stress peak 中文意思是什麼
stress peak
解釋
應力峰值-
Research about ctod and its components 8 ", " shows that the direction angle of ctod vector is identical with the fracture angle of void - mode fracture, which is obtained through experiments, and it is also identical with the result got by peak value line of stress triaxiality. besides, 8 i " was compare with vgc as criterion for initiation of void - mode fracture
對裂紋尖端張開位移ctod及其張開型分量~ 1和剪切型分量~ 11的分析表明，在試件發生韌窩型斷裂時，按照圓弧裂紋中ctod矢量的垂直方向預測的斷裂角與試驗測得的斷裂角符合較好，與三軸度脊線預計的結果也比較一致。 -
The welding technology of francis turbine runners is optimized from the view of subsection welding and local heating by numerical simulation. the result shows that welding residual tensile stress appears in the weld and its area nearby, and peak stress appears in the dangerous area of blades after practising quondam welding technology ; welding residual tensile peak stress in the dangerous area of blades can be decreased by welding both ends earlier and then welding middle section later during subsection welding, and decreasing effect on welding residual stress of the subsection welding is related to the weld length of blade outlets and welding direction of each subsection ; decreasing effect on residual stress of the local heating is direct proportional to heating time, heating temperature, heating area, and inversely proportional to cooling area, and welding residual tensile peak stress in the dangerous area is decreasing trend earlier, and then increasing trend later with heated location increased
本文利用數值模擬手段對轉輪的焊接工藝從分段焊和局部加熱兩個方面進行了優化，結果表明:採用普通工藝焊接時，葉片焊后殘余拉應力出現在焊縫及其附近區域，並且在葉片出水邊的熔合線附近（危險區域）出現了峰值;在採用優化的分段焊時，先焊兩端后焊中間的方法可以降低葉片危險區域的焊接殘余拉應力峰值，降低效果與葉片出水邊焊段長度、焊縫各段的焊接方向有關;局部加熱法降低轉輪危險區域殘余應力的效果主要與加熱時間、加熱溫度以及加熱面積成正比，與冷卻面積成反比，並且危險區域的殘余應力隨加熱區域的增大呈先降低后升高的趨勢。 -
According to differences of construction process, boundary condition, temperature and stress of two schemes extending 3m deep short seam on upstream face in the middle of rcc overflow section and no short seam are calculated, what " s more, in this paper the equivalent line drawing of stable temperature field and unstable temperature field during construction and operation period and the duration curve drawing of typical points " s temperature and stress are plotted, and the results of peak and minimum on temperature in every month and maximum on tensile stress are attained
根據施工過程和邊界條件，對溢流壩段中間上游面增設3m深短縫和不設短縫兩個方案進行了溫度和應力計算，並繪制出穩定溫度場等值線圖及施工期、運行期非穩定溫度場等值線圖，典型點溫度和應力歷時曲線圖，逐月最高、最低溫度和最大拉應力及相應位置等成果。 -
Influential factors and behavior of concrete prism confined with cfrp have been studied, based on the effective confined concrete area with cfrp, the peak stress and peak strain of cfrp - confined concrete prism depend on, and calculating equation is put forward
此外本文還對碳纖維布約束混凝土的受力性能及影響參數進行了研究。基於碳纖維布有效約束混凝土的面積，在原有箍筋約束混凝土的模型的基礎上，提出了碳纖維布約束混凝土稜柱體應力-應變關系模型。 -
Hydraulic pile hammer is one of the pile driving machines that drive prefabricated piles into the ground in the construction of pile foundation such as construction, bridge, dock, etc. with the development of science and technology, the prefabricated pile driving machines evolve from block hammer, steam - hammer, diesel hammer to hydraulic hammer. hydraulic pile hammer is one of ideal prefabricated pile driving machines because it can adjust stress waveform, decrease stress peak value, prolong effectual action when it drives piles. hydraulic pile hammer is used widely and formed series in developed countries now
液壓打樁錘是用於建築、橋梁、碼頭等樁基礎施工中打入預制樁的樁工機械。隨著科學技術的進步，預制樁施工機械由落錘、汽錘、柴油錘，發展到了液壓打樁錘。用液壓打樁錘打樁，可以調整撞擊應力波波形，減小應力峰值，延長有效作用時間，是一種比較理想的預制樁施工機械，目前在發達國家已被廣泛使用，並形成了系列化。 -
