Engineering English
Yield Point
Engineering Fundamentals · Materials Engineering · Last updated: July 30, 2026 · How this entry was written
Definition: The yield point is the stress at which a material begins to deform plastically without an increase in load. It marks the transition from elastic to plastic behavior.
Example in context
“The yield point of the aluminum alloy was recorded at 250 MPa during the tensile test, indicating the onset of plastic deformation.”
“Alüminyum alaşımının akma noktası, çekme testi sırasında 250 MPa olarak kaydedildi ve plastik deformasyonun başladığını gösterdi.”
Where engineers use it
The yield point defines the safe working stress for materials in design. Engineers use it to ensure structures remain within elastic range under service loads.
Synonyms: yield stress, yield strength
In Materials Engineering
The yield point is the stress level at which a material begins to deform plastically, marking the transition from elastic to plastic behaviour. For materials with a sharp yield, it is clearly defined; for others, a proof stress offset is used.
“Mild steel exhibits an upper and lower yield point, which is easily identified on the stress‑strain curve generated during a tensile test.”
Practice: can you use “Yield Point” at work?
A mechanical engineer designs a bracket that must support a load without permanent set. Given the material's yield point, determine the maximum allowable stress for a safety factor of 2.
Show a model answer
“Never exceed the yield point in load-bearing components to avoid permanent deformation.”
“Yield Point” in 21 languages
| English | Yield Point |
|---|---|
| Turkish | akma noktası |
| French | seuil d'écoulement |
| German | Streckgrenze |
| Spanish | punto de fluencia |
| Chinese | 屈服点 |
| Arabic | نقطة الخضوع |
| Portuguese | ponto de escoamento |
| Russian | предел текучести |
| Japanese | 降伏点 |
| Italian | punto di snervamento |
| Vietnamese | điểm chảy |
| Hindi | प्रतिफल बिंदु |
| Thai | จุดคราก |
| Indonesian | titik luluh |
| Korean | 항복점 |
| Bengali | ফলন বিন্দু |
| Dutch | vloeigrens |
| Swedish | sträckgräns |
| Finnish | myötöraja |
| Ukrainian | межа текучості |
Frequently asked questions
What does Yield Point mean in engineering?
The yield point is the stress at which a material begins to deform plastically without an increase in load. It marks the transition from elastic to plastic behavior. In Engineering Fundamentals, the term carries a usage-frequency rating of 10/10 in the Engineering English library.
How do you pronounce Yield Point?
Yield Point is pronounced /jiːld pɔɪnt/ (IPA). The Engineering English app plays audio for the term and checks your pronunciation with speech recognition.
How is Yield Point used in a sentence?
Example from an engineering context: “The yield point of the aluminum alloy was recorded at 250 MPa during the tensile test, indicating the onset of plastic deformation.”
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