拉伸系數 的英文怎麼說
中文拼音 [lāshēnxìshǔ]
拉伸系數
英文
drawing coefficient-
Methods. apparent glucose diffusivity measurements were performed on 10 axial and 10 radial af specimens from bovine coccygeal discs. the dependence of diffusivity on compression was determined using 3 levels of strain ( 0 %, 10 %, and 20 % )
方法:測量來自牛尾骨椎間盤纖維環10個軸的和10個輻射的樣品來獲得葡萄糖近似擴散系數。壓縮狀態下的擴散系數決定於3個等級的拉伸( 0 % , 10 % ,和20 % ) 。Relations between the fractal dimensions of tensile fractures and the tensile ultimate stresses for the grain composite material caco3 abs
拉伸斷口表面分形維數與其拉伸強度極限的關系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。The first stage is primary slip then followed by secondary slip ; the last stage is due to dislocation passing the slips. the cyclic stress strain ( css ) curve exhibits a stronger hardening occurred in cyclic plastic deformation than that in tensile test
建立了拉伸和應變疲勞的有限元模型,使用基於晶體滑移模型的數值方法,對晶體內部滑移系的啟動以及滑移繫上的分解切應變、切應力這些無法試驗觀測的變量進行計算,分析它們對晶體塑性變形的不同影響。Vulcanized rubber - determination of coefficient of low temperature resistance at extention
硫化橡膠拉伸耐寒系數的測定In the beginning, the working principle, testing and data processing system of pdl micro - control material test machine is introduced ; then more attention is paid to the hardware system which is composed of high precision raster linear displacement sensor, high precision force sensor, the digital displaying sets, the interface equipments and the controlling circuits etc to perform the data collection and ensure the testing precision of the whole system
論文首先介紹了pdl材料拉伸試驗機的工作原理、測試及數據處理系統;接著詳細介紹了由高精度光柵線位移傳感器和壓力傳感器、數顯裝置、介面裝置及控制電路等組成的新的硬體系統,來完成數據採集,並保證整個系統的測試精度要求。Based on the principle of michelson interference a new integrative experiment apparatus to measure linear expansion coefficient and yang ' s modulus of metals is designed and manufactured primarily
摘要在邁克耳孫干涉原理的兩條干涉光路中,分別設置可以精確測量金屬絲的拉伸長度和金屬棒熱膨脹伸長量的裝置,從而設計出一種可以分別測量金屬楊氏模量和線脹系數的新型綜合實驗儀器。This article performed an application of such means as modern test technology, computer processing system, serial ports communication and electrohydraulic proportional control technology to reform the sheetmetal combined testing machine, so that the stretching force, clamping force and the stretching length can be tested and controlled by the computer system, which greatly improved the stability and testing precision of the testing machine
摘要通過應用現代測量、微處理、串口通信、電液比例控制等技術,對自行研製的鈑金綜合試驗機進行了改造,實現了對拉伸力、夾緊壓力和拉伸長度的計算機數據採集和控制,大大提高了原系統穩定性和測試精度。The mesoproterozoic mafic dyke swarms are extensively distributed in the central north china craton, which are not deformed and metamorphic, emplacing the pre - existed fractures, so the dyke swarms become the conspicuous marks to reconstruct the mesoproterozoic tectonic stress field of the central ncc. the mafic dykes in the northern block are transtensional while the dykes in the central and southern blocks are extensional. the mesoproterozoic tectonic stress field could be simulated on the analysis of the distribution and mechanical origin of the mesoproterozoic mafic dyke swarms in the central ncc. the simulation result shows that the mafic dyke swarms were formed in the extensional tectonic setting in the ncc in the mesoproterozoic time, which are related to the extension of the mesoproterozoic yanliao - zhongtiao aulacogens cross the central ncc
克拉通北部地塊的鎂鐵質巖墻群為張剪性,而中部和南部地塊為張性。根據華北克拉通中部中元古代鎂鐵質巖墻群的分佈和成因機制分析,來恢復模擬中元古代的構造應力場。數值模擬結果表明鎂鐵質巖墻群在中元古代形成於伸展的大地構造背景,與橫穿華北克拉通中部的燕遼-中條拗拉槽系的伸展作用有一定的聯系。Modification factors were given according to the relationship between elastic modulus reduction and tensile stress. the empirical elementarily formulas of damage evolution in tensile loading were given quantitatively, and verified by experiments
通過彈性模量衰減與應力變化的關系,確定了二維編織、三維編織c sic復合材料拉伸損傷的修正系數,初步定量給出了該材料拉伸損傷演化方程的經驗公式並通過實驗驗證。The results of quantitative analysis showed that the pre - tension deformation reduced the fatigue crack propagation threshold and increased the crack propagation coefficient, and consequently decreased the fatigue resistance of the part with mechanical damage
定量分析表明:預拉伸變形降低了疲勞裂紋擴展門檻值,提高了裂紋擴展系數,從而使管線在機械損傷的部位疲勞抗力降低。Abstract : the relationship between milling technology and using properties in yak hair sweater were studied in this paper. based on the experiment, the size shrinkage, strength, warmth retention property and elasticity of elongation of eighteen different samples were discussed, and the relationship between these properties and milling factors were analysed. some rules were discovered
