過拉伸 的英文怎麼說
中文拼音 [guòlāshēn]
過拉伸
英文
overstretching-
Tensile tests of carbon filament yarn shows at high strain rate that the mechanical behavior of carbon fiber bundles are insensitive to strain rate, i. e., the failure stress strain and elastic modulus are not increased with the rising of strain - rate. however, the fractograph of carbon fiber is rate - dependent. the fractograph of carbon will become smooth from coarse as the strain rate increases
通過對碳纖維束的沖擊拉伸試驗表明,雖然碳纖維束的力學性能與應變率基本上是不相關的,即隨著應變率的增大,碳纖維束的初始模量、破壞應力及其失效應變都變化不大,但碳纖維束的破壞斷口與沖擊拉伸實驗的應變率密切相關。The main causes which lead to tensile abnormal fracture of swrh82b steel rods are the network cementite sod the big brittle inclusion
摘要通過對swrh82b盤條的拉伸斷口進行分析,認為網狀滲碳體和大顆粒脆性夾雜物等缺陷是引起斷口異常的主要原因。First the sketch / datum plane is fitted by least - square distance, then the extruded direction or axis with the flank points of the cloud is extracted in quadratic paogramming arithmetic, and certain points projected to gain 2d sketched datas. feature points are defined to segment the sketch datas, and the sketch profile is generated by fitting separately the line and circle segment
使用最小二乘方法擬合草圖基準平面,採用二次規劃方法提取拉伸方向和旋轉軸線,然後將數據點投影以獲取草圖數據,通過柵格劃分提取草圖邊界輪廓數據,再對這些邊界數據進行基於特徵點的分割,以直線和圓弧段擬合出草圖輪廓。4. the principle of the experiment including the isdg method is introduced. and the effect of shape and distance of the indention on strain measurement is analyzed
4 )介紹試驗設備的組成及試驗原理,通過理論推導和有限元數值模擬分析了拉伸試樣的凹痕標記對應變測量的影響,對isdg ( interferencestrain displacementgauge )方法進行了深入的研究。For rotor steel ( 30crlmolv steel ), the tests of low - cycle fatigue property are done under different temperatures. the fatigue life under different temperatures is researched to make up for the defects of the testing for foreign similar materials. when pull - stretch data is attempted to evaluate low - cycle fatigue data, the result shows that four - point associated method in middle - low life zone is done well under room temperature, but there are large errors of four - point associated method and general - slope method under other temperatures
在本文中,通過與國外同類材料的性能進行比較,國產材料與國外材料共有的材料特徵基本相同;對轉子鋼( 30crlmolv鋼)進行了不同溫度下的低周疲勞性能實驗,研究其在不同溫度下疲勞壽命,以彌補國外對同類鋼材測試的不足;採用拉伸數據預測低周疲勞壽命時發現,室溫條件下用四點關聯法在中低壽命區預測較好,在高溫條件下四點關聯法和通用斜率法都有較大誤差,需要進行改進。The results from x - ray diffraction demonstrated that pp / mmtome was a fully intercalated nanocomposite, pp / mmtom and pp / ommt were partly intercalated nanocomposites, but the intercalation effect of pp / mmtom nanocomposite was better ; the crystallization characteristics of pure pp and pp / mmt nanocomposites were investigated by dsc, waxd and pom. the result of these testing showed that mmt nano - layers acted as nucleating agents for the crystallization of pp, the addition of mmt had effect on the crystallization process, leading the increasing of crystallization temperature crystallization rate and crystallinity, but also the dimension of spherulite reduced. but the formation of pp crystal did n ' t change, the formation of pp crystal in three pp / mmt nanocomposites and pure pp were a - form on the whole ; influences of three sorts of mmt on mechanical properties of pp / mmt nanocomposites were studied, as a result, the addition of mmt comprehensively improved mechanical properties of pp : notched impact strength, tensile strength and flexural properties were all increasing, but the extent of increasing were n ' t large
