| 1. | Analysis of stress - strain in the plastic state 塑性状态下三维应力应变状态分析 |
| 2. | The way of cutting hard brittle material in a plastic state is classified 对塑性状态下切削硬脆材料的方法进行了归纳和分类。 |
| 3. | Abstract : this paper introduces a new processing think of cutting hard brittle material in a plastic state 文摘:提出了在塑性状态下切削非金属硬脆材料的加工思路。 |
| 4. | A further study of the way and theory of cutting hard brittle material in plastic state is presented 阐述了进一步研究在塑性状态下切削硬脆材料的理论、方法,并提出了今后的设想。 |
| 5. | At plastic state , rate of water loss in concrete is quickened ; measures should be taken to prevent it in practical construction 混凝土在塑性状态下失水较快,应注意加强防止措施。 |
| 6. | The expansion and strength of middle strength superplasticized expansive concrete develop more coordinately . fa reduces the early strength of middle strength superplasticized expansive concrete , and this make more expansion become invalid when the concrete is in plastic state 中强流态膨胀混凝土的膨胀与强度性能发展比较协调,粉煤灰的加入降低了早期强度,使更多的膨胀变为无效膨胀消耗在仍处于塑性状态的混凝土中,混凝土限制膨胀率减小。 |
| 7. | Under varied loads such as cyclic and / or transient loading , soil structures or foundation will induce permanent and / or fluctuating plastic deformations . such plastic deformations are cumulative and / or alternating in nature with increase of time of loading during a sequence of cyclic loading . if the resulting accumulated deformations is limited within a given bound or the alternating deformations will be adapted to a given plastic state after a certain cycle numbers or a certain period of loading , the soils will be in shakedown state 在复杂变值荷载作用下,结构有可能出现两种状态:一种是在若干次载荷循环之后,塑性变形趋于稳定,在此后继的载荷循环中结构表现为纯弹性响应,这种状态称为安定状态( shakedown ) ;另一种则是塑性流动一直持续地发展或不断反复,直至结构破坏,结构的破坏有两种型式:一种是由塑性应变的累积引起的增量塑性破坏;一种是塑性变形多次反复引起的疲劳破坏,也称为交变塑性破坏。 |
| 8. | Then at the elastic - plastic state taking advantage of the brace and eccentric distant , we can control the inelastic deformation of the braced frame . the reinforced concrete frames with eccentric brace conform with the earthquake - resistant principle and its seismic properties have improved remarkably . during the lowly circular and repeated loading , the load - bearing , deformation , and ductility of the eccentrically braced reinforced concerete frames were measured 偏心支撑钢筋砼框架的设计意图是当结构在抵抗外力作用时,在弹性阶段结构有较高的抗侧刚度,而当结构进入弹塑性阶段时,利用支撑和耗能段梁的变形使结构的非弹性变形可控,体现了抗震结构“先刚后柔”的原则,使钢筋砼框架的抗震性能得到有效地改善。 |