tensile crack 中文意思是什麼
tensile crack
解釋
張斷裂-
Products function : put our “ sun shine ” brand carbon steel fiber evenly seep into concrete to form steel fiber reinforced concrete and it can decrease the thickness of reinforced concrete by half, it not only shorten the project time, save the material and manpower expense, bring distinct economic benefit, but also increase the performance of crack resistance, percussion resistance, tensile strength, bend resistance. scosspr resostamce amd wear resistance of the reinforced base materials. if the weight ratio of 2 % steel fiber seep into the concrete, it can solve the brittleness problem of the concrete, in the condition of 60 % ralative air humidity, after 21days air - dry, even 520 days air - dry, it ' s difficult to find any crack by eyesight, the bend resistance for the steel fiber concrete is 140 times stronger than the concrete without steel fiber, the capability of impact resistance increase 10 times
產品功能：將本公司「雙興」牌碳鋼纖維系列產品均勻地摻入混凝土中，形成鋼纖維增強混凝土，可使工程中鋼筋混凝土的施工厚度降低一半，不僅縮短了施工工期，節省了材料和人工費用，帶來顯著的經濟效益，且增強了基體的抗裂、抗沖擊、抗彎、抗剪、耐磨擦等性能，如摻入本公司2 %鋼纖維的混凝土，不僅解決了混凝土的脆性問題，在空氣相對濕度60 %的條件下風干21天後，甚至在風干520天，肉眼很難發現裂縫，摻入鋼纖維后的增強混凝土比不摻鋼纖維的混凝土抗彎強度提高140倍，耐沖擊荷載提高10倍。 -
The author advances that the shear connector is simulated by two spring elements, which are vertical to each other and parallel to the interface between steel and concrete, and one multipoint constraint element, mpc element, which is vertical to the interface. the author also puts forward that the crack of the deck is simulated by the gap element which ca n ' t support longitudinal tensile force but can support longitudinal compressive force
提出了以正交的兩個平行於鋼和混凝土界面的彈簧單元及一個垂直於界面的多點約束（ mpc ）單元來模擬剪力鍵，以小間隙接觸（ gap ）單元來模擬混凝土橋面板的開裂，模型中忽略了混凝土板與鋼梁接觸面間由摩阻而產生的粘著力。 -
They can be perfectly applied in engineering, because they are described only by two elementary parameters of the material : the tensile strength oc and the plane strain crack toughness km.
這些準則均基於兩個基本材料參數：抗拉強度_ o和斷裂韌度足k _ 10c ，因而，便於工程應用。 -
To the northwest area climate, to use the glasgrid which has the next characters : the high tensile strength, the low elongation, the high modulus of elasticity and so on, to absorb the crack of asphalt pavement on a semi - rigid type
計算、實驗室試驗及最終的現場試驗表明，對試驗路? ?寧夏古王高速公路而言，採取加鋪玻璃纖維格柵來降低溫縮型反射裂縫的措施是非常有效的，其鋪設位置宜在基層頂。 -
Pent notch tensile test to measure the resistance to slow crack growth of polyethylene materials for pipe and fitting products
管和管件用聚乙烯材料耐慢速裂紋伸展的測定的缺口拉伸試驗 -
The control parameters and growth lives of cracks are calculated using the method of submodel. come to the conclusion that the results of life is safe while the average stress at crack is used as the remote tensile stress
研究表明，採用子模型法求裂紋擴展壽命研究時，用裂紋面原有位置處的中值應力作為遠場應力，可以得到偏安全的計算結果。 -
The expansive property of concrete curing in water is better than that curing in air. the curing time of multiple anti - cracking and impermeability concrete can not less than 14 days. ill to take all account of the factors such as raw materials, construction, curing, and tensile strength, limit tensile strain, etc., which have effect on anti - cracking property of concrete, the overall crack probability is brought forward to access anti - cracking property of concrete, with aid of mathematics
為了全面地考慮原材料、施工、養護、抗拉強度和極限拉伸率等因素對混凝土抗裂性能的影響，利用數學概率分析方法，引入體積開裂概率的概念評估混凝土的抗裂性能。應用材料復合技術，無機-有機多組份復合，研製出一種新型復合抗裂材料，提高混凝土的抗裂防滲性能，且滿足混凝土的強度和工作性要求。 -
Test method for notch tensile test to measure the resistance to slow crack growth polyethylene pipes and resins
測量聚乙烯管和樹脂抗裂紋緩慢增長的切口拉伸試驗方法 -
Standard test method for notch tensile test to measure the resistance to slow crack growth of polyethylene pipes and resins
測量聚乙烯管和樹脂抗裂縫緩慢擴展的切口拉伸試驗用標準試驗方法 -
The strength and process of crack propagation for tensile compression and three - point - bend are simulated by numerical analysis. the purpose of the paper is to research the relation between meso - level structure and macromechanics characteristics of concrete and to popularize iem, and to build a bridge between them
本文旨在應用界面元方法研究混凝土的細觀結構與宏觀力學性能的關系，為混凝土力學性能的數值模擬及界面元的推廣開辟新的途徑。 -
Lastly, the rule of fatigue crack appear in preexisting cracks tips is established according to the principle of maximal tensile stress using the theory fracture and damage
最後，運用斷裂損傷理論，在最大周向拉應力理論的基礎上，建立了循環加載下預置裂隙端部疲勞裂紋的起裂準則，並用試驗結果進行了驗證。 -
