永えい久きゅうひずみ

え

い

きゅ

う

ひ

ず

み

Meanings

1

noun

permanent strain; permanent set; permanent deformation

Technical term in materials science and engineering for irreversible deformation remaining after stress is removed.

性せい

限げん

界かい

を

超こ

える

と

永えい

久きゅう

ひずみ

を

残のこ

す

。

This material retains permanent strain when stressed beyond its elastic limit.

永えい久きゅうひずみ
Common mixed kanji-kana spelling; ひずみ is often written in kana.
永えい久きゅう歪ひずみ
Full kanji spelling; 歪み is less common but still used in technical contexts.
永えい久きゅう歪ひずみ
Abbreviated kanji spelling; rarely used.

弾だん性せいひずみ
Elastic strain, which disappears when stress is removed, unlike 永久ひずみ.
塑そ性せい変へん形けい
Plastic deformation, a broader term for permanent shape change; 永久ひずみ is often used as a synonym in engineering contexts.

Compound of 永久 (eternal, permanent) and ひずみ (strain, distortion). The reading ひずみ is the nominalized form of the verb 歪む (ゆがむ, to warp).