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Bulk modulus (K) measures resistance to uniform compression: K = -V(dP/dV), inverse of compressibility.

단계별 가이드

  1. 1Input initial volume, pressure change, volume change
  2. 2Calculate bulk modulus
  3. 3Results show material stiffness under hydrostatic pressure

풀어진 예시

입력
Water: K ≈ 2.2 GPa (compressible)
결과
Steel: K ≈ 160 GPa (incompressible)
Water ~70× more compressible

피해야 할 일반적인 실수

  • Confusing with Young's modulus (uniaxial)
  • Not accounting for pressure effects on K

자주 묻는 질문

How does bulk modulus relate to speed of sound?

Sound speed = √(K/ρ); higher K means faster sound.

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