In harsh climate region, mere exists obvious local stress concentration near the upstream and downstream of the exposed - in - winter horizontal surface of the rcc dam, and the surface of spillway bucket though heat insulation is applied on the surfaces, tensile stress still exceeds the allowable one of concrete. this paper puts forward to adopt preset crack to avoid occurring more cracks. the special crack model is applied to simulate the dam preset crack, and the joint model of fracture mechanics is induced into strain - soften model
在結構措施方面，針對嚴寒地區高碾壓混凝土重力壩壩體越冬層面的上、下游面附近及溢流壩堰面反弧段表面有明顯的局部應力集中象現，在已採取一定的表面保溫防護的條件下，拉應力仍然超過混凝土容許拉應力，開裂難以避免，進而提出設置碾壓混凝土壩表面預留縫結構措施並對該措施進行深入研究，包括預留縫的擴展穩定和壩體沿預留縫的穩定性，以避免大壩在無措施部位開裂，解決大壩越冬層面水平施工縫的開裂問題。 -
Based on investigating a large amount of documents, the fatigue crack propagation behavior of mg alloys am50 & az91 is studied in this paper, as well as the tensile mechanical properties at elevated temperature. micro - mechanics of tensile deformation and the fcpr are also investigated by sem & tem
本文在查閱大量相關文獻基礎上，對az91 、 am50鎂合金的疲勞裂紋擴展特性和高溫拉伸力學性能進行了一定的研究。藉助于掃描電鏡和透射電子顯微鏡，分析了拉伸變形和疲勞斷裂的微觀機制。 -
The effect of the crack eccentricity ratio on the stress intensity factor and the ultimate tensile strength for cracked ductile plates was investigated in this paper
摘要疲勞裂紋對船舶結構強度具有不可忽視的削弱作用，在過去的研究中，主要從斷裂力學的角度對疲勞裂紋應力場進行分析，而對于靜態裂紋板的極限強度的探討相對較少。 -
Two pieces of improvement on the crack width control method using nominal tensile stress for prestressed concrete flexural member
對用名義拉應力控制預應力混凝土受彎構件裂縫寬度方法的2點改進 -
At first, ploygon aggregate structure of concrete is randomly generated in two - dimensional plane with monte carlo method on the meso - level. then, the growth process of a crack of concrete 3 - point bending beam specimen is analyzed by fem, according to the criterion of maximum circumferential tensile stress. and the path of crack to spread in mortar, aggregate and interfaces of them is gained by the ultimate fracture criteria in construction standard that the width of crack should not be more than 0. 2mm
首先，在細觀層次上，根據蒙特卡羅隨機抽樣原理，在二維平面上建立了混凝土多邊形隨機骨料結構模型，然後採用有限元計算方法，根據最大周向正應力準則，對三點彎曲梁構件進行了開裂過程的模擬，並以建築規范中構件裂縫小於0 . 2mm的要求為最終破壞標準，得出了裂紋在基質、骨料及界面的擴展路徑。 -
During the fabrication or service, if the applied tensile stresses exceed the probabilistic tensile strength of silicon, then failure will occur. even a tiny crack will bring tremendous damage to devices and circuits. especially nowadays, with the increasing of silicon wafer diameter, warpage in heat treatment, defects and dislocations generated in silicon often become critical problems in ulsi devices fabrication
特別在大規模集成電路與器件生產中，一個微小的裂紋就可能導致后道工序中電路與器件的完全損壞；而且在熱處理過程引起的翹曲，使光刻精度下降；在矽片內部產生的氧沉澱及位錯等缺陷，會導致集成電路或器件的漏電流增加，使器件失效。 -
By comparing the fracture toughness ( kic ), the fracture energy ( gf ) and the crack tip opening displacement ( ctod ) of the same strength grade concrete, it is found that the values of the fracture toughness ( kic ), the fracture energy ( gf ) and the crack tip opening displacement ( ctod ), tested by three - point - bending method and wedge - split tensile method approach, so it is proved that the fracture toughness ( kic ), the fracture energy ( gf ) and the crack tip opening displacement ( ctod ) are related to its own properties such as material, specimen size, and crack size, but unrelated to the test - method
通過比較三點彎曲法和楔入劈拉法測定的相同強度等級混凝土的斷裂韌度k _ （ ic ） 、斷裂能g _ f以及裂縫的尖端開口位移ctod ，發現兩種試驗方法測定的斷裂韌度k _ （ ic ）斷裂能g _ f以及裂縫的尖端開口位移ctod的數值接近，從而證明混凝土斷裂韌度、斷裂能、 ctod的值僅與材料、試件尺寸、裂縫尺寸等試件自身的性質有關，而與試驗方法無關。 -
Standard test method for evaluation of stress crack resistance of polyolefin geomembranes using notched constant tensile load test
用缺口恆定拉力荷載試驗評價聚烯烴土工薄膜抗應力扯裂的標準試驗方法 -
3 ) based on the bond stress distribution function at the concrete - steel interface, a stress - strain relationship for cracked reinforced concrete tensile members is derived, and thereby an analytical model is proposed. by introducing a crack strength expression, the influence of non - uniform distribution of concrete stress in transverse and longitudinal directions in a reinforced concrete tensile member on concrete cracking is taken into account
3 ）基於鋼筋混凝土間的粘結應力分佈函數，推導了開裂后的鋼筋混凝土軸拉構件的應力應變關系，建立了開裂分析模型，並通過引入鋼筋混凝土構件開裂強度表達式，考慮了混凝土應力在構件縱、橫兩個方向不均勻分佈對鋼筋混凝土構件開裂的影響。
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