1) elastic strain energy and plastic strain energy
弹塑性应变能
2) elastic-plastic strain
弹塑性应变
3) plastic strain energy
塑性应变能
1.
A method for estimating fatigue damages of bracing members based on plastic strain energy;
基于塑性应变能的钢支撑疲劳损伤评估方法
2.
The variety of the stress-displacement curve area is selected to be the damage variable instead of the plastic strain energy per cycle.
通过316L钢在420℃环境下应力控制的低周疲劳实验,基于连续损伤力学,提出一种新的低周疲劳损伤模型,采用 间接反映循环塑性应变能的应力-位移曲线面积的变化作为损伤变量,实验结果与该模型显示的疲劳损伤演变规律符合较好。
3.
The total plastic strain energy of a stationary crack per cycle was calculated through 2-D elastic plastic finite element analysis under constant amplitude fatigue loading,and the nonlinear relation of total plastic strain energy with stress intensity factor range was obtained.
通过二维弹塑性有限元计算得到I型静态裂纹在常幅疲劳载荷下裂纹尖端塑性应变能,进而获得裂纹尖端塑性应变能和应力强度因子幅值的非线性关系;根据能量平衡概念,建立了裂纹扩展速率与裂纹尖端塑性应变能的关系。
4) plastic energy
塑性应变能
1.
The mechanism of the multiaxial fatigue damage is analyzed and a new plastic energy-based approach for predicting multiaxial fatigue life is described.
此模型以临界平面上的塑性应变能作为疲劳损伤参量,分析了临界平面的特点并给出了损伤参量的计算过程。
5) elastic strain energy
弹性应变能
1.
The results show: when the elastic strain energy was neglected, randomly distributed equiaxed particles were obtained with isotropic characteristic; when the elastic strain was considered, precipitates tend to aligned along the elastic \!soft\" directions with anisotropic char.
计算机模拟表明:当忽略弹性应变能时,沉淀为随机分布的等轴颗粒,呈各向同性特征;当考虑弹性应变能时,沉淀相趋于沿弹性"软"方向排列,呈各向异性特征。
2.
A formula to calculate the elastic strain energy and the shear elasticity wasproposed.
在前人工作的基础上，提出计算弹性应变能和剪切弹性模量的公式，并将胎面胶料在毛细管流变仪中的测量数据与文献报道的模型进行了比较。
3.
The acoustic emissions and elastic strain energy decrease of rock specimens with initially random material imperfections in uniaxial plane strain compression were numerically modeled by using FLAC.
利用拉格朗日元法(FLAC)模拟了单轴平面应变压缩条件下缺陷数目对含初始随机材料缺陷岩石试样声发射及弹性应变能降低的影响。
6) elasto-plastic strain wave
弹塑性应变波
1.
Theory on elasto-plastic strain wave is applied,which explains successfully the test results of the concrete with or without bonded steel plate under blast load.
将介质视为流体弹塑性体系,采用一维弹塑性应变波理论分析钢板防震塌破坏机理,圆满地解释了有无钢板加固混凝土在爆炸荷载下的实验现象;并提出确定钢板厚度的计算方法,与实验结果吻合较好。
补充资料：弹—塑性变分原理
弹—塑性变分原理
elastic-plastic variational principle
tan一suxing bionfen yuanll弹一塑性变分原理(elastie一plastic variation-al Principle)适于弹一塑性材料的能量泛函的极值理论。包括最小势能原理和最小余能原理。塑性加工力学中常用最小势能原理。变形力学问题的能量解法和有限元解法都基于最小势能原理。最小势能原理有全量理论最小势能原理和增量理论最小势能原理。 全量理论最小势能原理在极值路径(应变比能取极值的路径)下运动许可的位移场u‘中，真实的位移和应变使所对应的总势能取最小，即总势能泛涵巾取最小值，其表达式为”一0，’一万〔A(一，一关一〕dV一好多!一‘“ (l)式中“:为位移;户:为外力已知面上的单位表面力;关为体力;A(气)为应变比能。 A(勒)随材料的模型而异。对应变硬化材料(图a)， E严_‘_‘_ A(乓r)一二丁二一气助+{刃(r)dr(2) 6(1一2刃~一“‘J一、-一、- 0式中E，，分别为弹性模量和泊松比;艺一硫瓜，r一掩不万，，，f，一，一音。魔。，，一，一，一音。*。!，;。f，为克罗内克(L.Kroneeker)记号，i=夕时a，一l，i笋少时民，一。，把式(2)代入式(1)便得到卡恰诺夫(几·M·Ka、aHoe)原理x的表达式。i厂:八 I’—几 I’一 ab 乞一乏(r)关系图 a一应变硬化材料;占~理想塑性材料 对于理想塑性材料(图b)， 艺~ZGr(r
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