Through analyzing bed ' s response to wave, in the condition that super - stratum is more hard and second - stratum is more soft in region of interest, super static interstitial hydraulic pressure amplitude die away rapidly between stratums, before in sight of boundary between hard and soft stratum, plane effective pressure increase to max. shear stress reach peak value when bed thickness is approximately 2. 7 meters, then it will decrease to the minimum on the place where the flexible soil has a common boundary with the rigidity, so the boundary is the most destroy plane on engineering. on the basis of reconnaissance in situ, in normal situation of sea, the structure slides to the basin along the boundary
通過對底床在波浪下的響應分析，對于研究區底床上層較硬而第二層較軟的情況，超靜孔隙水壓力幅值在層間交界處迅速衰減，在臨近硬、軟地層交界處前，水平有效應力增至最大，剪切應力在底床厚度大約2 . 7米左右達到峰值，然後減小，到硬、軟層土交界位置，達到最小，因此這個界面就是最容易發生破壞的工程軟弱面，現場勘查證明，即使在正常海況下，構築物也會沿坡以此交界面為滑動面，緩慢向「盆」底滑動。 -
By means of similar simulation, lateral abutment pressure distribution and concentration degree which at the face of the upper coal, the distance between peak stress and coal surface, the influence circle of abutment pressure, and the transfer and weakening of concentrated pressure at the bottom side are analyzed on actual geology data in pingdingshan 8th mine f15 and f ( subscript 16 - 17 )
摘要採用相似模擬的方法，以平頂山八礦己二采區己15和己（下標16 - 17 ）煤層實際地質資料為基礎，分析了近距離煤層上煤層開采時，在上煤層采場兩側向的支承壓力分佈及集中程度、峰值距煤壁的距離、支承壓力的影響范圍；一定范圍內底板中集中應力的傳遞及漸衰減特徵。 -
In short, the analysis of arc - tip fracture shows that : the initiation of void - mode fracture can be judged by vgc criterion, or by j ". according to sx criterion ; fracture direction of void - mode fracture can be determined by ctod and peak value line of stress triaxiality. the mesomechanics mechanism of shear - mode fracture need further study, and analysis found direction of plastic belt is consistent with the direction of shear - mode fracture
綜上所述，本文通過對圓弧尖端裂紋的分析表明：對于韌窩型斷裂的起裂，可以依據-復合型斷裂的sx準則按照i ~ 1來預測起裂載荷，也可用v _ （ gc ）判據來預測起裂載荷，二者結果相近；對于韌窩型斷裂的斷裂角，用ctod矢量方向和三軸度脊線方向判斷均和試驗結果基本。 -
The peak acceleration and the peak shear stress in superstructures increase with the increment of replacement ratio. parameters of softening model are obtained through seismic settlement tests of composite cemented clay samples and relative curves are plotted considering different replacement ratio
通過復合試樣的震陷試驗，採用軟化模型的概念，得到了該模型有限元計算的有關參數，將這些參數和置換率的關系繪製成曲線並且給出了擬合公式。 -
The thesis studied the change of stress triaxiality in the four - point curved beam made in 16mnr with arc - tip crack and its important effect. in the beam, the points of peak value of stress triaxiality distribute along a line, whose direction is well consistent with the fracture direction got by experiment when so > 3mm
在圓弧裂紋試件中，裂尖附近的三軸度較高的點呈脊線分佈，按照脊線分佈擬合計算得到的三軸度脊線夾角在偏心距so 3mm時與試驗測得的斷裂角符合較好，這種情況下試件發生的是韌窩型斷裂。 -
Peak probability density function of von mises stress process
應力過程峰值概率密度函數的研究 -
Third, we examined the expression of ecbp21 dynamics during the incubation of angelica suspension - cultured cells and stress treatments through northern blot analysis. during the incubation of angelica suspension - cultured cells, the expression of ecbp21 gene increased from 0 to 12th day, and it reached a peak on the twelfth day. while the expression of cam gene increased from 0 to 9th day, and it reached a peak during the 6th - 9th day
3 . ecbp21表達分析: northernblot分析表明:在白芷懸浮培養細胞生長周期中， ecbp21和cam都為組成型表達， 0一12天ecbp21表達量逐漸增加，第12天達到最高，隨后12一21天， ecbp21表達量稍有下降，維持在一個比較穩定狀態;而o一6天時， cam表達量逐漸上升，第6一9天達到最大表達量，隨后， 9一21天， cam表達量有所下降。 -
