fatigue hardening 中文意思是什麼
fatigue hardening
解釋
疲勞硬化-
Fatigue strength coefficient decreases linearly during the cyclic course ; fatigue strength exponent increases ; fatigue ductility coefficient first goes up till the maximum value at 50 % total life, and then goes down ; fatigue ductility exponent decreases during the first half cycle till its minimum value at 50 % total life and then increases in the rest cycle course ; cycle strength coefficient and cycle strain hardening exponent both decrease during the total cycle course
結果表明： 6個基本疲勞特性參數在循環過程中都呈顯出規律性變化。疲勞強度系數呈線性減小趨勢；疲勞強度指數呈線性增大特徵；疲勞延性系數是一個先增后降的過程；而疲勞延性指數隨循環進行由初始減小到逐漸增大；循環強度系數和循環應變硬化指數在整個循環過程中都趨于減小。 -
Products and systems for the protection and repair of concrete structures - test methods - determination of fatigue under dynamic loading - part 2 : after hardening
混凝土構件的防護和維修的產品和系統.試驗方法.動荷載疲勞測定.第2部分:淬火后疲勞測定 -
Through research into the low - cycle fatigue behavior of gh4145 / sq, we found out that the control of strain at any level is not a stable course but has three obvious stages. the first stage is a rapid cyclic hardening course for any strain control
對gh4145 / sq合金在總應變幅控制下的對稱拉壓低周疲勞研究表明：在循環形變過程中合金主要表現為初始疲勞硬化、隨后疲勞軟化及最終失穩斷裂三個階段，疲勞硬化軟化行為與作用應變幅相關。 -
At present an important subject is researched on prediction methods of the initiation life of rolling / sliding contact fatigue of surface hardening layer based on shakedown theories under cycle contact loading for the strategies of applications of contact element, such as gears, bearings, and railroad rails
接觸體表面強化（噴丸、塗層）層的疲勞裂紋萌生壽命的研究，是當前齒輪、軸承等接觸件失效分析中的前沿課題。它具有重要而廣泛的工程背景。 -
In this thesis, the strain - hardening model of contact surface layer, the numerical theories and computational methods for shakedown analyses of contact body are systematically studied and applied to the aero - gear. the mentality is that the effects of the surface hardening and contact fatigue on contact surface layer under cycle contact loading are investigated by using shakedown analysis methods considering in a quantitative way the details of stress - inelastic strain responses, residual stress and residual strain computations
在國家「航空基金」 、 「總裝預研基金」等課題的資助下，本文以接觸體安定分析與接觸表面層疲勞裂紋萌生壽命預測一般演算法研究為手段，深入、系統研究了接觸體安定分析的數值理論和計算方法，全面研究了影響航空齒輪表面強化層失效的原因並提出了齒輪表面強化層裂紋萌生壽命的預測方法。
分享友人