采用金相方法,分析晶粒尺寸和变形程度对塑性变形不均匀性的影响规律,并从晶粒的各向异性角度研究其产生的机理。
Using the metallography, the effect of grain size and strain on deformation ununiformity are investigated, and the mechanism is analyzed from the viewpoint of the anisotropy of grain.
当这种不均匀变形程度足以使土体连续性破坏时,则地裂缝便在沉降区应力集中的部位发生。
When the deformation caused by the inhomogeneous subsidence accumulates to the critical state of the soil, ground fissures will occur in the stress concentration positions.
为评价管材拉拔中的不均匀变形,提出用管材拉拔前后截面形状变化指数Q描述截面变形的不均匀性。
It is put forward in this article that the cross section deformation index Q can be used to evaluate the inhomogeneity of deformation in tube drawing.
黄土有大空隙和湿陷性,在受水侵蚀后,就会产生很大的变形,引起不均匀沉降,造成建筑物的破坏。
Loess is featured with spacing and collapsibility, which will lead to serious distortion and asymmetry settlement and make buildings be destroyed as being eroded.
锥形套圈由于它截面形状的不规则性决定了辗扩过程金属变形的不均匀性,这是导致不规则宽展、拉凹的主要原因。
The taper ring's irregular section shape decide the unequal forming of the ring metal when rolling ring, which is the main cause of irregular wide spread and draw concave on the symmetry face of ring.
从构造样式、沉积特征、断层组合等方面探讨了黄骅盆地海岸线两侧右旋走滑构造变形的存在,指出结晶基底的不均匀性是NNE向基底隐伏走滑带形成和新生代盖层走滑构造产生的控制因素。
The unevenness of crystalline basement is found to be the governing factor for forming the NNE-striking blind basement strike-slip zone and the strike-slip tectonics in the Cenozoic platform cover.
冷变形提高了钢中位错密度,也加剧了位错分布的不均匀性,后者是预应变加速组织演变的直接原因。
Cold deformation results in increasing of dislocation density and inhomogeneous dislocation distribution, the latter is the direct reason for pre-strain to promote microstructural evolution.
路基阴阳坡面热状况的差异会导致路基下伏土层温度场的不对称性,由此可能引起路基横向的不均匀变形。
This kind of difference in thermal state may result in asymmetric thermal regime in embankment, and underlying soil as well. As a result, possible unevenly transverse deformation may appear.
在相同的平面应变下,塑性弛豫引起的电荷分布不均匀性变化小于弹性变形。
The variation is smaller in plastic relaxation than the elastic one under the same in-plane strain.
结合地质信息得到了关于斜坡变形体的分布范围、规模及内部不均匀性的结果。
With geological information, the distribution of deformation bodies, their scales and internal non-uniform structures were obtained.
在相变点附近变形时容易导致合金组织和性能出现不均匀性。
When deforming near beta transition point, it may lead to the uncertainty of microstructure and properties of TC18 alloy.
拉深过程中压边力通过控制系统可以随拉深起皱规律而合理变化,有效地改善法兰区变形的不均匀性,提高盒形件的成形质量。
The BHF can be reasonably changed with the wrinkling law by control system, so the flange formability and the part quality can be imp…
拉深过程中压边力通过控制系统可以随拉深起皱规律而合理变化,有效地改善法兰区变形的不均匀性,提高盒形件的成形质量。
The BHF can be reasonably changed with the wrinkling law by control system, so the flange formability and the part quality can be imp…
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