材料損壞 的英文怎麼說

中文拼音 [cáiliàosǔnhuài]
材料損壞 英文
damage of materials
  • : 名詞1 (木料) timber 2 (泛指可以直接製成成品的東西; 材料) material 3 (供寫作或參考的資料) ma...
  • : 名詞1 (材料; 原料) material; stuff 2 (喂牲口用的穀物) feed; fodder 3 (料器) glassware 4 (...
  • : Ⅰ動詞1 (減少) decrease; lose 2 (損害) harm; damage 3 [方言] (用尖刻的話挖苦人) speak sarcas...
  • : Ⅰ形容詞1 (不好的; 惡劣的; 使人不滿意的) bad 2 (表示程度深 多用在表示心理狀態的動詞或形容詞後面...
  • 材料 : 1. (原料) material 2. (資料) data; material 3. (適于做某種事的人才) makings; stuff
  • 損壞 : damage; breakdown; injure; spoil; break; spoilage; failing; failure; conkout; dysfunction; worsem...
  1. Abrasive wear may be defined as damage to a surface by a harder material.

    磨粒磨可定義為較硬的對一個表面的破
  2. Sicp / al matrix composites, with 5, 15 and 25 % volume fraction of sic particles, were prepared by vacuum hot - pressing sintering processing in this paper. based on mechanics properties, sem observation and energy dispersive x - ray analysis, the interface reaction phenomenon of sicp / al composites made by vacuum hot - pressing sintering, as well as the reinforcement and fracture mechanisms of this composite were analyzed. the dynamic responses of sipc / al composites were studied by a split hopkinson high - speed pressure bar impact system which strain rate was from quasistatic state strain rate ( 3. 3 10 - 3s - 1 ) to dynamic state strain rate ( 5. 2 103 s - 1 )

    本研究以武裝直升飛機防護裝甲為研究對象,採用真空熱壓粉末冶金燒結工藝制備了含sic顆粒體積分數分別為5 、 15和25的sic顆粒增強鋁基復合,結合其力學性能、掃描電鏡和界面微區能譜分析結果,分析了sic _ p al復合的真空燒結過程中的界面現象,以及增強和斷裂機理,並利用hopkinson高速壓桿沖擊實驗系統對其從靜態到動態(應變率為3 . 3 10 ~ ( - 3 ) s ~ ( - 1 ) 5 . 2 10 ~ 3s ~ ( - 1 ) )的壓縮破響應進行了研究,分析了不同體積分數sic _ p al復合高應變率壓縮載荷下,的變形和微觀傷機理,以及利用高速沖擊空氣炮測定了改復合制備剃度復合板的穿透性能。
  3. Such damage is usually found to have been caused by hydrometer misuse, especially with synthetic separators.

    通常所發現的這種是由於應用流速計不當造成的,尤其是使用合成隔板。
  4. 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 premonitor that the rupture of polymer material

    它是塑性變形的機制之一,同時又是宏觀破以前微觀上傷、破的開始,它代表微觀斷裂和屈服之間的一個中間狀態,可以看作是聚合物宏觀斷裂的先兆。
  5. The main difficulty was failure of refractories at high temperature.

    其主要的困難是高溫下耐火
  6. At the same time we study, analysis and discuss the action that non - linearity - stickiness - springiness and crazing damage of the pmma sample under creep though making us of the knowledge about the high molecule physics the damage theory of material of rheology of bodies with defects. through the study and theory analysis of single - axes stretching experiment in pmma sample under creep, take the surface crazing damage density of pmma sample as an variable, to look for a commonly rule that the crazing damage of pmma, and to offer a feasible damage model for the sake of study that of pmma ' s remoteness damage

    同時運用高分子物理、含缺陷流變性物體的理論等知識,對無孔洞pmma試件和有孔洞pmma試件蠕變條件下非線性粘彈性行為及其銀紋傷現象進行了研究、分析與探討,通過對蠕變條件下的pmma試件的單軸拉伸實驗研究和理論分析,以pmma試件的銀紋傷面密度值為傷變量,來嘗試尋求pmma銀紋傷的一般規律,為研究pmma的細觀傷提供了一種可行的傷模型。
  7. Energetic materials for defense. safety, vulnerability. audibert - koenen test. heating in a steel case with orifices

