Diameter of rivet given strength of joint per pitch length (double rivet) Calculator

Rivet Diameter Formula:

\[ D = \frac{S}{2 \times \sigma_c \times t} \]

Strength of joint:

Crushing stress:

Thickness of Plate:

Tolerance:

Rivet Diameter (m):

Diameter Range (with ±5% tolerance):

1. What is Rivet Diameter Calculator?

Definition: This calculator determines the required rivet diameter based on joint strength, crushing stress, and plate thickness, including tolerance range.

Purpose: It helps mechanical engineers and designers select appropriate rivet sizes for double-riveted joints.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ D = \frac{S}{2 \times \sigma_c \times t} \]

Where:

\( D \) — Rivet diameter (meters)
\( S \) — Strength of joint (Newtons)
\( \sigma_c \) — Crushing stress (Pascals)
\( t \) — Thickness of plate (meters)

Explanation: The joint strength is divided by twice the product of crushing stress and plate thickness to determine the minimum required rivet diameter.

3. Importance of Rivet Diameter Calculation

Details: Proper rivet sizing ensures joint integrity, prevents material failure, and meets safety requirements in mechanical designs.

4. Using the Calculator

Tips: Enter the joint strength in Newtons, crushing stress (default 2.4 MPa), plate thickness (default 12 mm), and tolerance percentage (default 5%). All values must be ≥ 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is this for double rivet joints?
A: The formula includes a factor of 2 because double rivet joints distribute load across two rivets.

Q2: What's a typical crushing stress value?
A: For steel rivets, crushing stress typically ranges from 2-3 MPa (2,000,000-3,000,000 Pa).

Q3: How does plate thickness affect rivet size?
A: Thicker plates require larger diameter rivets to maintain joint strength.

Q4: What tolerance should I use?
A: 5% is common, but adjust based on manufacturing capabilities and safety factors.

Q5: Can this be used for single rivet joints?
A: No, remove the factor of 2 in the formula for single rivet calculations.