2.A theoreti-cal formula is worked out for predicting theeffective modulusof these two kinds of compos-ite material.本文提出复合材料的四相球模型来描述含涂层位于复合材料及合空心球复合材料的力学行为,得到了这两类复合材料有效模量预测的理论公式。 3.Time dependent stresses of any section of composite ...
Pabst W, Gregorova E (2003) Note on the so-called Coble- Kingery formula for the effective tensile modulus of porous ceramics. J Mater Sci Lett 22(13):959-962Pabst W, Gregorová E (2003) J Mater Sci Lett 22:959 View ArticleW. Pabst and E. Gregorová: ‘Note on the so-called ...
2.A theoreti-cal formula is worked out for predicting theeffective modulusof these two kinds of compos-ite material.本文提出复合材料的四相球模型来描述含涂层位于复合材料及合空心球复合材料的力学行为,得到了这两类复合材料有效模量预测的理论公式。 3.Time dependent stresses of any section of composite ...
This section describes frequently asked questions and the answers. 2.6.1What Is the Best Effective Radius of the Interaction Zone? In the above examples, we used a relatively shorteffective radiusof 1.5l0. That was for simplifying the explanation of the models because we can reduce the number ...
The parameters of the problem are E = 2.1 × 106kg/cm2, q = 0.5kg/cm2, h = 10cm, ν = 0.3, D = Eh3/[12(1 − ν2)], 17 where E is the Young's modulus, ν the Poisson's ratio, h the plate thickness and D the flexural rigidity. The source function becomes p(x, y...
Rock is a naturally porous material that contains a large number of irregular, cross-scale pores inside. These pores directly affect the rock’s macroscopic physical, mechanical, and chemical properties, such as strength, elastic modulus, permeability, electrical conductivity, wave velocity, particle ...
Total energy calculations have also been powerful to predict mechanical properties such as the bulk modulus and its derivative through a Murnaghan–Birch equation of state39. DFT total energy is the main ingredient to define the compounds’ formation energy to study and predict their stability through...
The term β represents a geometrical feature of the cross section; however, it can be considered that the type of end connection also modifies such factor, - and if it is interchanged by B,Equation 2yields; (4)Y= A + BX= K02 ...
Some formulae to predict the effective modulus of this material have been derived theoretically. 利用Mori_Tanaka平均应力的概念和Eshelby等效夹杂的原理,研究了含涂层空心球复合泡沫塑料的弹性性质,从理论上导出了这类复合材料的有效模量预测公式· 此外,基于这些理论公式,讨论了涂层厚度和泊松比变化对复合泡沫塑料...
6.1. Airy stress function effect This section examines the effect of Airy stress functions in the proposed element, and assesses the sensitivity to mesh distortion for optimal element. To find the optimal number of Airy stress functions, the cantilever beam Fig. 4 is analyzed. Elastic modulus ...