potential fracture 中文意思是什麼
potential fracture
解釋
可能產生的裂縫-
And there is a growing interest in the development of meshless methods as the meshless characteristic has distinctive advantages to deal with high - speed impact, industrial forming, extremely large deformation, fracture and fragmentation problems, etc. it offers the tremendous value in theory and potential in industrial application
無網格方法是在近幾年迅速興起的一種數值分析方法，由於無網格特性對高速碰撞、超大變形、斷裂破壞等問題的分析具有明顯的優勢，對其的研究方興未艾。 -
Using the complex potential method in the plane theory of elasticity of an anisotropic body, a series solution to the stress field of a finite plate containing multiple cracks subjected to arbitrary loads is obtained by means of the faber series expansion, and the stress intensity factors at the crack tips are calculated based on the theories of fracture mechanics. equivalence yield stress is introduced in order to consider the effects of the plastic zones, with which the strip yield criteria is developed in the article so that the effects of structural size and the crack interactions on the stress distribution can be considered accurately. the effects of plate size, crack size and crack distributions on the stress intensity factors as well as the residual strength of the plate are studied detailedly
採用各向異性體平面彈性理論中的復勢方法，以faber級數為工具，得到了含多裂紋有限大板在任意載荷作用下應力場的級數解，並應用斷裂力學方法確定裂紋尖端的應力強度因子；引入當量屈服應力考慮裂尖塑性區的影響，提出基於帶屈服準則的剩餘強度分析模型，能夠充分考慮結構尺寸和裂紋之間相互作用對應力場的影響；通過數值計算詳細討論了結構尺寸和裂紋之間位置關系對應力強度因子和結構剩餘強度的影響規律，得到了一系列對工程應用具有實用價值的結論。 -
Four fundamental methods are introduced, namely well temperature, ground potential survey, microearthquake and radioactivity isotope, which were used to monitor the fracture geometry of fractured coalbed methane wells in north china
摘要介紹了井溫測試法、放射性同位素法、大地電位測試法和微地震測試法監測煤層水力壓裂裂縫的基本原理。 -
Application of conservative treatment on potential unstable thoracolumbar fracture
保守治療在46例潛在性非穩定性胸腰椎骨折中的應用 -
Author thinks that the direction of the maximum plastic distortion along a constant radius around the crack tip may be considered as the direction of shear - mode fracture ( named pmax - criterion ) and the load when located shear band prongs the ligament in the front of crack tip is regarded as the limited load of shear - mode fracture. ( 3 ) the fad ( fracture assessment diagram ) of titled crack is proposed based on achievements of mesomechanics about i - ii complex ductile fracture of metal, and the titled crack is classified two kinds : void - mode fracture is assessed by fracture assessment curve, and shear - mode fracture by limited load. ( 4 ) using a fe program based on plantle - ressue theory to calculate some mesomechanical parameters, a flange joint structure of a high pressure vessel ( design pressure 31. 4mpa and the thickness of the hemispherical head is half of that of shell. ) is analyzed to determine whether the structure under operation pressure is safe or not, forecast the mode of potential invalidation and argue for the rationality of design of the structure
試件的整體斷裂為剪切型，但在試件芯部裂尖鈍化區中部出現了韌窩型啟裂並有一定的擴展，說明局部較高的應力三軸度也會使韌窩型機制得以發展，但是不改變試件整體的剪切型斷裂模式；對韌性斷裂的剪切模式的細觀機理做了一定的探討，並且提出了含裂紋構件剪切型斷裂的宏觀判據：認為裂紋前方的集中剪切帶中與裂紋尖端等半徑處最大有效塑性應變出現的方向可以作為裂紋剪切斷裂的方向（可簡稱為_ （ pmax ）準則） ，集中剪切滑移帶貫穿裂紋前方承載韌帶時的載荷可以作為極限載荷；本文運用金屬韌性斷裂細觀力學在一復合型韌性斷裂方面的研究成果，採用失效評定圖的形式，提出了傾斜裂紋的安全性評定方法的基本框架。 -
Tial - based alloys with high specific strength are the most potential high temperature structural materials for aerospace application. however, the application of these materials is hindered by low resistance of damage, low room - temperature ductility and fracture toughness and high crack growth rate
Tial基合金比強度高，是最具潛力的航空、航天用高溫結構材料之一，但因其具有較低的抗損傷能力，較低的室溫塑性、斷裂韌性和高裂紋擴展速率，這些斷裂特性阻礙了這種材料的應用，因而仍有必要研究其斷裂機理。 -
It was shown that when the soil pressure on the stepped rsrw was relatively small, its distribution form was zigzag, and would be affected evidently by unloading function of the step ; the potential fracture surface of the stepped rsrw was obviously different from the 0. 3h fracture surface proposed by the usual hypothesis, and would change with height - width ratio of the wall ; finally, its deformation characteristics were different from the vertical rsrw with single step
測試表明：臺階式加筋土擋墻的墻後土壓力較小，呈鋸齒形分佈，明顯受臺階卸載的影響；潛在破裂面與0 . 3h破裂面假定有較大差異，並隨擋墻的高寬比變化而變化；變形特徵不同於單級直立式擋墻。
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