Allowable crushing stress given safe load which rivet can withstand against crushing Calculator

Crushing Stress Formula:

\[ \sigma_c = \frac{P_{safe}}{D_{rivet} \times t_{plate}} \]

Crushing Stress (σ_c):

1. What is Allowable Crushing Stress?

Definition: Crushing stress is a special type of localized compressive stress which occurs at the surface of contact of two members that are relatively at rest.

Purpose: This calculator determines the allowable crushing stress based on the safe load a rivet can withstand, its diameter, and plate thickness.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ \sigma_c = \frac{P_{safe}}{D_{rivet} \times t_{plate}} \]

Where:

\( \sigma_c \) — Crushing stress (Pascal)
\( P_{safe} \) — Safe load joint (Newtons)
\( D_{rivet} \) — Rivet diameter (meters)
\( t_{plate} \) — Thickness of plate (meters)

Explanation: The safe load is divided by the product of rivet diameter and plate thickness to determine the crushing stress.

3. Importance of Crushing Stress Calculation

Details: Proper calculation ensures structural integrity of riveted joints and prevents failure under compressive loads.

4. Using the Calculator

Tips: Enter the safe load in Newtons, rivet diameter in meters, and plate thickness in meters. All values must be > 0. Results include ±5% tolerance.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical safe load for rivets?
A: Safe loads vary by material and size, but common steel rivets might have safe loads from 1,000N to 50,000N.

Q2: Why is there a ±5% tolerance?
A: The tolerance accounts for material variations, manufacturing tolerances, and safety factors.

Q3: How do I measure rivet diameter accurately?
A: Use calipers to measure the shank diameter before installation for most accurate results.

Q4: Does plate material affect the calculation?
A: The formula assumes the plate material can withstand the calculated stress. Additional checks may be needed for softer materials.

Q5: Can this be used for other fasteners?
A: The principle applies to similar fasteners, but specific calculations may differ for bolts or pins.