    國防用高能.安全易性. audibert - koenen試驗.在帶孔鋼殼體中加熱
  8. Under the complex loadings, the surface flaws of large complex structures and the original defects of materials would initiate the propagation of micro three - dimensional ( 3d ) cracks, and result in catastrophic accidents. for the limitations of the traditional theories of two - dimensional cracks, the safety of actual structures containing 3d cracks cannot be guaranteed completely without the out - of - plane stress constraint

    復雜應力作用下,宏觀復雜結構表面加工質量和本身固有缺陷以及外來傷等會引起三維裂紋的萌生、擴展,最終導致災難性的破,而傳統二維裂紋理論在解決實際三維裂紋問題時出現不足,無法完全保障結構安全。
  9. 2. because the fracture mode of 3d braided cmc is the interfacial fracture of mode i and mode ii, energy release rate gc and complex stress intensity factor kc was designated as characterization parameters of fracture toughness in the linear fracture theories. 3

    根據三維編織c sic復合斷裂韌性的表徵問題屬于線彈性理論范疇以及斷裂模式是界面傷破模式的實驗研究結果,提出了該的表徵參量應該使用與界面相關的型和型混合斷裂的能量釋放率g _ c ,或者使用復應力強度因子k _ c 。
  10. With the material dynamic constitutive equation including damage and the effect of stain rate the predictable formula about ballistic limit velocity of fiber composite target. secondly based on the damage feature about ceramic / fiber composite target caused by impact load, analysis model about defense performance of ceramic / composite material target is formed and the predictable formula about ballistic limit velocity is also given. lastly using the reflection and projectile theory of stress wave the paper discusses the design of ceramic / composite material target, optimizes the design of double layer ceramic / composite targets, gains optimal coefficient under certain area density and discusses the variety relationship of area density and thickness with optimal coefficient u nder some ballistic limit velocity 3

    首先,分析了纖維類正交鋪層復合靶板在沖擊載荷作用下的傷破機理,結合包含傷和應變率效應的動態本構方程,建立了纖維復合板彈道極限速度的預測公式;其次,根據陶瓷/纖維復合靶板在沖擊載荷下的破特點,建立了陶瓷/復合靶板抗彈性能分析模型,給出了彈道極限速度預測公式;最後,利用應力波反射和透射理論討論了陶瓷/復合靶板的設計問題,對雙層陶瓷復合靶板的優化設計進行了分析,給出了在一定面密度下的最佳優化系數,討論了一定彈道極限速度下的面密度和厚度隨優化系數的變化關系。
  11. Through structural analysis of traditional semi - rigid base course asphalt pavement which appears water damage, the paper reach the conclusion that water has an effect on material design parameter and pumping leading to the change of contact condition are the main factors

    通過對傳統的半剛性基層瀝青路面出現水進行結構分析,得知水對設計參數的影響和由於唧漿現象導致路面結構層層間接觸條件的變化是瀝青路面出現水的主要原因。
  12. Advances in damage analysis for carbon fiber - reinforced composite laminates with hole

    碳纖維增強復合含孔層合板傷破分析研究進展
  13. Using the complex potential method in the plane theory of elasticity of an anisotropic body, the series solution of finite anisotropic thin plate containing an elliptical inclusion is proposed with the help of faber series. a hybrid element with an elliptical inclusion for anisotropic materials is obtained by using the hybrid variable principle, and the element efficiency is verified by numerical examples. the state of the damage is modeled by an elliptical soft inclusion, and using the point stress criterion based on characteristic curve and yamada - sun etc. criteria, the prediction of the strength of a composite laminate with damage is set up

