Thickness of plate of pressure vessel with longitudinal joint Calculator

Thickness of Plate Formula:

\[ t1 = \frac{Pf \times D}{2 \times \eta \times \sigma h} \]

Intensity of Fluid Pressure:

Inner Diameter of Vessel:

Joint Efficiency:

Circumferential Hoop Stress:

Manufacturing Tolerance:

±%

Calculated Thickness:

With Tolerance Range:

1. What is Plate Thickness Calculator for Pressure Vessels?

Definition: This calculator determines the required thickness of a pressure vessel plate based on fluid pressure, vessel dimensions, joint efficiency, and material stress.

Purpose: It helps engineers design safe pressure vessels that can withstand internal pressures without failure.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ t1 = \frac{Pf \times D}{2 \times \eta \times \sigma h} \]

Where:

\( t1 \) — Plate thickness (meters)
\( Pf \) — Fluid pressure (Pascals)
\( D \) — Inner diameter of vessel (meters)
\( \eta \) — Joint efficiency (0-1)
\( \sigma h \) — Circumferential hoop stress (Pascals)

Explanation: The formula calculates the minimum required thickness to resist the bursting pressure, considering joint strength and material limits.

3. Importance of Plate Thickness Calculation

Details: Proper thickness calculation ensures vessel safety, prevents catastrophic failures, and meets regulatory requirements while optimizing material usage.

4. Using the Calculator

Tips: Enter pressure, diameter, joint efficiency (typically 70-90% for riveted joints), material stress, and manufacturing tolerance (±%). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why include manufacturing tolerance?
A: Manufacturing variations can affect thickness. The tolerance range (typically ±5%) accounts for these variations in actual production.

Q2: What's a typical joint efficiency for riveted joints?
A: Efficiency ranges from 0.7-0.9 (70-90%) depending on joint type and quality of workmanship.

Q3: How is circumferential hoop stress determined?
A: It's based on material properties and safety factors, typically 60-80% of the material's yield strength.

Q4: Does this consider corrosion allowance?
A: No, additional thickness should be added if corrosion is expected during the vessel's service life.

Q5: What safety factors should be applied?
A: The calculated thickness is theoretical minimum. Engineering codes typically require additional safety factors (1.5-4x) based on application.