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Compressive Yield Strength Formula:
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Compressive Yield Strength (CYS) is the maximum stress a material can withstand under compressive loading before it begins to deform plastically. It is a critical mechanical property used in material science and engineering to evaluate the strength of materials under compression.
The calculator uses the CYS formula:
Where:
Explanation: The formula calculates the stress at which a material begins to yield under compressive forces by dividing the load at yield point by the cross-sectional area.
Details: Accurate CYS calculation is essential for material selection, structural design, and ensuring safety in construction and manufacturing applications where materials are subjected to compressive forces.
Tips: Enter Load at Yield in Newtons (N) and Area in square meters (m²). Both values must be positive numbers greater than zero.
Q1: What's the difference between compressive yield strength and compressive strength?
A: Compressive yield strength is the stress at which material begins to deform plastically, while compressive strength is the maximum stress a material can withstand before failure.
Q2: What are typical CYS values for common materials?
A: Values vary widely: concrete (20-40 MPa), steel (250-1000 MPa), aluminum (100-500 MPa), depending on the specific alloy and treatment.
Q3: How is load at yield determined experimentally?
A: Through compression testing where force is applied until the material shows a specified amount of permanent deformation (typically 0.2% offset).
Q4: Why is cross-sectional area important in this calculation?
A: Stress is force per unit area, so the cross-sectional area normalizes the load to allow comparison between different sized specimens.
Q5: Can this calculator be used for all materials?
A: The formula applies to all materials, but proper testing methods must be followed to obtain accurate load at yield values for different material types.