Fatigue Strength Converter - Material Stress & Endurance Calculator
Conversion Result:
100 MPa = 14503.77377302 psi
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How Fatigue Strength Conversion Works
Input Stress
Enter stress value
Select Units
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Apply conversion factor
Fatigue Strength Conversion Table
| MPa | psi | ksi | GPa | bar |
|---|---|---|---|---|
| 10 | 1450 | 1.45 | 0.010 | 100 |
| 25 | 3626 | 3.63 | 0.025 | 250 |
| 50 | 7252 | 7.25 | 0.050 | 500 |
| 100 | 14504 | 14.50 | 0.100 | 1000 |
| 200 | 29008 | 29.01 | 0.200 | 2000 |
| 300 | 43511 | 43.51 | 0.300 | 3000 |
| 400 | 58015 | 58.02 | 0.400 | 4000 |
| 500 | 72519 | 72.52 | 0.500 | 5000 |
| 600 | 87023 | 87.02 | 0.600 | 6000 |
| 700 | 101526 | 101.53 | 0.700 | 7000 |
| 800 | 116030 | 116.03 | 0.800 | 8000 |
| 900 | 130534 | 130.53 | 0.900 | 9000 |
| 1000 | 145038 | 145.04 | 1.000 | 10000 |
| 1500 | 217557 | 217.56 | 1.500 | 15000 |
| 2000 | 290075 | 290.08 | 2.000 | 20000 |
Practice Problems
Problem 1:
Convert 250 MPa to psi
Solution: 250 ร 145.038 = 36,259 psi
Problem 2:
Convert 50 ksi to MPa
Solution: 50 ร 6.895 = 344.7 MPa
Problem 3:
Convert 1.5 GPa to MPa
Solution: 1.5 ร 1000 = 1500 MPa
Problem 4:
Convert 30,000 psi to ksi
Solution: 30,000 รท 1000 = 30 ksi
Problem 5:
Convert 500 bar to MPa
Solution: 500 รท 10 = 50 MPa
Common Examples
Steel Material Strength
Mild Steel: 250-400 MPa (36,000-58,000 psi)
High Strength Steel: 500-800 MPa (72,500-116,000 psi)
Stainless Steel: 200-300 MPa (29,000-43,500 psi)
Aluminum Alloy Strength
6061-T6: 96 MPa (14,000 psi)
7075-T6: 159 MPa (23,000 psi)
2024-T4: 138 MPa (20,000 psi)
Titanium Alloy Strength
Ti-6Al-4V: 510 MPa (74,000 psi)
Pure Titanium: 240 MPa (35,000 psi)
Ti-6Al-2Sn: 450 MPa (65,000 psi)
Composite Materials
Carbon Fiber: 600-800 MPa (87,000-116,000 psi)
Glass Fiber: 200-400 MPa (29,000-58,000 psi)
Kevlar Fiber: 400-500 MPa (58,000-72,500 psi)
Daily Uses of Fatigue Strength Conversion
Aerospace Engineering
Aircraft parts need fatigue strength analysis for safety
Automotive Industry
Car parts must handle repeated stress cycles
Bridge Construction
Bridges face constant load changes from traffic
Machine Design
Moving parts need fatigue strength calculations
Quality Control
Testing materials for long-term durability
Research Labs
Scientists study material behavior under stress
What is Fatigue Strength?
Fatigue strength is the maximum stress a material can handle when loaded many times. Think of it like bending a paper clip back and forth. At first, it's fine, but after many bends, it breaks. That's fatigue.
Materials get weak when they face the same stress over and over. Engineers need to know this limit to make safe products. Our fatigue strength converter helps change between different stress units like MPa, PSI, and ksi.
Key Points:
- Fatigue happens when materials face repeated stress
- Even small stress can cause failure over time
- Different materials have different fatigue limits
- Temperature and environment affect fatigue strength
- Proper design prevents fatigue failures
Frequently Asked Questions
What is the difference between MPa and PSI?
MPa (Megapascal) is a metric unit, while PSI (Pounds per Square Inch) is an imperial unit. 1 MPa equals about 145 PSI. Engineers use MPa in most countries, but PSI is common in the United States.
How do I convert ksi to MPa?
To convert ksi (kilopounds per square inch) to MPa, multiply by 6.895. For example: 50 ksi ร 6.895 = 344.7 MPa. Our converter does this math automatically.
Why is fatigue strength important?
Fatigue strength helps prevent sudden failures. Many accidents happen because parts break from repeated stress. Knowing fatigue limits keeps people safe and saves money on repairs.
What materials have high fatigue strength?
Steel, titanium, and some aluminum alloys have good fatigue strength. Carbon fiber composites also perform well. The exact value depends on the specific material and how it's made.
How accurate is this converter?
Our fatigue strength converter uses standard conversion factors and is very accurate. It's suitable for engineering calculations, homework, and professional work.
Can I use this for all stress calculations?
Yes, this converter works for any stress unit conversion, not just fatigue strength. You can use it for tensile strength, yield strength, and other material properties.