3. though discussing the theory - character parameter ( peak stress 、 peak strain and plateau strength ) of the rpc filled circular steel tube, this paper set up the calculating formula of the theory - character parameter, using this formula, we validate the test data of 97 the ultra high concrete filled steel tube, and the result indicates that formula given in this paper fits to the ultra high concrete filled steel tube
3 、通過對圓鋼管rpc軸壓柱的理論特徵參數（極限強度、峰值應變與平臺強度等）進行探討，建立了圓鋼管rpc軸壓柱組合材料的的理論特徵參數計算公式，利用上述公式驗算了國內外97根圓鋼管超高強混凝土（ > 100mpa ）的試驗數據，表明公式對鋼管超高強混凝土也是適用的。 -
The study indicates that with the increase of the coal pillar width the peak mining stress delays its appearance and the increase of the displacement and stress are not synchronous
研究表明，綜放沿空留巷受采場礦壓影響時間和程度隨留巷煤柱寬度的增加表現出明顯帶后現象以及位移和壓力增長的不同步現象。 -
As a result 4 the rising annealing temperature induces si02 phase to form, also ivolves the formation of a si phase. in high - temperature - annealed sio ~, films the excess silicon atoms are present as si - si4 tetrahedra, randomly dispersed in the amorphous si02 matrix. photoluminescent spectra were observed for the samples excided by the laser whose wavelength is 365nm. the pl peak is located at about 445nm, which dose n ' t shift as the annealing temperature changes. as the annealing temperature is raised, the luminescent intensity increases. the phenomena suggest that the si - o - si bond as a defect center which is broken down by the stress at the si nc / si02 interface is the primary source of blue luminescence
這個陡的界面由於明顯的晶格結構的差別而有較大的應力。界面的形成伴隨著界面發光中心的增加，同時pl強度在l戶800有一個大的增強。這個結果提示我們，界面上h 0 s工鍵斷裂形成的nbohc應是藍光發射的主要原因。 -
The results of the study demonstrate that under the condition of the same slendness ratio, the stability factor of axially compressed medium long concrete filled steel tube column has no relation with peak stress of the core concrete, instead, the factor will depend on peak strain of the concrete
研究結果表明，在長細比相同的情況下，鋼管混凝土軸壓中長柱的穩定系數與核心混凝土的峰值應力無關，而取決于核心混凝土的峰值應變。 -
The temperature stress made the cells optimal irradiance range narrow and also made their sensitivity to irradiance. study on the daily variation of photosynthesis in different weather in four seasons in a year was carried out, too. the results showed that the daily variation curves of s1, s2 and s3 were two - peak curves in high irradiance, and the higher the irradiance was, the earlier the first peak appeared. in the weather with low irradiance ( for example, in cloudy day ), the photosynthetic rate varied with the irradiance changing
四季溫室不同天氣（晴天、多雲天氣和陰天）螺旋藻光合速率日變化測定結果顯示，在光照較強的天氣（如晴天） ， s _ 1 、 s _ 2和s _ 3的光合速率日變化曲線呈雙峰曲線，且光照越強，峰值出現越早；在光強較弱的天氣，光合速率隨光強的升降而升降。 -
Analysis of peak stress in rice kernel during moisture absorption
稻穀吸濕過程中內部應力峰值分析 -
The computation results show that after reinforcing the soft and weak floor, the deformation of the surrounding rock of sides gets smaller, especially, that in the lower part of the sides decreases to a larger extent ; the size of plastic zones and the scope of strength - softening region in surrounding rock of sides become smaller ; the area that has an increase in the maximal principal stress in surrounding rock of sides shrinks, and the zones of peak - value of maximal principal stress approach the periphery of roadway
計算結果表明，加固軟弱底板後巷道兩幫圍巖變形量減小，尤其是巷道兩幫下部圍巖變形量減小幅度較大，兩幫圍巖塑性區范圍和軟化區范圍縮小，兩幫圍巖主應力升高區范圍縮小，主應力峰值區域更加靠近巷道周邊。 -
Stage ii begins at a peak associated with the maximal interfacial stress. then, the unloading of macro - stress occurs. in stage iii, the interface is completely separate
1 ）隨著界面開始分離，宏觀剛度下降； 2 ）界面應力達到最大值並發生卸載，使得宏觀應力達到峰值然後卸載。
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