crack test 中文意思是什麼
crack test
解釋
卷解試驗-
There are the production lines established of intermediate - frequency melting, silicasol shuck, precision casting and metal ceramic, and 250 universal devices suck asvacuum melting electric furnaces, high - temperature and intermediate - temperature heat treatment electric furnaces, digitai - control lathes, milling and drilling machines, coreless millers, spherical surface millers, standing milling machines and so on, lt has established the central measuring roomm physicallab, chemical lab, metallic phase lab, crack detection test lab, seat ring lab, rocker lab and ducgt trestle lab, our esported gas engine valve seat to america was rewarded the second prize in terms of sichuan high - quality product
建有中頻熔煉真空熔煉硅膠溶模精密鑄造粉末冶金生產線。有中頻電爐真空熔練電爐高中溫熱處理電爐數控車床鉆銑床無芯磨外園磨立磨等通用設備250臺套。有中心計量室物理化學金相探傷檢測及座圈搖臂導管臺架實驗室。 -
Many studies in the related area of stress corrosion or subcritical crack growth use simplified test systems.
許多有關應力腐蝕或亞臨界裂紋發展領域的研究使用了簡化的試驗系統。 -
Through the dry and wet cycling experiment on unmarred beam and pre - cracked beam, the position of initial corrosion and influence of crack on the reinforcing bar corrosion are studied in this paper both the flexural bearing capacity performance and the material mechanical performance of the beams are studied on the test of full scale concrete beam a model of 3d fem is established to simulate the state of the actual full - sized rc beam and electronic accelerating test beams, computational results and test results are compared
通過對混凝土梁的干濕循環試驗，研究了在混凝土梁中的鋼筋初始銹蝕情況，以及不同寬度的裂縫對于鋼筋初始銹蝕的影響。通過對足尺銹蝕混凝土梁的試驗，研究了混凝土梁在海洋環境侵蝕作用下的材料性能的變化和抗彎承載能力的變化。 -
The method for measuring the plane strain fracture toughness klc has been introduce to high polymer bonded explosives ( pbx ) by systematically studying technologies concerning the shape of specimen, the depth and its machining of crack, the loading rate, the measurement of critical fracture load, and the computation of klc, etc. the method has been used to test and study klc of three typical high polymer bonded explosives which are j2, jl, j3 respectively both at normal temperature and unmoral temperature
本文以高聚物粘結炸藥為研究對象，對測試高聚物粘結炸藥的平面應變斷裂韌度所涉及的樣品形狀、裂紋深度及裂紋制備、加載速度、臨界斷裂載荷p _ q的確定及平面應變斷裂韌度k _ （ ic ）的計算等方面進行深入研究，建立了較為完善的炸藥平面應變斷裂韌度測試方法。 -
Standard test method for cold - crack resistance of upholstery leather
傢具革耐凍裂性的標準試驗方法 -
The shear mechanism, failure mode, deformation capacity, bearing capacity and the reliability of the anchored angle steels of the wrapped steel concrete cast - in - site frame typical story exterior joints under the middle and high axial compression ratio ( n = 0. 3, 0. 5, 0. 6 ), the working performance, failure mode, and the shear capacity of top story joints under the crack moment, the hysteresis characteristic and the dissipation energy capacity of the test joints are all analysed based on the 1 / 4 model pseudo - static tests of five specimens of wrapped steel concrete cast - in - site frame exterior joints, which varied in axial compression ratio, distribution of the beam angle steels and the stirrup ratio
基於上述分析，本次試驗通過五個外包鋼混凝土邊節點1 4比例模型的偽靜力試驗，以柱的軸壓比、梁角鋼布置形式、配箍率等為主要參數，分析外包鋼混凝土現澆框架一般層邊節點在中高軸壓比（ n = 0 . 3 、 0 . 5 、 0 . 6 ）條件下，節點的抗剪機理、破壞模式、變形能力、承載能力和角鋼錨固的可靠性；分析了頂層邊節點在張開彎矩作用下的工作性能、破壞模式和抗剪承載力；分析了試驗節點的滯回性能和耗能能力。 -
The main beam of type 4sw - 40 potato digger easily engenders crack or breaking damage in the practical application. therefore, by means of modern test technology, the paper does some research on the vibration of the separating sieve and its influence on dynamic load of the main beam under the condition of laboratory
4sw ? 40型馬鈴薯挖掘機在實際生產中主粱易出現裂紋或斷裂破壞。為此，本文提出在實驗室條件下，利用現代測試技術，就分離篩的振動及其對主梁的動載作用作研究。 -
Methods of test for adhesives - physical tests on hot - melt adhesives - determination of low temperature flexibility or cold crack temperature
粘合劑試驗方法.第h2部分:熱熔粘合劑物理試驗.低溫撓性及冷爆裂溫度測定 -
Ncls standard test method for notched, constant ligament - stress test to determine slow - crack - growth resistance of hdpe resins or hdpe corrugated pipe
測定hdpe樹脂或hdpe波紋管抗慢性裂紋增長的凹口恆定帶狀應力 -
Test and analysis results indicate that some little polypropylene fiber in cement concrete can not only reinforce the load _ carrying capacity and rigidity, but also control the crack width and strengthen the ductibility of beams
對比分析結果表明，適量聚丙烯纖維的摻入能夠提高梁的承載能力和剛度，並能限制裂縫寬度，增加梁的延性。 -
