unidirectional stress 中文意思是什麼

unidirectional stress 解釋
單向應力
  • unidirectional : adj. 單向的。
  • stress : n 1 壓力，壓迫，緊迫，緊張。2 【語音】重音；重讀；【詩】揚音；語勢，著重點。3 重要（性），重點，...
  1. Furthermore, the fiber volume fraction of each inclined and horizontal unidirectional " lamina was assumed to be the same as that of the composites. three - dimensional stress - strain analysis was applied to each unidirectional lamina that was assumed to be transversely isotropical under on - axis coordinate system. carrying out the integration and averaging of stiffness yielded the effective elastic moduli of 3 - d braided structural composites

    採用三維應力?應變分析，在單胞的長度方向積分和平均，在給定的應變邊界條件下，採用剛度體積平均的方法，預測三維編織結構復合材料的有效彈性模量；在空間多向應力的基礎上，通過對三維編織結構復合材料破壞機理的探討，摘要提出了適用於三維編織復合材料細觀強度失效準則，預測三維編織結構復合材料的強度性能。
  2. Tensile stress concentrations and strengths for notched unidirectional laminates

    割口單向疊層板的拉伸應力集中與強度
  3. An experimental program which includes lots of unidirectional laminae is conducted using t300 / bmp - 316 material for researching the static and fatigue behaviour of the unidirectional ply. the experimental research for mechanical behaviour of a unidirectional lamina is to set up expressions of the normalized fatigue life, the residual strength degradation and the residual stiffness degradation of a unidirectional ply in the longitudinal, transverse and in - plane - shear directions, which also verifies the fact of nonlinear shear stress - strain behavior of a unidirectional ply in the 1 - 2 planes

    其中:分別對材料t300 / bmp - 316單向層合板縱向、橫向及面內剪切靜載力學性能及疲勞特性進行了試驗研究，並採用最小二乘法擬合得到各主方向正則化疲勞壽命表達式，以及單層板各主方向疲勞加載剩餘剛度退化表達式及剩餘強度退化表達式;試驗同時驗證了單向層合板1 - 2面上明顯的剪切應力應變非線性關系。
  4. Based on the concept of a modified fatigue modulus, a cumulative strain damage model, which is able to consider the influence of in - plane multi - axial stresses and mean stress to the fatigue behavior of unidirectional laminates, is proposed

    論文各章的主要工作有： （ 1 ）以疲勞模量概念為基礎，建立累積應變損傷模型。
  5. With the typical on - axis fatigue tests to get the relative s - n curves of unidirectional laminates, executed at certain stress ratio, it is possible to predict the fatigue life of multidirectional laminates subjected to cyclic stresses of different stress ratios. this would tremendously reduce test costs for laminate structures

    考慮了層壓板中單向層面內多軸應力和平均應力的影響，在已知單向板在確定應力比下受典型單軸循環應力的s - n曲線的基礎上，預測任意鋪疊次序層壓結構在不同應力比的循環載荷下的疲勞壽命。
  6. In this paper, the residual strength of damaged composite laminates and their repaired structures under unidirectional tensile stress is calculated. the influence of the repair parameters, such as the diameter of the circle patch, the length and the width of the rectangle patch, the thickness of the patch, the stacking sequence is discussed

    本文對含損傷復合材料層壓板及其修補結構在單向拉伸載荷作用下的剩餘強度進行了計算，同時對補片參數對修補效果的影響做了一些研究和探討，主要做了以下幾個方面的工作： 1
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