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論文の翻訳

英語の論文の翻訳がうまくできません。翻訳をお願いしたいです。よろしくお願いします。 Suppose that a metal specimen be placed in tension-compression-testing machine. As the axial load is gradually increased in increments, the total elongation over the gauge length is measured at each increment of the load and this is continued until failure of the specimen takes place. Knowing the original cross-sectional area and length of the specimen, the normal stress and the strain can be obtained. The graph of these quantities with the stress along the y-axis and the strain along the x-axis is called the stress-strain diagram. The stress-strain diagram differs in form for various materials. The diagram shown below is that for a medium-carbon structural steel. Metallic engineering materials are classified as either ductile or brittle materials. A ductile material is one having relatively large tensile strains up to the point of rupture like structural steel and aluminum, whereas brittle materials has a relatively small strain up to the point of rupture like cast iron and concrete. An arbitrary strain of 0.05 mm/mm is frequently taken as the dividing line between these two classes. Stress-strain diagram of a medium-carbon structural steel Proportional Limit (Hooke's Law) From the origin O to the point called proportional limit, the stress-strain curve is a straight line. This linear relation between elongation and the axial force causing was first noticed by Sir Robert Hooke in 1678 and is called Hooke's Law that within the proportional limit, the stress is directly proportional to strain or The constant of proportionality is called the Modulus of Elasticity or Young's Modulus and is equal to the slope of the stress-strain diagram from O to P. Then

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ちょっと長いけどおおむねこういう感じでしょう. わからない術語などありましたら材料力学の教科書を参照するかグーグル検索でもしてください. 引張/圧縮試験機にセットされた金属試料について考える. 垂直軸への応力を次第に増していくとき,(ひずみゲージの出力電圧がひずみに比例する値の限界である)ゲージ長を超えた試料の伸びが応力の増分ごとに測定され, その測定は試料の破断が起こるまで続く. 試料の初期長さと断面積の値を知っていれば,垂直応力とひずみの値を求めることができる. (これによって求められた)応力を x軸, ひずみをy軸にとったグラフは応力-ひずみ曲線とよばれる. このグラフは材料に種類によって異なる. 下に示したグラフは中炭素鋼についての応力-ひずみ曲線である. 工学的に金属材料は 脆性材料か延性材料に分類される. 延性材料はアルミニウムや鋼のように破壊されるとき比較的大きな引張ひずみを示す.それに対し脆性材料は 鋳鉄やコンクリートのように比較的小さなひずみで破壊される. 脆性と延性を分類するにあたりしばしば0.05mm/mmのひずみで破壊されるかどうかの基準が用いられる. 中炭素鋼についての応力-ひずみ曲線 比例限度(フックの法則) 原点から比例限度と呼ばれる点まで応力-ひずみ曲線は直線である.この伸びと引張軸方向の力の線形関係は1678年にロバートフックにより発見され, フックの法則と呼ばれる.比例限度まで応力はひずみに直接比例する.この比例係数は弾性係数またはヤング率と呼ばれ,応力-ひずみ曲線の原点から 比例限度点の間の傾きの値に等しい.

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  • marbleshit
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どの部分がうまく出来ないのかを、具体的に明示して頂けると助かります。

  1. カテゴリ
  2. 学問・教育
  3. 語学
  4. 英語

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