Figure 5 . shear and bulk modulus relation for sandstone and weakly cemented sands 图5 .砂岩和弱胶结砂体中剪切模量和体变模量之间的关系。
The derived dry bulk modulus must be positive and greater than 2 / 3 of shear modulus to insure a positive lame constant and poisson ' s ratio 提取的干燥体变模量必须为正,并且大于剪切模量的2 / 3 ,以保证拉梅常数和泊松比为正。
An important issue is that the dry bulk and shear modulus of sandstone are tightly correlated in a simple relationship with distribution of porosity , mineral composition , clay content , cementation , and differential pressure 砂岩的干燥体变模量和剪切模量与孔隙度分布、矿物成分、粘土含量、胶结度和差压的关系是严格相关的,这一点非常重要。
Density function theory is suitable for the multi - electron system by considering a single - electron system . the parameters such as binding energy 、 lattice constants 、 bulk modules calculated by density function theory of semiconductor and metal materials have shown to be in good agreement with the experimental results . as such , the first principles study of the condensed matter materials based on density function theory is being paid more and more attention 运用局域密度泛函理论可将多电子系统转化为单电子系统,由此对各类半导体材料和金属材料的结合能、晶格常数、体变模量做计算得到了与实验符合很好的结果,使之成为近年来电子理论中的一项重要的成就。
体: body; part of the body变: become different; change模: mould; pattern; matrix量: measure capacity高切变模量: high shear modulus缓形变模量: modulus at slower deformation剪变模量: shear modulus切变模量: modulus in shear; shear elasticity; shear modulus蠕变模量: creeping modulus; modulus of creep衰变模量: decay modulus; modulus of decay速形变模量: modulus at rapid deformation形变模量: modulus of deformation徐变模量: modulus of creep形变模量 变形模量: modulusofdeformation当量形变模量: equivalent modulus of deformation复数切变模量: complex shear modulus塑性应变模量: module of plastic strain应力应变模量: stress-strain modulus切变模量,剪模量,剪切模量: shear modulus复数动态切变模量: complex dynamic shear modulus矿物的切变模量: mineral shear modulus岩石的切变模量: rock shear modulus模量: module; modulus变模糊: fog; thicken体变形: body deformation