stress softening 中文意思是什麼
stress softening
解釋
應力軟化-
It can be noticed that both r and t specimens show initial hardening and subsequent softening at the strain amplitude higher than 0. 8 % and cyclic softening from the beginning to fracture under strain amplitude less than 0. 8 % at room temperature, and the cyclic flow stress was always lower in r specimen than in t specimen at the same strain range
且在相同的應變幅下， t向試樣比r向試樣具有更高的循環流變應力。此外，對r向及t向試樣，低應變幅下呈現出循環軟化現象是因為晶粒旋轉導致循環軟化；而在高應變幅下發生循環硬化是由於孿晶作用的結果。 -
The experimental results is shown as followings : ( 1 ) the cyclic flow stress - strain curves in an incremental step test could be expressed as the power law relation : ( 2 ) when the strain amplitude is lower during cyclic deformation tests under constant strain control, softening firstly appears, then gradually hardens with the increasing numbers of cycle ; when the strain amplitude is higher, hardening firstly appears, then gradually softens
試驗結果表明： （ 1 ）循環流變應力與應變的相互關系曲線均符合冪律關系式： （ 2 ）在室溫下進行恆應變幅循環變形過程中，當所控制的應變幅較小時，該材料首先出現循環軟化，之後隨循環周次的增加直至循環失效前該材料出現了硬化現象。當應變幅較大時，該材料開始出現硬化，然後隨循環周次的增加才出現軟化。 -
In order to establish the nonlinear elastic model of qi loess, the hump curve was used to stimulate both the softening stress - strain curve and the volume deformation curve
對軟化型應力應變曲線提出用駝峰曲線模擬，對體變曲線也提出用能反映剪脹的駝峰曲線模擬，建立了q1黃土的非線性彈性k 、 g模型。 -
The alloys, which were cold - worked followed by recrystallization annealing, display cyclic softening in the range of low strain because the cyclic stress - strain curve lies below the monotonic stress - strain curve, and show cyclic hardening in the range of high strain because the cyclic stress - strain curve lies above the monotonic stress - strain curve
在低應變范圍，冷加工后經再結晶退火處理的錯合金的循環應力一應變曲線位於單調拉伸曲線的下方，表現為循環軟化;在高應變范圍則位於單調拉伸曲線的上方，表現為循環硬化。 -
It analyses the influence of, dilatancy, rotation of soil cell ' s principal stress, pore water pressure and the damage softening. the author puts forward a critical value of 0. 01d - 0. 02d to judge the pile - soil slippage
分析了c 、的異步發揮，土的剪脹性，土單元主應力方向旋轉，孔隙水壓力以及損傷軟化對側阻發揮的影響。 -
Look back generally to elaborate the development and present situation of the stress - strain model of soil. according to a great deal of data of the test and research of zipingpu reservoir concrete faced rockfill dam ' s material, suggest the more reasonable stress - strain - volume change equation to contain strain softening, dilatancy ( shrinkage ) of the no viscous moraine and gravel. suggest the method to gain the model ' s parameter
較全面回顧闡述了土體本構模型的發展和現狀，根據紫坪鋪面板堆石壩築壩料的大量試驗研究，提出相對合理的應力應變關系方程，以反映土體的應變軟化、剪脹性，並提出模型參數的求取方法，求取模型參數。 -
The peak acceleration and the peak shear stress in superstructures increase with the increment of replacement ratio. parameters of softening model are obtained through seismic settlement tests of composite cemented clay samples and relative curves are plotted considering different replacement ratio
通過復合試樣的震陷試驗，採用軟化模型的概念，得到了該模型有限元計算的有關參數，將這些參數和置換率的關系繪製成曲線並且給出了擬合公式。 -
( 2 ) based on deterioration model of owerage bond stress of beam reinforcement accounting for effect of axial compression ration and number of displacement loops, and stress - strain relationship of the concrete in the joint core accounting for effects of both softening and confinement, the modified compression field theory was employed to simulate behavior of the joint core under loading reversals. analysis by means of the program jap on the tested specimens in this paper and those obtained from other researchers produced consistent results
根據本文建立的考慮軸壓比和位移循環次數影響的梁筋平均粘結應力退化模型和考慮軟化效應、約束效應的核心區混凝土應力應變關系，通過在試驗中得出的節點核心區混凝土、箍筋、節點正面、背面柱筋在反復荷載下的受力特點，利用斜壓場理論模擬節點核心區在反復受力過程中的受力狀態。 -
Some useful results were found after those. firstly, the softening and dilatancy characteristics of qi loess stress - strain were found by means of conventional tri - axial tests
通過研究，本文主要取得了如下一些有益的成果：首先，通過常規三軸試驗揭示了q1黃土的應力應變軟化和剪脹特性。 -
The computation results show that after reinforcing the soft and weak floor, the deformation of the surrounding rock of sides gets smaller, especially, that in the lower part of the sides decreases to a larger extent ; the size of plastic zones and the scope of strength - softening region in surrounding rock of sides become smaller ; the area that has an increase in the maximal principal stress in surrounding rock of sides shrinks, and the zones of peak - value of maximal principal stress approach the periphery of roadway
計算結果表明，加固軟弱底板後巷道兩幫圍巖變形量減小，尤其是巷道兩幫下部圍巖變形量減小幅度較大，兩幫圍巖塑性區范圍和軟化區范圍縮小，兩幫圍巖主應力升高區范圍縮小，主應力峰值區域更加靠近巷道周邊。 -
The results indicate that stress - strain curves with different water contents, consolidation stresses and stress paths are evidently dissimilar, which are correspondingly described with softening elastic - plastic model, ideal elastic - plastic model and hyperbolic elastic model
研究表明，原狀黃土含水量不同、固結圍壓不同、應力路徑不同、應力應變曲線亦顯著不同，可以由軟化彈塑性模型、理想彈塑性模型或雙曲線彈性模型描述。 -
In this paper the stress - strain and deformation characteristics of loess of the fifth tunnel of luohuiqu were analyzed by means of conventional tri - axial tests and the softening constitutive models were established. the models provide not only the basic and the necessary calculation conditions to analyze the mechanics response and construction optimization of simple shield tunnel method on the fifth tunnel of luohuiqu, but also a new method in researching the softening constitutive models of loess
本文通過對洛惠渠五洞q _ 1黃土進行常規三軸試驗，分析和探討黃土變形強度特性，建立q1黃土的軟化本構模型，這不僅為洛惠渠五洞的簡易盾構法施工的力學響應分析及其施工優化提供了最基本，最需要的計算條件，而且為當前土力學研究的熱點? ?土的軟化本構模型拓展了新的思路。 -
In accordance with the characteristics of repeated impact load, and from the aspects of stress wave transmission, repeated impact wear, hardening and softening of repeated impact and plastic deformation of repeated impact, an experimental study on partial mechanics behaviors of samples bearing laser melted clad coating under repeated impact load was carried out
摘要根據多次沖擊載荷的特性，從應力波傳播、多沖磨損、多沖硬化與軟化和多沖塑性變形方面，對帶有激光熔覆層試樣在多沖沖擊載荷下的部分力學行為進行了試驗研究。
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