通過xrd分析比較這三種pp mmt納米復合材料微觀結構得到, pp mmt _ ( ome )屬于完全插層, pp mmt _ ( om )與pp ommt的插層程度相近,但是pp mmt _ ( om )相對較好;通過對純pp和三種pp mmt納米復合材料的結晶性能研究發現,蒙脫土納米片層對pp結晶產生明顯的異相成核作用,結晶能力增強,使pp的結晶溫度和結晶速率提高,結晶度增加,球晶晶粒細化,但是沒有改變pp的結晶形態,三種pp mmt納米復合材料的結晶形態都屬于晶;通過對pp mmt納米復合材料的力學性能測試得知,蒙脫土的加入全面提高了pp的力學性能,缺口沖擊強度、拉伸強度和彎曲性能都有一定程度的提高,浙江{ _業大學碩十學位論文摘要但是提高幅度都不是很大,不過ommt 、 mmtom和mmtc ) me三種蒙脫土對pp力學性能有著不同的改性作用,其中pp / mmtom最好, pp月邊mto崛次之, pp / ommt最低,這種情況主要是由蒙脫土對pp結晶性能的影響和蒙脫土的納米改性作用造成的。At the same time we study, analysis and discuss the action that non - linearity - stickiness - springiness and crazing damage of the pmma sample under creep though making us of the knowledge about the high molecule physics the damage theory of material of rheology of bodies with defects. through the study and theory analysis of single - axes stretching experiment in pmma sample under creep, take the surface crazing damage density of pmma sample as an variable, to look for a commonly rule that the crazing damage of pmma, and to offer a feasible damage model for the sake of study that of pmma ' s remoteness damage
同時運用高分子物理、含缺陷流變性物體的材料破壞理論等知識,對無孔洞pmma試件和有孔洞pmma試件蠕變條件下非線性粘彈性行為及其銀紋損傷現象進行了研究、分析與探討,通過對蠕變條件下的pmma試件的單軸拉伸實驗研究和理論分析,以pmma試件的銀紋損傷面密度值為損傷變量,來嘗試尋求pmma銀紋損傷的一般規律,為研究pmma的細觀損傷提供了一種可行的損傷模型。We believe the fine mechanical properties of tubular film are related to its fine chain orientation structure by using pole figure investigation and polarized fourier transform infrared ( ftir ) spectra analysis, the modes of orientation for flat and tubular films are obtained. it was found that the cellulose chains of the flat and tubular films have an uniplanar orientation mode with respect to the film surface
通過x衍射織構(極圖)分析和偏振紅外光譜分析建立了平膜和管膜的取向模型:平膜和管膜都有單平面取向;平膜中的分子鏈在膜表面內呈無規取向:管膜中的分子鏈則相對于拉伸方向有明顯擇優取向。Basing on the realities mentioned above, the contents of this paper are as follows : first, the paper is summarized the results of tension test on geosynthetics. then the paper presents the contents and results of tension properties on uniaxial oriented geogrid, warp knitting geogrid, woven geotextile and unwoven geotextile
首先,歸納總結國內外土工合成材料拉伸試驗的研究成果,通過室內試驗研究常用的加筋材料? ?單向土工格柵、經編土工格柵、有紡土工布和無紡土工布的拉伸特性。Adhesives for load - bearing timber structures - test methods - determination of the effect of acid damage to wood fibres by temperature and humidity cycling on the transverse tensile strength
承重木結構用膠粘劑.試驗方法.通過溫度和濕度循環試驗測定木纖維酸性腐蝕對橫向拉伸強度的影響The v was tested by yjy stress transducer with mvad card by the methods of recording the deformation in the wideness and thickness direction of the specimens during the tensile test. a stable auxetic polyolefin blend with the minimal value - 1. 4 was observed after repeated test
