試樣口 的英文怎麼說
中文拼音 [shìyàngkǒu]
試樣口
英文
probe inlet-
The tensile strength and young ’ s modulus of cf / ep specimens before and after vacuum thermo - cycling were measured by an electrical universal material testing machine. an electron scanning microscope was used to perform the surface morphology and fractography of specimens
真空熱循環試驗前後cf / ep層合材料的拉伸性能由電子萬能材料試驗機完成,本文利用掃描電鏡觀測試樣表面形貌和拉伸后的斷口形貌。: 36 < kth < 37 mpa / m3 / 2, 42 < kih < 44mpa / m3 / 2, 51 < kc < 52 mpa / m3 / 2 through the sem fractography, it is know that the susceptibility to brittle failure at room temperature is more than below 100 ?. and the susceptibility to brittle failure increase with hydrogen increasing, under the sustained loading, ductile cracking appears. the quantity of brittle cracking is more with crack growth
T44mpa m 『 q , sl lt52mpa in 』 」斷口分析表明,該合金充氫后其室溫時的氫脆敏感性大於100oc時的氫脆敏感性;且隨氫含量升高,氫脆敏感性增加:在恆載荷的作用下,該合金裂二紋開始擴展時顯示的是韌性起裂;隨裂紋增長,試樣脆性斷裂的比例增大。Influence of loading rate on critical event of cleavage fracture in notched specimen of low alloy steel
加載速度對低合金鋼缺口試樣解理斷裂臨界事件的影響There should be no dead volume connection between chromatographic column and sampler as well as outlet and detector, so as to prevent the test samples from spreading and influence the separation
1色譜柱與進樣器及其出口端與檢測器之間應為無死體積連接,以免試樣擴散影響分離。In this paper, the high - temperature low - cycle fatigue life and fatigue crack propagation life tests are carried on the cylindrical axial symmetry specimens having precrack or non - precrack with different types of notches of 16mnr steel in common use in the petrochemical industry contacting coke drum equipment, the stress / strain and the range of stress / strain of dangerous points are received through stress analysis of the specimens using finite element program under multi - axial stress state. at last, the equations of evaluating the high - temperature low - cycle fatigue life and the fatigue crack propagation life are found through using the least - square regression method
本文採用無預裂紋和帶預裂紋環狀缺口圓柱形試樣,進行了石化焦炭塔設備常用材料16mnr多維應力狀態下不同缺口形式的高溫低周疲勞總壽命試驗及裂紋擴展壽命試驗,並利用有限元程序對試樣缺口周圍及裂紋尖端附近進行了軸對稱多維應力狀態下的應力、應變場分析,來評價材料不同條件下的高溫低周疲勞總壽命和裂紋擴展壽命,最後利用最小二乘回歸方法,得到了該材料高溫低周疲勞總壽命和裂紋擴展壽命評價方程。Destructive tests on welds in metallic materials - impact tests - test specimen location, notch orientation and examination
金屬材料焊接的破壞試驗.沖擊試驗.試樣定位槽口取向和檢驗In order to verify these criterions, tensile experiments are carried out for many kinds of samples made out of plexiglas with a planar v - notch under mixed - mode of i and ii
為了檢驗上述脆性斷裂準則,用脆性材料pmma加工成多種型、 -復合型v型切口試樣,進行了拉伸破壞實驗。By analyzing the part and fracture characteristic of sample, find the reason for this flaw is the choice of welding technology parameter is illogical ; welders don ' t grasp well the fibrin electrode ' s characteristics which distinguish with other low hydrogen electrodes, and usage isn ' t reasonable or operation isn ' t skilled
通過分析試樣的取樣部位和刻槽錘斷試樣斷口的特點,發現產生缺陷的原因是焊接工藝參數選擇不合理;焊工未能很好地掌握纖維素焊條與其他低氫型焊條相區別的特性,運條不合理或操作手法不熟練。Sem investigation shows that all the crack initiations can be traced back to the lateral sides of the sample, and the crack propagates along the direction normal to the loading axis
Zr一4合金的低周疲勞斷口上,所有裂紋都起源於試樣最窄處的側表面,並逐漸向內部擴展。The area of sediment outflow caused by piping was obtained by photo reproduction, and the local cross - sections of samples after the occurrence of piping were observed and measured with colored sediment taken as tracers
利用拍照還原等方式,得到管涌口出砂面積;並採用彩色砂作為示蹤材料,切片觀察測量管涌發生后試樣的局部剖面。There is a slight drop of the fcpr when the specimen s thickness increases. however, the thickness of the specimen exerts a great influence on kth and fatigue life ( n ) : the thicker specimen is, the higher fatigue life ( n ) becomes, and the greater kth shows. under control of the same conditions, the fcpr of am50 is not so high as that of az91. there are some correlations between load ratio ( r ) and the fatigue surface : when load ratio becomes great, small flat surfaces increase while dimples decrease
