FELIX GLASS SUBSEA DOME FAQ

Safety Factor for Deep Sea Optical Dome Ports

Safety factor is the ratio between material failure load and actual working hydrostatic pressure. It is the core design parameter to avoid dome cracking under deep ocean pressure, cyclic loading and unexpected pressure spikes.

Recommended Safety Factor

• 3000m (300 bar) long-term deployment: minimum safety factor 1.5
• 7000m (700 bar) abyssal long-term mission: minimum safety factor 2.0

Why safety factor matters

Ocean equipment faces cyclic dive-ascent pressure, vibration, minor material defects and temperature variation. A safety margin prevents sudden brittle fracture during field operation.

How we validate safety factor

FEA finite element simulation calculates peak stress and checks safety factor in design phase. For 7000m domes, FEA with safety factor validation is mandatory before machining.

FAQ

Q: Can I use safety factor 1.2 for 7000m dome?
A: Not recommended. 7000m abyssal application requires minimum safety factor of 2.0 for reliable long-term service.

Q: Is safety factor calculated in FEA report?
A: Yes, our FEA results include safety factor analysis for critical stress hotspots.

Q: Does flanged dome need higher safety factor?
A: Same safety factor standard applies, but FEA must check stress at dome-flange transition zone.

Related Subsea Dome Products

3000m Deep Sea Optical Dome Port

7000m Ultra Deep Sea Optical Dome Port

Flanged Optical Dome Port | Integrated One-Piece Flange Subsea Dome

Related reading: What is FEA simulation for subsea dome port?

Related reading: Hydrostatic Pressure Test for Subsea Dome Port

Related reading: Standard Dome vs Integrated Flanged Dome Port

Related reading: Optical Dome Diameter Tolerance & Surface Specifications

Related FAQ: Subsea Optical Dome Port FAQ Library