塔形試樣 的英文怎麼說
中文拼音 [tǎxíngshìyàng]
塔形試樣
英文
steep bar-
In this paper, the high - temperature low - cycle fatigue life and fatigue crack propagation life tests are carried on the cylindrical axial symmetry specimens having precrack or non - precrack with different types of notches of 16mnr steel in common use in the petrochemical industry contacting coke drum equipment, the stress / strain and the range of stress / strain of dangerous points are received through stress analysis of the specimens using finite element program under multi - axial stress state. at last, the equations of evaluating the high - temperature low - cycle fatigue life and the fatigue crack propagation life are found through using the least - square regression method
本文採用無預裂紋和帶預裂紋環狀缺口圓柱形試樣，進行了石化焦炭塔設備常用材料16mnr多維應力狀態下不同缺口形式的高溫低周疲勞總壽命試驗及裂紋擴展壽命試驗，並利用有限元程序對試樣缺口周圍及裂紋尖端附近進行了軸對稱多維應力狀態下的應力、應變場分析，來評價材料不同條件下的高溫低周疲勞總壽命和裂紋擴展壽命，最後利用最小二乘回歸方法，得到了該材料高溫低周疲勞總壽命和裂紋擴展壽命評價方程。It is ever someone or other to use this comparison make into the object of the pyramid shape with the wire, and it is said to use the thing that put the easy decayed have the more last long function, for example food, razor blade etc. someone does like this of on trial, two wet the water s razor blade put outside tower inside with tower respectively. outside of a piece at five divas start rusting. tower inside of a the piece go as far as to sharp such as the, to just see the rust vestige after a many monthses
曾經有人用這比例以粗鐵線製成金字塔形狀的物體，據說用來藏放容易變壞的東西有更持久的作用，例如食物刀片等等。有人做過這樣的試驗，把兩張濕了水的刀片分別放在塔內和塔外。外邊的一張在五天後開始生銹。
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