aThe sample were constrained to near zero axial deformation (plane strain). Failure around the hole was caused by loading to a state of high external pressure (75 MPa). Uniaxial compressive strengths reported in the literature rang from 44–74 MPa for Berea sandstone. For Berea sandstone, Youn...
美 英 na.【数】轴对称 网络轴对称性;轴向对称;轴向封称 英汉 网络释义 na. 1. 【数】轴对称 释义: 全部,轴对称,轴对称性,轴向对称,轴向封称
First, beams where the loading and deformation occur in the xz-plane are studied. Such bending of beams is known as symmetrical or plane bending. An isotropic material with temperature-independent properties is considered. As in all problems involving beams, the central matter is determining the ...
The method comprises the following steps of fixing an internally arranged LVDT (Linear Variable Differential Transformer) sensor and the rock sample; calculating the deformation value of the rock sample and the axial strain after system deformation is eliminated; and calculating the axial strain after ...
deformation at various flaws throughout the sample. Microscopically, the deformation remains highly heterogeneous in view of the microstructure of the material. Depending on the material and the temperature, the inelastic deformation may stem from microcracking, plastic glide, or a combination of the ...
These problems are resolved in I5S (ref.20), wherein two opposed objectives introduce six coherent illumination wave vectors, yielding more frequency components than in 3D SIM. The same objectives are used to collect fluorescence, which is also coherently interfered. The combination of coherent illum...
the influence of uneven deformation at the corners on the tensile accuracy was analyzed by using the finite element software ABAQUS. The results of finite element analysis show that the error of the equiaxed tensile method with fixed corner points is small in the large tensile range "(≤4), ...
EIA-364-07B-1998 - TP-07B Contact Axial Concentricity Test Procedure for Electrical Connectors EIA STANDARD TP-07B Contact Axial Concentricity Test Procedure for Electrical Connectors EIA-364-07B (Revision of EIA-364-07A)MAY 1998 ELECTRONIC INDUSTRIES ALLIANCE ENGINEERING DEPARTMENT ...
Owing to the same deformation mechanism and a big radius of the wedge tool when compared to the billet dimensions, the tools are designed in the same way for all CWR methods. Generally, the CWR tool geometry design process boils down to determining values of spreading angle β and of forming...
11). If one examines the hysteresis behavior of all three reflections, differential lattice strains are different at a given total strain, because of the build up of residual stress in the sample after plastic deformation (Uchida et al., 2004). For better understanding, Figure 12 shows ...