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Required Thickness for Jacket Closer Member with Jacket Width Calculator

Required Thickness Formula:

\[ t_{rc} = 0.886 \times w_j \times \sqrt{\frac{p_j}{f_j}} \]

mm
N/mm²
N/mm²

1. What is Required Thickness for Jacket Closer Member?

Definition: This calculator determines the minimum thickness required for a jacket closer member based on jacket width, design pressure, and material stress.

Purpose: It helps engineers design pressure vessels and jackets that can withstand specified operating conditions.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ t_{rc} = 0.886 \times w_j \times \sqrt{\frac{p_j}{f_j}} \]

Where:

  • \( t_{rc} \) — Required thickness for jacket closer member (mm)
  • \( w_j \) — Jacket width (mm)
  • \( p_j \) — Design jacket pressure (N/mm²)
  • \( f_j \) — Allowable stress for jacket material (N/mm²)

Explanation: The formula calculates the minimum thickness needed to withstand the design pressure while considering material stress limits.

3. Importance of Thickness Calculation

Details: Proper thickness calculation ensures structural integrity, safety, and compliance with pressure vessel design standards.

4. Using the Calculator

Tips: Enter jacket width (mm), design jacket pressure (N/mm²), and allowable stress (N/mm²). All values must be > 0. Results include ±5% tolerance.

5. Frequently Asked Questions (FAQ)

Q1: What is the 0.886 factor in the formula?
A: This is an empirical constant derived from pressure vessel design standards that accounts for geometric and material factors.

Q2: How is jacket width measured?
A: Jacket width is the internal clearance between jacket walls, measured in millimeters.

Q3: What units should be used?
A: Consistent units must be used (mm for length, N/mm² for pressure and stress).

Q4: Does this include safety factors?
A: The allowable stress typically already includes safety factors based on material properties.

Q5: Why is there a ±5% tolerance?
A: This accounts for manufacturing tolerances and material property variations.

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