Shield — Early Validation Log

korvas Space Lab — Internal Validation Entry

This entry documents an early-stage segmented stress simulation for a single carbon-based shield candidate under modeled orbital environmental conditions. The purpose of this pass is to establish a conservative technical baseline for korvas Space Lab publication, using a structured engineering workflow.

Objective

Evaluate a single shield candidate under a segmented stress simulation designed for early-stage engineering review. This entry focuses on integrity retention, sector-level degradation behavior, and conservative interpretation under simulated mission conditions.

Method

A single shield input file was loaded, normalized, and validated before being processed through a segmented stress simulation. The model applies sector-level variation across thermal cycling, radiation degradation, micro-impact accumulation, and time-based fatigue. This assessment is an early-stage engineering model and should not be interpreted as a certified aerospace simulation.

Test Conditions

  • Mission duration: 8.0 years
  • Sector count: 12
  • Composition: C
  • Composition complexity: 1
  • Input mass: 13.81
  • Input durability: 39.01 years
  • Radiation input: 400.000 mSv/year
  • Impact input: 3e-06 per year
  • Temperature range: -200.0 C to 500.0 C
Durability figure showing mean shield integrity and lowest-sector integrity across the modeled 8-year mission window
Figure 1. Mission-duration integrity trend for the carbon-based shield candidate, showing mean shield integrity and lowest-sector integrity across the modeled 8-year mission window.

Key Observations

  • Mean shield integrity at the conservative public benchmark (5.0 years): 88.2% mean integrity retention
  • Mean shield integrity at mission end: 80.9% mean integrity retention
  • Lowest sector integrity at mission end: 78.1% lowest-sector integrity
  • Simulated localized impact events across the full run: 30 localized events
  • Sectors below 80% integrity at mission end: 3 sectors
Heatmap figure showing sector-by-sector degradation across the simulation timeline
Figure 2. Sector-by-sector degradation heatmap across the simulation timeline, showing distributed integrity loss under modeled stress conditions.
Final sector integrity figure comparing all 12 shield sectors at mission end
Figure 3. Final integrity comparison across all 12 shield sectors at mission end, highlighting sector consistency and localized variance.

Preliminary Result

Under simulated conditions, the C candidate maintained a stable integrity reserve throughout the modeled mission window. In this early-stage validation pass, the shield retained 80.9% mean integrity retention after 8.0 years, with the weakest sector ending at 78.1% sector integrity. These results should be presented only as preliminary outputs from a segmented stress simulation. Expanded testing is required before stronger claims are made.

Next Steps

  • Re-run the model with mission-specific environmental inputs
  • Compare additional shield candidates one at a time using the same structure
  • Follow the screening result with laboratory testing or higher-fidelity structural modeling