採用附有mvad通道卡的yjy型片式傳感器,記錄試樣在拉伸過程中寬度和厚度方向的形變並根據泊松比的定義進行計算,反復實驗后獲得最小值為- 1 . 4的負泊松比烯烴共混體系。When fillings is other materials ( unprocessed montmorillonite, powder coal ash, co - composite of powder coal ash and organo - montmorillonite, co - composite ofcarbonizing calcium and organo - montmorillonite ) in the binder and content of organo - montmorillonite in the binder is five percent decided by tensile - shear experiment, tensile - shear strength of binder is up to tiptop ; at the same time, this paper carries out abrasion experiment, and, by comparison, concludes abrasion property of coating is optimum when content of organo - montmorillonite in the binder coating is five percent, and observes abrasion sample under set
當膠粘劑中填料為其它物質(未處理蒙脫土、粉煤灰、粉煤灰和有機化蒙脫土共復合、碳化鈣和有機化蒙脫土共復合)時,通過拉伸剪切試驗確定膠粘劑中有機化蒙脫土含量為5時,膠粘劑的拉伸剪切強度最高;同時進行了沖蝕磨損試驗,通過比較得出,當膠粘劑塗層中有機化蒙脫土含量達到5時,塗層的耐沖蝕磨損性能最佳,並對沖蝕磨損試樣在掃描電子顯微鏡( set )上進行觀察。After removal of body halves, the elastomeric seat can be removed from the disk / shaft manually by stretching the bottom of the seat over the lower end of the stem
閥體兩瓣拆卸開后,可以通過拉伸閥桿下部的閥座底層,手工將彈性材料閥座從閥瓣/閥軸上拆卸下來。The structure of the deformation bands was observed and photographed by a microscope with a camera accessory. a user material mechanical behavior ( umat ) subroutine was developed based on the crystal plasticity model, and with it, the anisotropic elasto - viscoplastic behavior in single crystals was described. slip systems " evolution was simulated by using finite element method with the subroutine
本文使用數值模擬的方法對[ 001 ] 、 [ 011 ] 、 [ 111 ]以及偏軸加載的多種取向試樣進行了拉伸試驗模擬和循環模擬,研究了不同取向的試樣在加載過程中滑移系的演化情況,並對試樣的宏觀力學行為和細觀機理進行了評述。Three dimensional braiding preform reinforced resin composite is a new type of advanced composites and used in aircraft and space, transportation, construction, military project, medical treatment and physical education etc. 3 - d braiding composites will subject to long - term tensile force during applied process, which is a long - time creep process
樹脂基三維編織復合材料是一種先進的復合材料,它已經應用於航空、航天、交通、建築、軍工、醫療、體育等領域。在應用過程中,三維編織復合材料會受到長期拉伸力的作用,這決定了它的使用過程是一個長期的過程,因此蠕變性能成為表徵其力學性能的一個非常重要的指標。Abstract : the property of silk fabric grafted ( cross - linked ) with hydroxypropyl methacrylate and protein at different rate of weigh gain, by measuring strength and elongation at break, dyeability, elastic, moisturecontent, whiteness, permeability of gas, ir and x - ray diffraction diagrams was studied
文摘:通過對織物的拉伸特性、吸濕性、彈性、染色性、白度、透氣性、紅外和x射線衍射的研究,探討了在不同增重率條件下甲基丙烯酸羥丙酯在絲蛋白存在下與真絲綢接枝交聯后的結構及其特性的影響。Several kind of simplified calculating models are introduced. the web and flange plates in mcar with a large number of corrugations were equivalent to orthotropic curve plates. the equivalent elastic modulus was yielded by tensile tests, which provides the material constants data for the structural static and dynamic analysis
2 、綜述了拱型波紋鋼屋蓋的各種簡化計算模型,並把帶有波紋的腹板和底板分別等效成正交各向異性平曲板,通過拉伸測試了它們的等效彈性模量,為結構的靜力和動力有限元分析提供材料常數依據。The study showed that the pan / pu hollow fiber membranes were successfully fabricated the technic of draw - interfacial phase separate micro - void
研究表明通過拉伸相界面分離致孔技術可以制得pan pu中空纖維膜。Standard test method for strength properties of tissue adhesives in t - peel by tension loading
通過拉伸載荷測定t形剝落狀態下組織粘合劑強度特性的標準試驗方法Standard test method for strength properties of tissue adhesives in lap - shear by tension loading
通過拉伸載荷測定搭接剪切狀態下組織粘合劑強度特性的標準試驗方法分享友人