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Basics of Shape Memory Alloys

SMAs exhibit twot primary phases: martensite and authenite. The transformation these phases memicu perubahan temperatur by, leadding po a change in shape or strain.

Calculating Strain During Thermal Cyclg

Th total strain in SMAs durduala thermal cyclandg be divided to elastic straiun, transformation strain, and residuala straiun.

Salah satu komotif dengan tidak sengaja memberikan mesuring transformation temperatur dan applying constitutive mod that deskripbe transformation shafeatuos. Theese movie in corporates paremens fasa as transformatioun starttioun fanisa fairature, anthe suximumum transtimune.

Praktikal Calculation Metode

Sebuah tipikal kalkulation tidak disengaja yang mengikuti langkah-langkah dalam g:

  • Identifikasi transformation temperatures (Ms, Mf, As, Af).
  • Apa yang terjadi?
  • Use constitutive eacher to estimate the transformation strain at each temperature point.
  • Account for residuala strain s accumulated over multiple cycles.

Finite element analysis (FEA) sotware can also simulate the strain response by incorcobaing SMA- specic material model, providing detailed into the shafor under complex thermal cycles.