# 急~~20點 請高手翻譯一篇英文

The following stress -strain and strain-life properties are given for a steel

(a)Draw on log-log coordinates the elastic strain-life,plastic strain-life,and total strain-life curves.Determine the transition life.

(b)Draw the hysteresis loops corresponding to strain amplitude values of0.05, 0.00125,and0.0007.Determine the fatigue life in reversals at these three strain levels.

(c)Determine the elastic,plastic,and total strain amplitude for a life of2*10的6次方reversals.

(d)Determine the elastic,plastic,and total strain amplitude for a life of 500 reversals.

(e)Determine the cyclic stress amplitude corresponding to fatigue lives of 500 and 2*10的6次方 reversals.

(f)A component made from this material is required to have a life of no less than 10的4次方 reversals.The loading on the component causes a total strain amplitue of 0.008. Determine if the component will meet the life requirements.

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The following stress -strain and strain-life properties are given for a steel

以下是碳鋼的壓張特性和張力壽命特性

(a)Draw on log-log coordinates the elastic strain-life,plastic strain-life,and total strain-life curves.Determine the transition life.

在對數-對數的座標上, 畫出彈性張力壽命, 塑性張力壽命以及總體張力壽命. 請得出過渡壽命.

(b)Draw the hysteresis loops corresponding to strain amplitude values of0.05, 0.00125,and0.0007.Determine the fatigue life in reversals at these three strain levels.

畫出當張力幅度為0.05, 0.00125,以及0.0007時的滯後圈. 請得出這三個張力程度下, 以回數為單位的疲勞壽命.

(c)Determine the elastic,plastic,and total strain amplitude for a life of2*10的6次方reversals.

請得出壽命為2百萬回次的彈性張力, 塑性張力以及總體張力幅度

(d)Determine the elastic,plastic,and total strain amplitude for a life of 500 reversals.

請得出壽命為500回次的彈性張力, 塑性張力以及總體張力幅度

(e)Determine the cyclic stress amplitude corresponding to fatigue lives of 500 and 2*10的6次方 reversals.

請得出對應於疲勞壽命為500回次以及2百萬回次的循環張力幅度

(f)A component made from this material is required to have a life of no less than 10的4次方 reversals.The loading on the component causes a total strain amplitue of 0.008. Determine if the component will meet the life requirements.

有個用這材料做出的元件需要有不少於一萬回次的壽命. 這個元件的負載造成0.008的張力幅度. 請判定這個元件是否合乎壽命要求