殘余應變 的英文怎麼說
中文拼音 [cányúyīngbiàn]
殘余應變
英文
overstrain-
Data was obtained in a continuous automated manner which greatly facilitated residual stress determination.
數據是連續地自動獲得的,這對確定殘余應變極為方便。The study work in the dissertation is an important part of the tenth five - year defence advanced research project of “ study on control technology of the machining distortion for complex structure parts ” supported by pla general armament department of china. theoretical analysis and experimental study are carried out on the initial residual stresses and their effects on milling distortion for thick aero - aluminum - alloy plate
本文作為總裝備部「十五」預研項目「復雜結構件加工變形控制技術研究」的主要組成部分,以航空鋁合金厚板為對象,研究重點定位在其初始殘余應力分佈規律及其對數控銑削加工變形的影響。Four contact state depending on rate of rolling / sliding between the couple of contact element were studied based on hertz contact model, and the results was shown that the rate of slide would affect the distribution of pressure in contact area and stress in the half plane
研究表明安定狀態隨載荷的大小而變化,其殘余應力和應變累積的大小與外加載荷成正比,並對計算中的一些問題進行了分析探討。Abstract : thermally induced stress and the relevant warpage cause by inappropriate mold design and processing conditions are problems that confounded the overall success of injection molding. a thermorheologically simple thermoviscoelastic two - dimension material model is used to simulate the residual stress and warpage within injection molded parts generated during the cooling stage of the injection molding cycle. the initial temperature field corresponds to the end of the filling stage. the fully time - dependent algorithm is based on the calculation of the elastic response at every time step. numerical results are discussed with respect to temperature and pressure
文摘:不均勻的熱殘余應力及其變形是注塑成型加工中常見的工程問題之一.應用熱流變簡單材料的二維熱粘彈本構方程得到的遞推公式,數值模擬了成型中的熱殘余應力及其翹曲變形,並用數值實驗討論了溫度、壓力對注塑件殘余應力及變形的影響,發現溫度變化不均勻是注塑件翹曲變形的最主要原因,其影響遠大於壓力的作用,與工程實驗的結論一致Friction stir welding process can improve mechanical properties as well as decrease distortion and residual stress
採用攪拌摩擦焊連接鎂合金可以避免熔焊時產生的焊接缺陷,且具有焊后變形小、殘余應力小等優點。Is the residual stress around a cold expanded hole undercyclically tensile applied stress monotonically attenuating
交變載荷下冷擠孔邊壓殘余應力衰減的非單調性Under the same consolidation ratio and the vibration times, effect of the dynamic stress on the dynamic residual strain shows linear relationship, and effect of the vibration times on the dynamic residual strain increasing
在同一固結比和同振次條件下,動應力對動殘余應變的影響約呈線性關系,且振次對動殘余應變的影響呈逐漸增大的變化關系。The reduction factors derived from curve fitting based on calculation results by the finite element program ( ansys ) considering all kinds of damages such as cutouts, corrosion, cracks, denting, initial deflection and residual stress are introduced to modify the effective width of perfect panel in the present paper
本文考慮板中可能存在孔洞、腐蝕、裂縫、局部撞損和初始焊接變形或殘余應力等損傷和初始缺陷,對不同的損傷形式用有限元程序( ansys )進行大量的計算,通過曲線擬合的方法引入折減系數對完好板格的有效寬度進行修正。Residual stresses not only result in unexpected machining distortion, but also increases the possibility of unpredicted fatigue failures and stress corrosion cracks ( scc )
殘余應力的存在直接影響構件的疲勞強度、抗應力腐蝕性能及尺寸穩定性,並導致后續機械加工過程中產生變形。Residual stresses developed during heat treatment are caused by : ( 1 ) thermal gradients within the metal, ( 2 ) nonuniform changes in the metallurgical structure, and ( 3 ) nonuniformity in the composition of the metal itself, such as that caused by segregation
熱處理中產生殘余應力的原因有: ( 1 )金屬中存在多級熱梯度; ( 2 )金相組織的非統一變化; ( 3 )金屬自身構成的非一致性,如隔離造成的非一致性。Therefore one of efficiency means to solve cracking problem of runners is to change distribution of welding residual stress of blades, to decrease welding residual tensile stress in the dangerous area of blades or even turn to compressive stress
因此,改變葉片焊接殘余應力的分佈狀態,降低葉片危險區域的焊接殘余拉應力峰值,甚至將危險區域的拉應力轉變為壓應力,是解決轉輪裂紋問題的有效途徑之一。Energy estimating approach of fatigue crack initiation life for welded steel structures is obtained by using molski - glinka energy density equation, introducing the worst - case fatigue notch factor, and considering the effects of residual stress on fatigue
本文採用應力應變能密度的molski - glinka方程,建立了一種預測焊接鋼結構疲勞裂紋形成壽命的能量方法。該方法引入了極值疲勞切口系數,並考慮了焊接殘余應力對裂紋形成壽命的影響。The residual deformation around the hole was measured by digital speckle correlation technique and the relation curves of residual strain at the side of hole vs fatigue life cycles were obtained
再應用數字散斑相關技術測量了不同疲勞循環次數后孔周的殘余變形場,並給出了孔邊最大殘余應變與疲勞循環次數的關系曲線。Second, the direct analysis method was applied to determine the residual stress of rolling / sliding contact between cylinder and plane. more over the limit of shakedown load of contact surface layer was computed with different friction affection
對二維滾滑彈塑性接觸的安定狀態,建立循環載荷下接觸安定狀態分析的計算機應用程序,並進行了殘余應變和殘余應力的分析計算。Influence of texture on residual strain in cvd free standing diamond films
自支撐金剛石薄膜殘余應變的影響( 2 ) the tests on the fatigue behavior of concrete under uniaxial tension with variable - amplitude fatigue loading were carried out. the damage variable is defined
( 2 )進行了混凝土單軸軸拉變幅疲勞性能試驗。探討了變幅疲勞殘余應變的規律與特點。The mechanical property of corroded re - bars is deteriorated, and the fatigue damage of re - bars is accumulated
縱筋殘余應變增加,增加幅度減小,銹蝕鋼筋力學性能劣化,疲勞損傷積累。Test method for photoelastic measurements of birefringence and residual strains in transparent or translucent plastic materials
透明和半透明塑性材料雙光折射及殘余應變的光彈性測量的試驗方法Standard test method for photoelastic measurements of birefringence and residual strains in transparent or translucent plastic materials
透明或半透明塑性材料中雙折射及殘余應變的光彈性量度的標準試驗方法The research work in this paper is included following : 1, a fatigue model based on the " strain equivalent hypothesis " is presented
創新內容包括: 1 、本文提出了考慮殘余應變剛度下降的復合材料疲勞累積損傷模型。分享友人