預先拉伸 的英文怎麼說
中文拼音 [yùxiānlāshēn]
預先拉伸
英文
prestretching-
A progressive damage method of predicting the static strength and the fatigue life of mechanically fastened joints in fibre - reinforced plastics is established in the paper, which is based on the theory of unidirectional ply
本文針對以上問題，首先以單層板理論為基礎，建立了層合板接頭靜拉伸及疲勞載荷作用下三維逐漸損傷分析的強度和壽命預測方法。Firstly, the parameters controlling ductile crack growth are gotten from the resistance curve result of standard 3 point bending specimen, then the resistance curves of the tension specimen for the welded joint with different strength mis - matching are predicted based on the cell model
首先由標準三點彎曲試件的阻力曲線，得出反映材料微觀損傷的特殊單元模型控制參量，再根據該參量對不同接頭強度匹配下雙邊缺口拉伸試件的阻力曲線進行了定量預測，其結果與試驗結果相當吻合。Firstly, the domestic researches, which have been reported, are introduced. then the characteristic of the system in estimation of prestressing losses is analyzed by theoretical method, and the reasons that the elimination of tendon is large and test results are not consistent are pointed. using fem software ansys, anchorage zone of pylon are analyzed
論文首先介紹了國內現階段對該問題的一些研究成果，然後從理論上分析了小半徑大噸位環向預應力體系在計算預應力損失方面的特點和造成張拉伸長量偏大且實測的數據離散性較大的原因，並採用國際權威的有限元分析軟體? ? ansys從理論上進行分析和索塔錨固區最不利節段的足尺寸模型試驗進行校驗。Products are : super high pressure electric, pneumatic, manual oil pump ; pre - stress jack for the use of coal mine and construction ; steel bar and cable scissor ; all kinds of bolt for safety supporting and bolting ( km19 and km22 bolt have all got the certificate of “ ma ” in china. ) ; cable anchor and bolt test stand ; hydraulic nut scissor and etc
產品有防爆式超高壓電動、風動、手動油泵；煤礦、建築用預應力張拉千斤頂；鋼筋、鋼絞線切斷器；安全支護用各種錨具（ km19 、 km22錨具在國內率先取得煤安證書） ；錨索錨具靜載拉伸試驗臺；液壓螺母破切器等。分享友人