線性斷裂力學 的英文怎麼說

中文拼音 [xiànxìngduànlièlìxué]
線性斷裂力學 英文
linear fracture mechanics
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 斷 : Ⅰ動詞1 （分成段） break; snap 2 （斷絕;隔斷） break off; cut off; stop 3 （戒除） give up; abstai...
  • 裂 : 裂動詞[方言] （東西的兩部分向兩旁分開） open
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 學 : Ⅰ動詞1 （學習） study; learn 2 （模仿） imitate; mimic Ⅱ名詞1 （學問） learning; knowledge 2 （學...
  • 線性 : [數學] [物理學] linear; linearity線性代數 linear algebra; 線性方程 linear equation; 線性規劃 line...
  • 斷裂 : break; disrupt; flying off; fracture; fragmentation; out break; rift;crack;bursting;rupture;rendi...
  1. The basis of linear fracture mechanics is the paper of griffith which was unrecognized for thirty years.

    線性斷裂力學的基礎是Griffith的論文，但這篇論文三十年來都沒有得到承認。
  2. Safety of structures is a common and important problem in the mechanical engineering. recent years there is a trend of developing unified theory of fatigue and fracture to describe the life - cycle damage behaviour of structures. researches on safety guarantee are going toward multi - method synthesis, system micromation, network availability and life - cycle information management

    結構的安全性一直是工程中普遍關心的重要問題，結構強度學逐漸發展到疲勞斷裂統一理論，結構安全保障手段已向多方法、微小化、網路化和全壽命在線保障與監測發展，建立全壽命安全保障系統，涉及材料、機械、力學、電子等學科的交叉融合。
  3. First, the basic mechanical capability and creep were proceeded on the material test system with the modified three point bending creep fracture test. the modulus and fracture toughness and tensile strength was attained and creep curve in 200 temperature was also presented. applying basic damage mechanical theory, thermal damage analyses were performed induced in fracture toughness and modulus, the practical formula of damage factors varying with temperature and time was given

    首先利用改進的三點彎曲試驗在mts實驗機上進行了巖石力學性能和蠕變測試，得到了花崗巖在溫度影響下的彈性模量和斷裂韌度以及抗拉強度變化規律，並得到了200下北山花崗巖蠕變全過程曲線。
  4. A general consensus exists related to the influence of slow crack propagation ahead of the crack tip upon the nonlinearity observed in the typical load - deflection response of the concrete specimen, namely, concrete exhibits somewhat quasibrittle behavior, which has been verified by the inapplicability of the conventional linear elastic fracture mechanics ( lefm ) and fracture models suitable for metal - like materials

    現在已經意識到，混凝土在其典型的位移曲線中呈現出的非線性特徵是由於裂縫在端部的緩慢擴展引起的，可以認為是混凝土的一種半脆性性能。這是在發現傳統的線彈性斷裂力學（ lefm ）和適合金屬類材料的斷裂模型不適用於混凝土研究時得出的結論。
  5. The analysis of cracking in steel bridges can usually be accomplished by using linearelastic fracture mechanics.

    通常可用線彈性斷裂力學進行鋼橋裂紋分析。
  6. 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
  7. The basis of linear fracture mechanics is the paper of griffith which was unrecognized for thirty years

    線性斷裂力學的基礎是griffith的論文，但這篇論文三十年來都沒有得到承認。
  8. ( 7 ) basing on defining damage variable with flaws in rock, this paper uses linear viscoelasticity fracture mechanics to set up a damage reep model and analyses the model

    （ 7 ）在用巖石中大小、方位和位置均為隨機分佈的裂紋定義損傷變量基礎上，利用線粘彈性斷裂力學原理對考慮裂紋內水壓的巖石的損傷蠕變問題進行了建模和分析。
  9. I. a mtil ( iaxial elastic - plastic hardening - sofling constitutive model of concrete is proposed iii order to offer a nonlinear material model of concrete for space restoring force analysis of reinforced concrete members taking into account the softening behavior of concrete. the concrete material model is incorporated the elastic - plastic hardening fracturing constitutive model of concrete with the plastic - fracturing theory of concrete, modified without defining two loading functiomis, and based on five parameter power function failure criterion proposed by guo zheng - hai etc from tsingliua ( jniversity, or three parameter unified strength theory proposed by yu mao - hong from x ian iiaotong university

    1 、將砼彈塑性硬化斷裂本構模型與塑性斷裂理論結合起來，並加以改進，但無需定義兩個加載面，以清華大學過鎮海建議的五參數冪函數或以西安交通大學俞茂宏建議的，參數統一強度理論作為砼的強度破壞準則，建立了砼多軸彈塑性硬化松馳本構模型，能為鋼筋砼構件空間恢復力分析提供砼非線性材料模型，並能反映砼材料的軟化段。
  10. Linear elastic dynamic fracture mechanics are adopted to analyze the working characters of the semi - rigid asphalt pavement with the reflective cracking. it is successful to simulate the crack expansion process based on elastic damage theory, at the same time the fatigue life is forecast. the research findings are valuable for the pavement engineering practice on the soft clay ground

