純形狀應變 的英文怎麼說
中文拼音 [chúnxíngzhuàngyīngbiàn]
純形狀應變
英文
pure non dilatational strain-
Most of the theoretical researching of correcting building technique skimpily focalized point on deformation of soil released stress. the change of loading and deformation of foundation and structure were seldom considered
糾偏技術的理論研究，大多單純著眼于土體在應力釋放后自身的變形狀況，很少考慮到結構和基礎的變形及上部荷載的變化與土體變形的相互影響。The study in the paper starts with beam distortions, and it treats the plastic deformation area as pure bending sect, rest of the beam as rigid bodies. according to different shapes of the external tendons, it divides into three structural forms familiar in projects, that is the beams with no deviator, with a deviator and with two deviators, and studies the relation between the deformation of the external prestressing tendons and that of the beams, and derives the formulas of the ultimate stress increment of external tendons. in the formulas, the ultimate angle corresponding to half of the plastic deformation area is considered as a variable parameter
本文首先從梁極限狀態下的變形入手，將塑性鉸區看作純彎段，將塑性鉸以外的區域看作剛體，按照體外預應力筋的形狀不同，分工程中最常見的三種體外結構形式，即無轉向塊的直線型體外筋混凝土梁、具有一個轉向塊的單折線型梁和具有兩個轉向塊的雙折線型梁，研究體外預應力筋變形和梁體的變形間的關系，推導出以極限狀態下塑性鉸區之半對應的轉角為參數的計算體外預應力混凝土簡支梁以及連續梁的體外筋應力增量計算公式，並進一步求得梁的極限承載力。Worthy products where a delicate filtering process and a careful handling of the crystals are required. products with fine grain size where the presence of the heel cake residual layer remaining on the cloth after scraping on
因密閉操作和無機械卸料機構刮削擠壓濾餅的獨特卸料方式，使該機在需要保護固相結晶顆粒的形狀和純度以及固相物料具有觸變性的固液分離場合具有極強的應用價值。The mentioned raw materials used in the production of refractories should be of high purity to limit the amount of low melting phases formed in the sintering process, which can cause spalling in the bricks due to phase changes
上述提到的用於耐火磚生產的原料應是高純度的，以限制低溶解物資狀態在燒結過程中成形的數量，因為狀態改變會導致磚的散裂。Pure non dilatational strain
純形狀應變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
在復雜變值荷載作用下，結構有可能出現兩種狀態：一種是在若干次載荷循環之後，塑性變形趨于穩定，在此後繼的載荷循環中結構表現為純彈性響應，這種狀態稱為安定狀態（ shakedown ） ；另一種則是塑性流動一直持續地發展或不斷反復，直至結構破壞，結構的破壞有兩種型式：一種是由塑性應變的累積引起的增量塑性破壞；一種是塑性變形多次反復引起的疲勞破壞，也稱為交變塑性破壞。In order to prolong the natural life of fracturing pump valve, this article do much basic research work on fracturing pump value. firstly, kinetic characteristics of fracturing pump valve are stated particularly and analysed. through stimulated experiment based on practical working conditions, the wearing disciplinarian and forms of impact particle wear about fracturing pump valve are researched by comparing it with pure impact wear and abrasive wear. furthermore, the wear mechanism of impact particle wear and particle erosion are analysed. in the end, by using the fenite element analyzing tool ansys, the distributing law of stress and strain of fracturing pump valve at the state of closing and during the process of impact are analysed carefully
詳細闡述和分析了它的運動特性；根據其實際工況，通過模擬試驗，研究了壓裂泵閥沖擊磨料磨損的磨損規律和磨損形式，並且將其與純沖擊磨損、滑動磨料磨損進行了對比；分析了壓裂泵閥的沖擊磨料磨損、沖蝕磨損等磨損機理；藉助ansys有限元分析工具，對泵閥關閉狀態下和沖擊過程中的應力應變分佈規律進行了詳細分析。分享友人