1) plastic strain energy density
塑性应变能密度
1.
The effects of titanium alloying method and titanium content on the plastic strain energy density and low-cycle fatigue behavior of A356 alloys were investigated.
结果表明:4种合金均表现为明显的循环硬化行为;具有较高钛含量的E14、M14合金的循环硬化能力高于低钛含量的E10和M10合金;合金的塑性应变能密度受应变幅的影响且具有循环相关性;高应变幅时,塑性应变能较高但随循环周次变化较小;当应变幅较低时,合金的塑性应变能较小但变化较大,特别是塑性较好的E10和M10合金;无论是电解加钛还是熔配加钛,钛含量为0。
2) Equivalent plastic strain energy density
当量塑性应变能密度
3) elastic strain energy density
弹性应变能密度
1.
Finite element analysis is applied to calculate the elastic strain energy density distribution in the gamma matrix and gamma precipitate along the orientation before and after loading,and the analysis of directional coarsening process is performed based on the element diffusion behavior.
采用有限元计算了[001]取向时,镍基单晶合金中γ基体和γ′沉淀相在施加外力前后弹性应变能密度的分布,并依据元素的扩散性质对定向粗化过程做了相应分析。
4) 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。
5) 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。
6) strain energy density
应变能密度
1.
Based on the strain energy density theory, the equivalent strain energy density at half life is used as a control parameter, and a new life prediction model for stress controlled fatigue or fatigue-creep interaction is proposed in this paper.
基于应变能密度理论,并以半寿命等效应变能密度作为控制参量,提出一种新的应力控制寿命预测方法。
2.
A 2-D finite element model of tire-rubber was established to simulate the crack growth of the sample under simple tension,by using the strain energy density parameter.
建立了二维轮胎橡胶材料的有限元模型,用应变能密度这个参数模拟了试样承受单向拉伸时裂纹的扩展方向。
3.
Based on the theory of continuum mechanics and maximum tensile stress criterion and conservation law of energy, this paper has proposed that fracture strain energy density of brittle materials is linear with their fracture strain, and that average stress decided by them is a material constant, which have been verified by PMMA materials tensile test at the different loading rates.
本文基于连续介质力学理论和最大拉应力准则 ,从能量的观点出发 ,根据能量守恒定律 ,提出了脆性材料的断裂应变能密度与断裂应变成线性关系 ,由此确定的平均应力为材料常数。
补充资料：应变能释放速率
分子式：
CAS号：
性质：在线性弹性断裂力学中，把裂纹增加单位长度所需的能量。以符号G表示。对于张开型裂纹，通常用G1表示，当G1达某一临界值G1C时，材料断裂。
CAS号：
性质：在线性弹性断裂力学中，把裂纹增加单位长度所需的能量。以符号G表示。对于张开型裂纹，通常用G1表示，当G1达某一临界值G1C时，材料断裂。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条