viscoelastic strain 中文意思是什麼

viscoelastic strain 解釋
粘彈性變形
  • viscoelastic : adj. 黏彈性的。
  • strain : vt 1 用力拉，拉緊，抽緊，扯緊。2 使緊張；盡量使用（肌肉等）。3 強迫，強制；濫用，盡量利用。4 拉傷...
  1. The main purpose of this paper is to study crack growth rate of a class of nonlinear viscoelastic materials under the condition of constant load and small - strain. in this paper : the new test program is raised by referencing the existing test programs and by our trial and error ; in the new test program, facilities involved in the nonlinear viscoelastic crack tests are relatively few, the test process is relatively simple and the data obtained from the experiments are credible. on this basic, the calculation of j integral of nonlinear viscoelastic double cantilever beams specimens and the parameter of fracture work of corresponding nonlinear viscoelasticity are derived

    具體成果包括： 1 、證實了雙懸臂梁試件用於非線性粘彈性裂紋擴展實驗研究的優點：雙懸臂梁試件在實驗中能觀測到的擴展過程持續時間比較長，在計算j積分時，計算方法簡單； 2 、得到了改性聚丙烯材料用於非線性粘彈性裂紋擴展實驗的兩種有效的試件構形和相應的試件尺寸；採用不斷改善夾具的方法使得加載穩定； 3 、經過連續四個多月的時間得到了一組有用的實驗數據； 4 、得到了裂紋長度與時間的關系、裂紋擴展速度與時間的關系、裂紋擴展速度與裂紋長度的關系。
  2. A developed measuring system and test method of green sand properties are introduced. by means of measuring the standard molding sand specimens, the dynamic curves of stress - strain can be quickly and accurately plotted out and several parameters, which represent the characteristics of molding sand, can be tested during the process of compressive deformation. in this brand new method of property measurement two new concepts of viscoelastic parameter and plastic deformation threshold are put forward

    介紹了一種研製的型砂性能檢測系統與測試方法，通過對標準砂樣的測試，能迅速、準確地測得砂樣受載過程中的應力應變的動態關系曲線及反映型砂本質特徵的幾項性能參數，這是型砂性能檢測領域中的新探索，其中型砂粘彈性指標及塑性變形臨界值乃是型砂性能方面的新概念。
  3. The pavement system is modeled as a plate extent on a viscoelastic foundation, and the triple fourier transform is used to analyze the dynamic strain response of rigid pavement subjected to moving vehicle loads

    摘要把剛性路面建模為黏彈性地基上的板，用三次富立葉變換的分析方法分析了移動車載下剛性路面板底動態應變的響應。
  4. Finally, to consider the effect of the compression of the approach embankment to the determination of the tolerable differential settlement, this paper, considering the flexible pavement as viscoelastic multilayers and dividing the moving traffic load into fourier series, presents the formulation and the application of a combination of transfer matrix and laplace transform and fourier transform approach to evaluate dynamic response of the flexible pavement subjected to a moving traffic load under modified plain - strain condition. the predictive capability of the model are verified by the laboratory model

    為了考慮車路耦合對路橋過渡段容許差異沉降確定的影響，本文將柔性路面視作粘彈性體層狀體系，採用修正的平面應變模型，將移動的車輛荷載用傅立葉級數展開，用傳遞矩陣配拉氏變換和傅立葉變換法進行了移動荷載作用下柔性路面動力響應分析，並用模型試驗證明了理論分析結果的正確性。
  5. By using moire method, three groups of pmma specimens with single edge crack were experimentally researched under constant stress, especially the strain field around crack - tip. through measure and analysis, we could see its time dependence clearly. we compared the actual strain distribution with the theoretical linear viscoelastic strain distribution

    利用雲紋法，對四組含邊裂紋的pmma試件在恆應力條件下的裂尖周圍的應變場進行了測定、分析，可以看出其明顯的時間相關性，並與基於線彈性假設的裂尖應變場進行了對比。
  6. The aim of this paper is to search for practical nonlinear viscoelastic relations and the solution approach for viscoelastic problems in the range of infinitesimal strain

    本文的研究目的在於尋找小變形范圍內工程實用的非線性粘彈性本構關系及非線性粘彈性問題的求解方法。
  7. Abstract : based on the integral creep constitutive relations of viscoelastic material with damages, a new increment finite element method to solve stress, strain and damage variables is developed by using equivalent stresses, three - dimension damage field can be analyzed and coupling stress and damage field can be solved by using iteration method

    文摘:基於損傷的粘彈性材料積分蠕變型本構關系，建立了求解應力應變和損傷變量的一種新型增量型有限元法，引用當量應力，可以分析三維損傷場，採用迭代法求解相互耦合的應力和損傷場。
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