文摘:研究了氂牛絨衫的縮絨工藝與其服用性能的關系.測試了經不同縮絨工藝處理后的18塊小樣的面積縮率、頂破強力、保暖率和拉伸彈性恢復率等指標.統計分析了縮絨工藝參數間關系,得到了一些規律In this paper, 130mm diameter hot - rolled bars ( 3 transus temperature is 798 c ) were used in experiments. the superplastic property of ti - 1023 alloy was studied systematically by the experiments of tensile and compression. the preparation method of fine - crystalline structure and the processing parameters of superplastic forging are optimized
本文以130mm熱軋棒材為原材料,通過超塑性拉伸和超塑性壓縮試驗,對ti - 1023合金的超塑性進行系統研究,研究坯料細晶組織制備方法,優化超塑成形工藝參數,為高筋薄腹板復雜形狀ti - 1023合金鍛件超塑性等溫模鍛工藝的制定提供試驗依據。Ltd. a coupled vibration method on suspended free poles is employed to determine the initial young ' s modulus at elevated temperatures, also the thermal expansion coefficients of fire - resistant steel
通過高溫下的恆溫加載拉伸試驗,得到不同溫度下耐火鋼的屈服強度、極限強度、延伸率、面縮率和應力應變關系,並測定高溫下耐火鋼的熱膨脹系數,採用懸絲耦合共振法測定高溫下耐火鋼的初始彈性模量。The relationship of true stress and true strain for the mid - strength weldable 1420 aluminum - lithium alloy has been investigated in this thesis by high temperature compression testing and high temperature tensile testing on different hot deformation conditions. the interdependence of flow stress, strain rate, strain and deformation temperature for the alloy at high temperature has been studied
本文通過高溫壓縮和高溫拉伸試驗,研究了中強可焊1420鋁鋰合金熱變形時不同變形條件下的應力-應變關系、變形條件對合金流變應力的影響;運用多元回歸分析方法,採用c語言編程確定了合金的本構關系方程;引入z參數,求解了部分材料常數,並用於材料的組織性能研究中。On the basis of the research by former people, the work of this paper includes several aspects as follow : throughout a great deal of experiment of the mechanics performance of 2d weave c / sic composite materials laminated plate, we simulated the nonlinear relationship between a and e in the tensile course ; and we inspected the original damages and the damages evolvement ; and we made the statistic analyses of the tensile strength. some important conclusions have been given in the paper
主要有以下幾個方面:在大量二維編織c sic復合材料力學常規性能的實驗基礎上得到了拉伸實驗中卸載點和卸載模量,卸載模量和加載斜率,加載斜率和應力等之間的關系,並在此基礎上得到了模擬同種材料拉伸曲線的非線性的應力?應變關系;配合我們的實驗過程進行初始損傷和缺陷的檢測以及實驗過程中材料損傷演化過程的動態無損檢測;對我們現有的二維編織c sic復合材料拉伸強度數據進行了分佈擬合。This paper mainly study two kinds of smart materials which are both reinforced by chopped carbon fiber mat but use two different kinds of polyester resin as matrix and discuss the influence of content of carbon fiber on conductivity. focus on the relationship between strain and volume resistivity under tensile condition influenced by the factors such as resin matrix and fiber content
研究了其含量與導電性之間的關系;重點對不同基體樹脂材料及不同碳纖維含量等因素對復合材料在單軸拉伸條件下,拉伸狀態下應變與體積電阻率之間的變化關系進行了研究;確定了電阻率與應變之間變化的數學關系。The regressive equation that described the relationship between resistivity and strain are determined. to prove the applicability of the relationship, we composite the conductive composite material prepared by chopped carbon fiber mat with glass fiber reinforced composites of different strain character and study the relations of strain to resistivity under tensile stress
為證實該關系的適用性,通過將短切碳纖維氈制備的導電復合材料與具有不同應變性能的玻璃鋼復合,對拉伸狀態下應變與體積電阻率之間的變化關系進行了研究,並用多元回歸的方法進行了數值分析,確定了電阻率與應變之間變化的數學模型。The paper focuses on the processing technique of wood flour - recycle polystyrene composite, and assesses the effects of wood flour contents, coupling agent contents and the rotate speeds of extruder on water uptake, tension strength, bending strength and dynamic mechanical properties. the results can be shown as follows : with the increasing of wood flour, composites gain higher water uptake but lower dynamic mechanical properties, the storage moduli ( e " ) and glass transition temperature ( tg ) decrease
較系統地研究了木粉含量、偶聯劑添加量和雙螺桿擠出機的螺桿轉速等主要擠出工藝參數對復合材料的吸水性能、拉伸強度、彎曲強度、動態機械性質(存儲模量e和損耗正切角tan )的影響規律,初步確定了適宜工藝條件,主要結論是: 1 )木粉含量的增加使得復合材料的吸水性能增加,動態機械性質下降。We first expand the nonlinear temperature - dependent convective and radiative heat transfer coefficient about the ambient temperature by taylor - series method, and then the crystal temperature and the pull rate as well as the bulk melt temperature are determined by the perturbation techniques in a simply analytical manner
分析之過程為首先將隨溫度變化之對流系數及輻射系數做泰勒級數展閉,再以攝動理論之技巧,同時求解晶圓棒之溫度、拉伸速度及溶解液之溫度。分享友人