    首先基於經典層板理論,將復合層板的彈性問題化歸為均勻各向異性板來求解;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,給出了有限大含橢圓核各向異性板彈性問題的級數解形式;利用雜交變分原理,成功導出含橢圓核各向異性板雜交應力有限元,並用算例驗證了該單元的可行性和有效性;採用含剛度折減橢圓形彈性核的沖擊傷模型,引入基於特徵曲線和yamada - sun破準則的點應力判據,建立了含傷復合層板剩餘強度的分析方法;通過數值計算詳細討論了各種幾何參數對傷層板應力分佈、剩餘強度的影響,得到了一系列對工程應用具有實用價值的結論。
  14. In this paper, we take high molecule physics and the damage theory of rheologic material with lacuna as the basic, make the experiment as a mostly measure, take the pmma as a research object, to study the pmma ' s nonlinear viscoelasticity of high polymer. the technique showing minute details in minute view measure is used by the author to observe the change of crazing damage density follow the change of stress, time and temperature in term of creep and flab

    本文以高分子物理學、含缺陷流變性物體的理論為基礎,以實驗為手段,以工程中常用的pmma為研究對象,對pmma銀紋破的非線性力學行為進行了研究。作者採用顯微技術,對pmma在蠕變或鬆弛條件下,不同應力水平和不同基溫下的pmma銀紋傷進行了實驗研究。
  15. A damage model was applied to describe the c / sic composite damage with ae relative energy, and a damage criterion was present for the c / sics

    利用聲發射累積相對能量表徵傷,建立傷模型,給出判據。
  16. High molecule physics and the damage theory of rheologic material with lacuna are used in experiments to study the pmma ' s nonlinear viscoelasticity and changing depends on time and temperature when distorting and destroying. we try to seek a common rule to polymer ' s crazing damage, offer a viable damage model and measure to research polymer ' s minute damage

    本文運用高分子物理、含缺陷流變性物體的等理論,以實驗為基礎,對聚合物變形、破以及時間相依和溫度依賴性等非線性力學行為進行研究,試圖尋求聚合物銀紋傷的一般規律,為研究聚合物的細觀傷提供了一種可行的傷模型與方法。
  17. All machinery motion is relative movement relying on its " spares pairs. abrasion happened with relative movement, and abrasion is the main cause of surface damage, spares invalid, and material friction loss

    所有機器的運動都是依賴其零件副的相對運動,有相對運動就有磨,磨是導致表面、零件失效和耗的主要原因。
  18. The details as followed : 1. summarize and analyze the methods of meso - mechanics of concrete and researching documents on the theory of damage of concrete ; 2. based on the packing approach of spherical aggregates, a method generating polygon aggregate model of concrete was presented, by which the codes of aggregate packing and meso - meshes of finite element plotting were designed taking into account the actual aggregate content, grading, and aggregate configuration

    具體工作由以下幾個方面: 1 .分析總結了混凝土細觀力學分析方法和現有混凝土傷破理論的研究成果; 2 .在研究圓形骨投放方法的基礎上,提出了一種多邊形隨機骨投放方法,並編制了凸多邊形模型生成程序和細觀有限元剖分程序。這種生成方法所得到的凸多邊形骨模型既反映了骨的實際形態又維持骨的實際級配和含量。
  19. Base on the basic principle of continuum mechanics, 2 - d contact type model are derived using circular plate element. mohr - coulomb type failure criteria and failure coefficients related with stress ratio are used in this model to simulate the failure process. the wave propagation in an orthotropic plane under impact loadings was numerically simulated, by using this algorithm

    從連續介質力學的基本原理出發,推導基於圓盤單元的正交各向異性二維連結型離散元計算模型,在模型中採用了mohr - coulomb型破準則和與應變率有關的系數用以模擬的動態傷和破過程。
  20. Further, the mechanical behavior and fracture features under flexural load of the c / sic composites are discussed with mechanical properties contract to microstructure and cvi - pip process parameters. the multiple fracture phenomenon of the c / sic with high toughness connected to multiple interface fracture is found, which supplements the conventional composite theory on the relationship between strength and fracture mode

    聯系化學組成及微結構參數、工藝參數,進而研究了彎曲載荷下該c / sic復合的行為特徵和失效過程,發現了一種與多重界面失效緊密聯系的、高斷裂韌性的多重傷累積型現象,補充了傳統的脆性基體復合強度一斷裂韌性理論。
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