破斷壽命 的英文怎麼說
中文拼音 [pòduànshòumìng]
破斷壽命
英文
rupture life-
It can be seen from the results that the control beam had good plastic property in the static failure experiment after two million fatigue loading circles. all specimens with corroded main bars were failure under the fatigue loads within one million fatigue circles. fatigue lifespan of reinforced concrete beam was sharply shortened after main bars corroded in it and the beam was destroyed bristly without any prediction
試驗結果表明，振動測試不能夠對銹蝕鋼筋混凝土梁的疲勞破壞做出可靠的預測;對比梁在經過200萬次疲勞循環加載后的靜力試驗中仍表現出良好的延性破壞特徵;銹蝕梁在100萬次疲勞循環內均因主筋疲勞斷裂而破壞;主筋銹蝕使得梁的疲勞壽命急劇縮短;梁發生脆性破壞而沒有徵兆。But, for the reflective cracking of asphalt pavement with half rigid base course and the cracking of the ac overlay above joints ( cracks ) in existing pcc pavement, the results of research show that the fatigue life of ac layer is mainly the life of the crack propagating stage. so the theory and method of fatigue destructive mechanics ( fatigue fracture mechanics and fatigue damage mechanics ) should be used to study and design the pavement structures instead of traditional fatigue mechanics
而對於半剛性基層反射裂縫和舊水泥混凝土路面瀝青混凝土加鋪層接縫（裂縫）開裂，研究發現，瀝青結構層的疲勞壽命主要為裂縫擴展階段的壽命，此時不應採用傳統的疲勞力學進行研究和結構層設計，而應採用疲勞破壞力學（疲勞斷裂力學和疲勞損傷力學）理論與方法。Considering the influence of material original flaw, the thesis gave the 4 # 125t crane of no. 3 steel - making plant of maansan steel co. for example to analyze the designing and remaining life of the crane ' s girder by using damnification limits design method. the method was based on the theory of rupture dynamics and the principle of disrepair - security
本文以馬鋼第三煉鋼廠4 # 125t鑄造起重機主梁下蓋板大面積可見裂紋情況為例，考慮材料初始裂紋的影響，在斷裂力學理論和破損?安全設計原則的基礎上，採用損傷容限設計法來重新計算鑄造起重機的設計壽命；並對正在服役的鑄造起重機計算其剩餘壽命，為鑄造起重機的安全運行提供了較可靠的理論依據。The main conclusions are as following : 1. specimens have four kinds of fatigue failure characteristics such as normal section crack width and truncated section crack width beyond the limit, the fatigue damage of steel bars. specimens ’ fatigue life is from 15 thousand to 1800 thousand
主要結論如下: 1 、試件出現了正截面裂縫寬度達到限值、斜截面裂縫寬度達到限值、鋼筋疲勞斷裂等疲勞破壞特徵，疲勞壽命介於1 . 5萬次180萬次。Taking ti alloy tc11 electron beam welded work - piece as research object, which is the conventional material of aero engine compressor blisc, the fatigue damage evolution law of fatigue damage action in the area of welded joint based on damage mechanics theory is analysed, and fatigue damage model, which macro - parameter and micro - damage characteristics are related, with fractal geometry - a new conception of modern mathematics is set up in this paper. it tries to research the measuring method of fatigue fracture fractal dimension and the relationship of fractal damage variable with fatigue life. it also sets up the welded joint fatigue damage fractal evolution equation
本課題以航空發動機壓氣機葉盤常用材料鈦合金（ tc11 ）電子束焊構件為研究對象，對焊接接頭的疲勞破壞行為，基於損傷力學理論分析其疲勞損傷演化規律，應用現代數學的新概念? ?分形幾何學理論，建立宏觀參量與細觀損傷特徵相聯系的疲勞損傷模型，研究疲勞斷口分維數測量方法以及分形損傷變量與疲勞壽命之間的關系，建立焊接接頭疲勞損傷分形演化方程。分享友人