crack propagation energy 中文意思是什麼

crack propagation energy 解釋
裂紋擴展能量
  • crack : vt 1 使破裂；敲破，敲碎，砸碎（陶器等）；嗑（瓜子等）；【化學】裂化（石油等）。2 把（槍打得、鞭子...
  • propagation : 持續培養
  • energy : n. 1. 干勁，活力。2. （語言、行為等的）生動。3. 〈pl. 〉 （個人的）精力；能力。4. 【物理學】能，能量。
  1. 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。
  2. A new method for calculating the strain energy release rate of delamination crack propagation at an interface between dissimlar materials was suggested by using the j - integral with a small flat rectangular contour near the crack tip

    提出了一種通過特定的扁平小矩形路徑j積分，計算電子封裝中異質界面分層裂縫擴展能量釋放率的新方法。
  3. Then, the half - empirical paris equation, which can be used as a design base of flip chip package reliability, have been determined from the crack propagation rates da / dn measured and the energy release rates g simulated

    然後由實驗測得界面裂縫擴展速率和有限元模擬給出的能量釋放率，擬合得到可作為倒裝焊封裝可靠性設計依據的paris半經驗方程。
  4. Distortion energy criterion for mixed mode crack propagation

    復合型裂紋擴展的形狀改變比能準則
  5. However, the energies associated with the crack propagation are relatively high. after the filaments are treated by plasma for 6 minutes, the maximum load increases and initial energy is greater than 18. 57 %

    結果表明，未經處理的芳綸環氧界面剪切強度較小，在較低載荷下就出現初始裂紋，極限載荷相對較小，引發能較小，但所吸收的擴展能相對較多。
  6. Wherefore, other two energy - based fracture parameters are put forward : the stable fracture energy gfs, indicating the average energy dissipation during the crack stable propagation and the unstable fracture energy gfu, corresponding to the crack unstable fracture stage. wedge. ? splitting specimens are tested with a view to understanding those two parameters " size effect in terms of the initial crack length a0

    本文提出兩個能量型斷裂參數即穩定斷裂能g _ （ fs ）和失穩斷裂能g _ （ fu ）分別表示裂縫穩定擴展和失穩擴展階段的能量損耗，並採用楔入劈拉試件（ ws ）對這兩個參數相對初始縫長_ 0的尺寸效應進行了分析。
  7. At the same time, the energy absorbed in the crack propagation phase decreases relatively that lead to overall energy absorption of the composites increases slightly, it is greater than 12. 89 %. by observing the appearance of the damage area, it can be found that the mode of damage is influenced by the interfacial shear strength. if the interfacial shear strength is low, fiber pull - out is the primary energy - absorbing mechanisms, whereas the dominant energy - absorbing mechanisms changes into fiber / matrix debonding and delamination when the interfacial shear strength is stronger

    界面剪切強度增加后，材料的沖擊極限載荷有所增加，在裂紋起始區吸收的引發能增加較多，其中增強纖維經等離子體處理6分鐘的試樣所吸收的引發能增加了18 . 57 % ;由於裂紋擴展階段所吸收的能量相對有所下降，材料總的能量吸收能力雖有所改善，但增加不多，其中界面剪切強度增加最多的試樣，吸收的總能量增加了12 . 89 % 。
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