試樣厚度增大,穩態裂紋擴展速率略有減小。但是,試樣厚度影響試樣的疲勞壽命和門檻值:試樣越厚,疲勞壽命越長,門檻值越大;在試樣尺寸和加載條件相同的情況下, am50的疲勞裂紋擴展速率較az91小,疲勞壽命則比az91長。載荷比r影響試樣的斷口形貌:載荷比r越大,對應相同k值出的斷口小平面越多,韌窩越少。Aerospace series ; hydrogen embrittlement of steels ; notched specimen test ; german version en 2832 : 1993
航空航天.鋼的氫脆性.缺口試樣試驗At room temperature, the fracture for r specimen is the characteristic of fatigue stripe, while tire - like pattern appears on the fracture of the t specimen, and the hydrided sample is characterized by skeleton - like pattern and quasi - cleavage fracture at room temperature. however, the fracture characterized by second - crack at 400
常溫下, r向試樣的低應變幅疲勞斷口上較為明顯的特徵是疲勞條紋的存在; t向試樣的疲勞裂紋擴展區斷口上則為輪胎痕花樣;滲氫態試樣室溫下疲勞斷口的主要特徵為脊骨狀花樣和準解理斷裂特徵。The cracks extend along the matrix / strengthening - phases interfaces and form the cleavage steps and tear ridges. there appear some very small dimples on the fracture surfaces of the directionally solidified samples, which come from the nb - based solid solution particles in the big plates of the strengthening phases, but no dimples on the fracture surfaces of the as - cast sample. it can be concluded from above results that niobium - niobium silicide based in - situ composites ( rmics ) with a uniformly orientated microstructure can be produced by the ebfzm with high temperature gradient, and their mechanical properties can be increased
隨著抽拉速率的提高和硅化鈮強化相間距與尺度的減小,材料的室溫拉伸強度和斷裂韌性均有提高, _ b最高可達778 . 4mpa , k _ ( ic )達到了46 . 3mpa ? m ~ ( 1 / 2 ) ;試樣的拉伸斷口基本表現為脆性解理斷裂的花樣,裂紋沿基體強化相界面繞過強化相進行擴展,在裂紋擴展方向存在解理臺階,並形成撕裂棱。The relative density of the sample has reached as high as 97. 4 % of fully dense. the mean micro hardness has reached hv496. 3. the fractography of the fracture section of the tensile sample was characteristic of dimple typically which indicated that the fracture belong to ductile fracture
;試樣相對密度可以達到理論值的97 . 4 ;硬度方面由於激光立體成形工藝的特點,最後幾層的硬度比開始時的高,平均硬度達到了hv496 . 3 ;拉伸試樣的斷口形貌具有典型的韌窩特徵,屬于延性斷裂。Measurement of fracture toughness of pmma by using circumferentially notched round - bar specimens
切口圓棒試樣測聚甲基丙烯酸甲脂斷裂韌性可行性分析The fracture surfaces of multiaxial fatigue specimens under proportional and non - proportional multiaxial loadings were observed and analyzed by using a scan electron microscope
摘要利用掃描電鏡對多軸比例和非比例載下的疲勞試樣的斷口面和外表面進行掃描觀測分析。The oscillation of fatigue factors have much effect on small strain amplitude fatigue life, and the less the strain amplitude, the less the effect. as for notched specimen, the fatigue life prediction using fatigue factors of half - life section is the smallest
5時,採用7 10壽命階段的疲勞特性參數預測結果與實測值的一致性更好;對于缺口疲勞試樣,則採用半壽命階段的疲勞參數的預測結果為最小。The dcb ( double cantilever beam ) met hod to test the interlaminar toughness of fabric - reinforced laminates and the modified compliance calibration method ( mcc ) were adopted in this research. the double cantilever beam ( dcb ) test was executed for stitched laminates to evaluate the interlaminar fracture toughness. the stitch parameters ( stitch line spacing and pitch spacing ) were changed and their effects on interlaminar fracture toughness were examined by means of dcb test by using improved insert type loading fixture
試驗中採用改進的插入型夾具、雙懸臂梁dcb ( doublecantileverbeam )試驗方法,測試了載荷?試樣開口位移曲線,依據改進的柔度梁方法( modifiedcompliancecalibrationmethod ( mcc ) )計算出了各個試樣的層間斷裂韌性( r曲線)及層間斷裂韌性的平均值,闡明了縫合工藝參數與層間斷裂韌性( g _ ( ic ) )間的關系,以拉伸與彎曲強度為約束條件,以層間斷裂韌性值為目標優化了縫合工藝。The ratios of charpy impact value of small size specimen to that of the standard are studied by using the series charpy v - notch impact test method and the question how to select equivalent ratio of the charpy impact quota of non standard sample is also discussed
通過夏比v型缺口沖擊試驗,研究了結構鋼小尺寸試樣的沖擊功與標準試樣沖擊功的比值在系列溫度沖擊試驗中的變化規律,並述評了用等效比值數確定小尺寸試樣沖擊功指標的問題。分享友人