
+    maxTemp: 2200,
+    density: 920,
+    thermalConductivity: 0.25,
+    charYield: 0.40,
+    pressureExponent: 0.50,
+    applications: ['low-pressure chamber', 'insulation layer'],
+    notes: 'Low cost and simple manufacturing. Limited to low-pressure (<1 MPa) applications due to high erosion rates.',
+    refPressure: 0.5e6,
+  },
+  {
+    id: 'cork_composite',
+    name: 'Cork Composite',
+    composition: 'Cork particles in polymer binder',
+    description:
+      'Cork-based composites are the lowest-cost ablative option, popular in amateur rocketry. Cork provides excellent insulation and low density. Performance is modest but adequate for low-pressure, short-duration burns.',
+    erosionRate: 0.90,
+    erosionRateRange: [0.50, 1.50],
+    maxTemp: 1800,
+    density: 700,
+    thermalConductivity: 0.15,
+    charYield: 0.35,
+    pressureExponent: 0.52,
+    applications: ['amateur engines', 'low-pressure chambers'],
+    notes: 'Extremely low cost and accessibility. Suitable only for educational and amateur applications with short burn times.',
+    refPressure: 0.3e6,
+  },
+  {
+    id: 'silicone_rubber',
+    name: 'Silicone Rubber',
+    composition: 'Siloxane polymer',
+    description:
+      'Silicone rubber provides flexibility and excellent low-pressure performance with good char stability. It remains serviceable over a wide temperature range and is less brittle than phenolics. Ideal for flexible throat liners and low-pressure applications.',
+    erosionRate: 0.65,
+    erosionRateRange: [0.40, 1.00],
+    maxTemp: 2400,
+    density: 1100,
+    thermalConductivity: 0.20,
+    charYield: 0.45,
+    pressureExponent: 0.48,
+    applications: ['flexible throat', 'low-pressure chamber'],
+    notes: 'Good flexibility reduces structural stress. Higher erosion rates limit use to low-moderate pressure engines.',
+    refPressure: 0.5e6,
+  },
+  {
+    id: 'pica',
+    name: 'PICA',
+    composition: 'Phenolic Impregnated Carbon Ablator',
+    description:
+      'PICA (Phenolic Impregnated Carbon Ablator) is an ultra-high-performance ablative material with exceptionally low erosion rates. Developed for spacecraft thermal protection and advanced rocket engines, it combines carbon fibre structure with phenolic impregnation. Extremely expensive but unsurpassed in performance.',
+    erosionRate: 0.06,
+    erosionRateRange: [0.03, 0.12],
+    maxTemp: 3800,
+    density: 1500,
+    thermalConductivity: 5.5,
+    charYield: 0.60,
+    pressureExponent: 0.30,
+    applications: ['nozzle throat (ultra-high performance)', 'chamber (extreme conditions)'],
+    notes: 'Premium aerospace-grade material with proven heritage in advanced engines. Cost is very high; used only when performance demands justify expense.',
+    refPressure: 6.9e6,
+  },
+]