蠕變應變速率 的英文怎麼說
中文拼音 [rúbiànyīngbiànsùlǜ]
蠕變應變速率
英文
creep strain rate-
It has been discovered that the deformation in the primary creep regime can well described by eqution : - 0 = atm, moreover, the eqution : = a n exp ( - q / rt ) can be used to interpret phenomenally the relationship between the steady - state creep rate and stress, temperature
蠕變的第一階段也就是減速蠕變階段的蠕變變形可用? _ 0 = at ~ m來描述。可以唯象地解釋穩態蠕變速率和蠕變應力和溫度之間的關系。The presence of small amount of liquid at grain boundaries tends to form thin viscous layer which surrounds the finer grains. intergranular fracture may occur at the grain boundaries between two fine grains not covered by viscous phases. the high ductility achieved at low strain rates is generally attributed to dislocation glide - creep accommodation mechanisms
原始晶界上產生少量液相,形成薄的固液共存粘性層並包圍細化的晶粒,沿晶斷裂主要發生在無粘性層的細晶粒間;而在較低應變速率下,三叉晶界位錯攀援?蠕變協調機制鬆弛晶界滑移產生的應力集中,晶界上產生較多液相,有利於晶界滑移進行。The following items and data analysis are measured on the second stage surgery : ( 1 ) the area of the expanded skin. ( 2 ) comparison with the rapid and the conventional expansion. ( 3 ) tension of skin in vivo
在二期手術時進行如下的實驗檢測和數據分析: ( 1 )測量擴張皮膚的面積( 2 )常規擴張和快速擴張( 3 )在體皮膚的張力( 4 )皮膚的即時回縮率( 5 )組織學檢查( 6 )皮膚的膠原含量( 7 )皮膚的生物力學特性,包括強度、應力應變關系、應力鬆弛、蠕變。From an examination of the tensile behavior of cz ly12 alloys under different temperature and strain rate, two kinds of deformation and intergranular fracture behaviors were observed that were opposite to the characteristic strain rate range in fine - grained superplasticity. the mechanisms are described as follows. the high ductility achieved at high strain rate is generally attributed to the dominant role of gbs accommodating mechanisms, which is considered as dislocation creep within grains controlled by subgrains
研究選用自然時效淬火態的ly12鋁合金,進行了一系列不同溫度和應變速率下的單軸拉伸試驗, 480下,觀察到與傳統細晶超塑性特徵區間相反的行為:較高應變速率下,動態再結晶使晶粒細化,促進了晶界滑移,亞晶界控制的晶內位錯蠕變是晶界滑移的主要協調機制。Abstract : based on the hypotheses of three - piece straightening curve. it isverified that the method for using little deformation condition was true with accurate solution of three - piece straightening curve. the mechanics behavior of slab was analyzed in regard to the creep properties of high temperature slab. the results show that the strain, the strain velocity and the stress varied so smoothly that the inner crack was prevented. technical renovation is carried on by adjusting the displacement of rolls and by using the accurate solution of three - piece straightening curve
文摘:基於三段矯直曲線應變速率的假設,通過計算三段矯直曲線的精確解,驗證了使用小變形條件的正確性;考慮高溫鑄坯蠕變性能,對鑄坯的力學行為進行了分析,得出了使用三段矯直曲線方法,鑄坯應變速率、應力及應變在矯直區內變化較為平緩,可有效避免鑄坯內裂紋的形成;使用本文三段矯直曲線精確解,調整輥列位置,可進行連鑄機的在線技術改造。Investigations showed that one of the most important characteristics of pearlitic materials is the decrease of ratcheting rate, the plastic shakedown capability, and the memory and recovery of the accumulated plastic strain under asymmetrical stress cycles. it was found that the interaction between phases plays an important role in the mechanical behavior of pearlitic materials, such as wearability and contact fatigue life
珠光體材料的重要特性之一是在非對稱應力循環下循環蠕變速率的減緩並趨于塑性安定以及材料對循環蠕變史的記憶與恢復;同時珠光體材料的宏觀力學性能與其細觀結構密切相關,在很大程度上取決于珠光體材料的微結構及其相互作用。( 5 ) basing on the exploring of the functions of cohesion force and friction force during rheology course and the assumptin that viscosity lost according viscosic strain, a constitutive model for viscous, elastic and plastic rock is set up, which can simulate the third course of creep. then the impact of transcient damage to rheology is discussed and corresponding creep model for rock is proposed
( 5 )在探導巖石顆粒間粘聚力和顆粒間摩擦力在巖石發生流變過程中的作用基礎上假設粘性失效按流變應變統計概率分佈,建立了巖石粘彈塑性本構關系,能夠描述巖石蠕變加速階段特徵;討論了瞬時損傷對巖石流變的影響和相應的損傷蠕變模型建模問題。分享友人