isotropic materials 中文意思是什麼
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In this paper, to counter a flexible beam undergoing large overall motion ima refined plate theory for transversely isotropic materials is derived by using elliott - lodge solutions and lur e operator method. the two possibilities
利用elliott - lodge解和lur e運算元方導出了橫觀各向同性板的精化理論，並考慮了本徵根 -
General expressions of constitutive equations for isotropic elastic damaged materials
各向同性彈性損傷本構方程的一般形式 -
Several models of bonded dissimilar materials with interface edges are calculated. displacement, electrical potential, singular stress fields and singular electrical displacement fields near a singular point are deduced by the eigenfuntion expansion method based on the general solution of the spatial axisymmetric problem of the transversely isotropic piezoelectric media. a generally axisymmetric interface edge of bimaterials with arbitrary interface angle and joining angle is analyzed theoretically by using this method
在此基礎上，對具有任意界面角和結合角的橫觀各向同性雙壓電材料空間軸對稱界面端一般模型的軸對稱變形問題進行了理論分析，給出了該模型界面端的奇異性特徵方程以及界面端附近的位移場、電勢、奇異應力場和奇異電位移場。 -
Measurement of microwave permittivity and permeability of homogeneous and lossy isotropic materials. method of measurement for circular coaxial guide
均勻以及有損耗的各向同性物質的微波電容率和滲透率的測定.圓形同軸導向裝置的測量方法 -
In the first part of this thesis, history of ptr technology and measuring equipment were introduced. we have summarized the continuously modulating ptr theory of isotropic materials, and formed a complete system info concluding one dimension and three dimensions theories, monolayer and multilayer theories
本文前半部分簡單敘述了ptr技術的研究歷史和測量裝置，較為系統地總結了各向同性材料的連續調制ptr理論，形成了從一維到三維、從單層至侈層的完整理論體系。 -
Secondly, the paper analyzed the behavior of isotropic and orthogonal anisotropic materials " cws on the basis of above theory and software. regularities of cws " deformation inner force and shared load and earth pressure in excavating stage and driving stage were gained. regularities influenced by material features top beam excavating depth sidewall depth properties of soil layers rear backing and location of load were also obtained, especially rules of display degree exerted by circular and vertical loads were also obtained
通過分析，得到了形成階段及頂進階段圓形工作井的變位、結構內力、分載及土壓的分佈規律及材料性質、頂冠梁及圍檁、開挖深度、井壁插深、土層性質、后靠背、頂載作用位置等因素對結構受力性狀的影響規律，特別是得到了工作井在受力時結構環向與豎向承載作用發揮程度的規律。 -
2. eigenequation about singularity, singular stress fields and electrical displacement fields near the axisymmetric interface edge of two bonded dissimilar transversely isotropic materials are obtained under axisymmetric distortion. 3
然後，考慮電學物理量的影響，將上述特殊有限元法應用於壓電/壓電以及壓電/彈性接合材料界面端奇異性的求解。 -
Deducing the new formaulas of two isotropic materials composite yong ' s modulus from bending model
用彎曲模型推導二組元復合材料楊氏模量新公式 -
Studying on the shakedown theories and plastic deformation of contact surface layer the shakedown of contact surface layer is related to the strain - hardening models of materials, such as isotropic hardening, kinematic - hardening, and mixed - hardening. the existing results based on experiments and theory show that the shearing strain behavior of contact surface layer caused by friction can be comparatively described with kinematic - hardening
研究中，圍繞強化後接觸表面疲勞問題，從強化模型選擇、接觸表層安定性存在的條件及其失效規律，進行了詳細的概念定義、定理證明及推論演算等理論工作，為接觸表面層安定性的數值模擬和疲勞分析奠定了理論基礎。 -
Experimental and finite element analysis of three point bending ( tpb ) test were conducted. it is found material ' s anisotropy of anisotropic materials and poission ' s ratio of isotropic materials all had influence on contact deformation between specimen and fixture. so it is wise to get flexural properties using four point bending test
4 .通過試驗和有限元分析發現，造成對三點彎曲試驗測得的三維編織復合材料的彎曲模量遠低於四點彎曲試驗結果的原因:材料的各向異性和泊松比對於三點彎曲試驗的壓頭和支座處的局部接觸變形影響很大 -
Abstract : the anti - plane problem in transversely isotropic magnetoelectroelastic materials containing an elliptic inclusion is considered by using the complex variable approaches. the analytical expressions for the field variables in both the matrix and the inclusion are obtained when the stresses and the electromagnetic fields at infinity are uniform. the results show that the stress, the electric displacement and the magnetic induction inside the inclusion are constants
文摘:用復變量方法研究了橫觀各向同性電磁彈性固體的反平面夾雜問題，得到了遠場均勻應力和電磁場作用下夾雜內外彈性場和電磁場的解析表達式，結果表明夾雜內的應力、電位移和磁感應強度為常量。 -
Applications of the state vector method into the analysis of lamina, the current research state of piezoelectric materials and smart materials for civil engineering applications are briefly reviewed based upon literature search. solutions for axisymmetric and non - axisymmetric layered space magneto - electro - elastic media via the state vector method are investigated. axisymmetric problem : the state vector equation of transversely isotropic axisymmetric space magneto - electro - elastic media is established in a cylindrical coordinate system
本文在文獻調研的基礎上，簡介了狀態變量法在層合結構分析巾的應用、壓電材料的研究現狀和智能材料與結構在土木工程中的應用；探討了運用狀態變量法求解層狀壓電壓磁彈性材料的空間軸對稱問題和非軸對稱問題。
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