Engineering

Tegangan (Stres)

Definisi

Tegangan adalah gaya internal per satuan luas di dalam material yang diakibatkan oleh gaya eksternal yang diterapkan, diukur dalam pascal (Pa) atau pound per inci persegi (psi).

Penjelasan

A 10,000 N load spread over 0.01 m² produces 1 MPa (megapascal) of stress. Structural steel yields at around 250 MPa and fractures near 400–500 MPa. Engineers design bridges and buildings to keep stresses well below material yield points, with safety factors typically of 1.5–3x. Stress concentration at holes, notches, or cracks can multiply local stress many times above the average.

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