Pull a material apart and its stress-strain curve reveals everything — stiffness, strength, and whether it stretches or snaps.
Stress-Strain CurveLive
tensile testing
Controls
Presets
Pull on a material and its stress-strain curve tells its story: a straight elastic region with slope equal to Young's modulus, a yield point where permanent deformation begins, a peak at the ultimate tensile strength, and finally fracture. Ductile metals stretch far; brittle ones like cast iron snap with almost no warning.
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How it works
The stress-strain curve from a tensile test shows a linear elastic region whose slope is Young's modulus, a yield point where permanent deformation starts, a peak at the ultimate tensile strength, and fracture. Ductile metals deform greatly before breaking; brittle materials fail suddenly with little warning.
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