永えい久きゅうひずみ

え

い

きゅ

う

ひ

ず

み

Meanings

1

permanent strain; permanent set; permanent deformation

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

Applying excessive force to metal causes permanent deformation.

この材ざい料りょうは弾だん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.

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.

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.

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).