The test of low cycle fatigue characteristics for 45crnimova steel and in - situ observation on surface crack propagation
鋼的低周疲勞特性和表面疲勞裂紋的在位觀測 -
According to the results of the compaction test and hearing ration test, it is discovered that the filled soil also has the swelling property after being compressed, which may result in the crack of the subgrade with the change of the water contents
通過對路基填土的擊實試驗和承載比試驗表明，填土壓實之後具有一定的膨脹性，在含水量變化差異性影響下的脹縮變形可能導致路基開裂。 -
From the test results, suggestion that negative moment reinforcement should run through the specimens to postpone the crack ' s appearance and improve the specimens " fire endurance are also proposed
由此提出了拉通板頂負筋的建議，以延緩橫向貫通裂縫的出現，達到保護預應力筋和提高連續板耐火性能的目的。 -
The main purpose of this paper is to study crack growth rate of a class of nonlinear viscoelastic materials under the condition of constant load and small - strain. in this paper : the new test program is raised by referencing the existing test programs and by our trial and error ; in the new test program, facilities involved in the nonlinear viscoelastic crack tests are relatively few, the test process is relatively simple and the data obtained from the experiments are credible. on this basic, the calculation of j integral of nonlinear viscoelastic double cantilever beams specimens and the parameter of fracture work of corresponding nonlinear viscoelasticity are derived
具體成果包括： 1 、證實了雙懸臂梁試件用於非線性粘彈性裂紋擴展實驗研究的優點：雙懸臂梁試件在實驗中能觀測到的擴展過程持續時間比較長，在計算j積分時，計算方法簡單； 2 、得到了改性聚丙烯材料用於非線性粘彈性裂紋擴展實驗的兩種有效的試件構形和相應的試件尺寸；採用不斷改善夾具的方法使得加載穩定； 3 、經過連續四個多月的時間得到了一組有用的實驗數據； 4 、得到了裂紋長度與時間的關系、裂紋擴展速度與時間的關系、裂紋擴展速度與裂紋長度的關系。 -
Finally, an energy approach is combined with the fem in the simulation of the crack propagation along the fiber / matrix interface in a pull out process. the simulated results are in nice conformity with experimental results. the second part of the research deals with the characterization of the failure process in the fragmentation tests, which is one of the most frequently used test methods in studying thermal mechanical properties of fiber / matrix interfaces
在這一部分工作的最後，採用能量法與有限元法結合起來，模擬纖維抽拔試驗中裂紋的擴展:針對以往研究工作中的不足之處，在模擬中使用能量釋放率，在表徵界面破壞時，所使用的應力強度因子考慮了纖維和基體兩種材料的不同屬性，並考慮裂紋尖端的單元奇異性，來研究裂紋長度和溫度對裂紋擴展的影響。 -
Because the best grade limits does not vary with material property, firstly, we can confine material grade to the best grade limits when doing subbase mixture design, secondly, after systematic temperature contraction test, aridity contraction test and compressive strength correction test, we can determine the best cement percentage which has the best crack resistance property
因為最佳級配范圍是與粒料的粒徑大小有關的，所以在基層材料配合比設計時可首先將材料級配限制在最佳級配范圍以內，然後通過系統的溫縮、干縮性能試驗以及抗壓強度校核試驗，最終確定抗裂性較好的合理水泥劑量。 -
The following conclusions are gained : ( 1 ) the located shear band prongs the ligament near the top crack tip and the structure may occur shear - mode fracture at the angle of 155 ? to crack when load is 87. 92mpa ; the mode of fracture of the flange joint structure is not possible to be void - mode ; ( 2 ) it is proved that loading and then unloading repeatedly can not increase the possibility of invalidation of the structure when the times of loading and unloading are not too more when load is operating pressure ; the structure is safe when the vessel is operating ; ( 3 ) in the fe model of the thesis, not considering the influence of water pressure test which is in the process of fabrication of vessel in fe results in larger deviation in analysi
得出了以下結論：在8792mpa的載荷下筒體一封頭連接結構處的集中剪切帶貫穿韌帶，可能發生沿與原裂紋線成155 「角方向剪切型斷裂；筒體一封頭連接結構不可能發生韌窩型斷裂； （ 2 ）在工作壓力下進行次數不多的反復加、卸載，結構不會破壞，也不會喪失安定性：結構在工作狀態下是安全的； m在本文的彈塑性有限元模擬計算中，對于裂紋尖端進行力學分析時，不考慮壓力容器製造過程中水壓試驗的影響，將導致計算結果出現較大的偏差； （ 4 ）筒體完全屈服時的載荷為92石3mpa ，封頭完全屈服時載荷為86 -
In order to understand the characteristics and mechanism of flow washout for the crevice of core wall in earth - rock dam, according to the exemple of crack washout test for the core of heihe dam, constant water level washout test and changing water level washout test are adopted differently, the process of test and the character of the flow washout for the core crack are gone into particulars
摘要為了解水流沖刷作用下反濾層對土石壩心墻裂縫發展保護作用的特點和機理，以黑河土石壩心墻裂縫沖刷試驗為例，分別採用常水頭和變水頭兩種方法，探討了土石壩心墻裂縫在水流沖刷過程中的特點。 -
Test analysis of distribution feature of tectonic crack in lu ' an coal mine
潞安礦區構造裂隙分佈特徵的實測分析 -
Y - slit crack test tig
形坡口裂縫試驗
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