    本文分析路表變溫對軟土地基上半剛性路面結構體的作用時，考慮了路表降溫導致瀝青混凝土回彈模量的非均勻性，採用線彈性動斷裂力學分析軟土地基上含反射裂縫半剛性路面結構體的工作性狀。
  11. At the same time in this paper we analyze nonlinear behavior of masonry through finite element method program and obtain its load when the wall start to crack and when it destroy, the p - u curve and so on. a comparison has been made between the data obtained from the experiment and the calculated through finite element method program so that we can study the cause of crack. in this paper we use finite element method to study concrete ' s character to analyze masonry, satisfactory results have been attained

    因此本文在對灰砂磚砌體進行力學性能試驗的基礎上，分析其裂縫產生的破壞模式與開裂機理，並論述了將斷裂力學知識運用於研究砌體裂縫問題的可行性；同時，本文運用有限元方法對結構低周反復加載靜力試驗所做的灰砂磚墻片進行非線性分析計算，得出墻片的開裂荷載、極限荷載、 p ? u曲線，裂縫在墻體上的分佈等，與試驗所得數據對比，以便於研究裂縫的開裂機理，並將研究混凝土的有限元方法運用到對砌體的研究中，取得了較滿意的結果，為類似的試驗分析提供了一條新的思路。
  12. The particularity of application of principles of linear - elastic fracture mechanics to wood and fracture parallel to grain

    線彈性斷裂力學原理在木材中應用的特殊性與木材順紋理斷裂
  13. Linear elastic fracture mechanics, lefm

    線彈性斷裂力學
  14. Linear elastic fracture mechanics

    線彈性斷裂力學
  15. The strain softening of dam body and foundation is the necessary condition for dam instability. according to observation data of dam cracks, a gray cusp catastrophe model is established to judge the stability of the crack. according to the slope observation data of a certain hydropower plant, a nonlinear dynamic model is developed by means of reversion and the lyapunov exponent spectrum, and the lyapunov information dimension are calculated for judgement of the stability of the slope

    （ 5 ）基於變分原理，研究建立了能量形式的失穩準則，並說明壩體、巖基的材料具有應變軟化的性質，是大壩失穩的必要條件；並利用大壩的裂縫實測資料，建立了相應的灰色尖點突變模型，由此判斷裂縫的穩定性；根據某水電站庫區滑坡體的變形實測資料，反演其非線性動力學模型，進而計算lyapunov指數譜、 lyapunov信息維來判定邊坡的穩定性及穩定程度。
  16. According to the relationship between material fatigue performance curve and concerned parameters in fracture mechanics, the relationship between fatigue life and crack half length is obtained, that is equivalent crack length of fatigue life. the function relationships between these two aspects are constructed. the experiment data show that this method can express the same character of fatigue life of all kinds of materials and experiment data acquired from different materials can be used each other

    通過材料力學疲勞性能曲線和斷裂力學之間有關參量間的演變關系，得到了疲勞壽命與裂紋半長的關系，即疲勞壽命的折算裂紋長度，建立了兩者之間的函數關系並利用這個函數關系說明了疲勞壽命的切線模量因子法，能反映各種材料疲勞壽命的共同變化規律，試驗數據可在不同材料之間互相參考使用，具有重大意義。
  17. To describe the nonlinear deformation and fracture characteristics of the concrete and to keep the projectile - concrete interface clearness, the concrete was divided into smooth particles and computed by sph method but the projectile was divided into finite elements and computed by finite element method

    為了既能描述混凝土的非線性變形及斷裂特性又要保持分析過程中材料界面的清晰，混凝土劃分成光滑粒子並使用無網格光滑粒子動力學演算法，而彈體劃分成有限元網格並使用有限元演算法。
  18. It is one of mechanisms of plastic distortion, at the same time it is also the beginning of microcosmic damage and rupture before the macroscopical destroying of materials, it representatives a mid - state between materials " macroscopical rupture and bend, it is considered a premonitory that the rupture of polymer material, which get common attention by scholar inside and outside nation. therefore, the research for engineering polymer in mechanic action of non - linearity destroy such as distortion, destroy and depe nd on time and temperature is valuable in theoretic research and actual application, which offer the important theoretic gist for changing complex material ' s capability and actualize polymer ' s perfect application with high quality of capability in engineering

    同時，銀紋化和銀紋損傷是高聚物特有的一種現象，細觀層次的銀紋引發、生長和斷裂在聚合物損傷斷裂的整個過程中起著承前啟后的作用，它是溝通宏、微觀變形機制的橋梁，是材料塑性變形的機制之一，同時又是材料宏觀破壞以前微觀上損傷、破壞的開始，它代表材料微觀斷裂和屈服之間的一個中間狀態，可以看作是聚合物材料宏觀斷裂的先兆，受到國內外學者們的廣泛關注。因此，開展工程聚合物變形、破壞以及時間相依和溫度依賴性等非線性力學行為研究，探討聚合物破壞過程中的非線性力學行為，為聚合物及其復合材料的改性、實現聚合物的工程化與高性能化提供重要的理論依據，具有重要的理論研究意義和實際應用價值。
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