creep damage
蠕变损伤
2025-09-06 21:33 浏览次数 9
蠕变损伤
creep cumulative damage蠕变累积损伤
creep damage model蠕变损伤模型
creep damage life蠕变寿命
coupling effects of creep-damage蠕变
creep isotropic damage蠕变各向同性损伤
constitutive creep-damage流变损伤
microscopic creep and damage微观蠕变损伤
creep meso damage蠕变细观损伤
the probabilistic life prediction of high temperature components was studied by using the stochastic equation of creep damage and simple second-order theory and method of high temperature components.
通过应用高温构件蠕变损伤的随机方程及一次二阶矩理论和方法,对高温构件的概率寿命预测进行了研究。
the non homogeneity of creep damage is investigated for gh169 alloy.
研究了gh169高温合金蠕度损伤的非均匀性。
a unit cell model was applied to study the creep damage behavior after fiber fractures in the fiber reinforced composites at high temperature.
首先利用复合材料纤维断裂单胞模型,编制蠕变损伤子程序,对单胞模型进行蠕变损伤分析。
a new probabilistic creep damage model was proposed in this paper based on the deterministic model. and the sensitivity of the parameters was analyzed in detail.
本文根据确定性模型的研究工作,提出了新的蠕变损伤概率计算模型,并对影响高温构件蠕变损伤各参数进行了参数敏感性分析。
introduced the conception of creep damage and its characteristic parameter, a other resemble creep life prediction formula was abtained also.
另外,通过引入蠕变损伤特征参量的概念还导出类似的另一个蠕变寿命估算公式。
the analysis results have shown that creep damage and crack initiation behaviour depend strongly on the void location and crystallographic orientation.
计算结果表明:晶体取向和孔洞位置对试样蠕变损伤和裂纹萌生行为有着显着的影响。
based on creep damage mechanism of the soften rockmass, it is proposed that the creep damage of rockmass is composed of deformation damage and time damage.
基于软弱围巖的蠕变损伤机理,提出了围巖蠕变损伤具有变形损伤与时间损伤耦合效应的观点。
because of the randomness of material properties and operation conditions the creep damage of high temperature component is also stochastic.
由于材料性质以及操作条件的随机性,高温构件的蠕变损伤也同样具有随机性。
the establishment of the relationship would provide us a new judging rule used in researching creep damage of austenite steel from the …
这一关系的确立,为从微观角度研究奥氏体钢的蠕变损伤提供了一种判断依据。
based on the principal of probabilistic calculation and deterministic solution of creep damage of high temperature components, the probabilistic model of creep damage was obtained.
文中根据概率计算的基本原理和高温构件蠕变损伤确定性解,得到蠕变损伤的概率方程。
the creep indentation testing with cylindrical flat indenters has been simulated by the finite element method with special attention on the creep damage of the indented materials.
对平头压痕蠕变实验进行了有限元模拟分析,重点考虑了受压材料的蠕变损伤。
subsequently nonlinear creep damage model under limit state analysis is expatiated due to increasingly paying attention to nonlinear creep effect in civil engineering field.
另外由于非线性徐变效应日益引起工程界的重视,重点论述了用于结构极限状态分析的非线性徐变破坏(损伤)模型。
considering the randomness and correlation of every parameter in detail the probabilistic calculation solution of creep damage was proposed.
在全面考虑各参数的随机性和相关性基础上,最终获得高温构件的概率蠕变损伤解。
creep damage is mainly caused by superheat. because of superheat, creep cavities are formed inside microstructure, under heat stress condition, growth and join of cavities induce creep cracking.
高温蠕变损伤是由于过热引起的,过热使金相组织内部产生蠕变空洞,在热应力下空洞扩展连接而形成蠕变裂纹。
creep damage is mainly caused by becauseat. becaus e of superheat, creep cavities are formed inside microstructure, under heat stress condition, growth and join of cavities induce creep cracking.
高温蠕变损伤是由于过热引起的,过热使金相组织内部产生蠕变空洞,在热应力下空洞扩展连接而形成蠕变裂纹。
based on the relation of creep modulus and creep time for rock salt, the creep damage evolution and creep damage constitutive equation are established.
并从盐巖蠕变模量随蠕变时间的变化规律入手,导出了以蠕变时间为自变量的损伤率演化方程和用损伤表示的蠕变模量演化方程。
from the point of whole creep process, long-term strength and energy dissipation, this paper analyzes the creep damage characteristics of wreak surrounding rock.
从巖体的蠕变全过程、长期强度和能量耗散的角度,分析软弱围巖的蠕变损伤特性。
the monotonicity analysis is used to investigate the unified creep damage constitutive equations and some characteristics have been obtained.
利用单调性分析方法对蠕变损伤统一本构方程进行了分析,得到了本构方程的单调特性。
rheological phenomenon is a common dynamic action with its creep damage being one of the major damage types of rock salt.
流变是巖盐类软巖的一种常见力学行为,其蠕变损伤破坏是巖盐的主要破坏形式之一。
the nonlinear creep damage mechanism of rock salt is investigated with triaxial creep tests, theoretical analysis and numerical simulation in the study.
本文通过盐巖三轴蠕变实验、理论分析和数值计算研究了盐巖的非线性蠕变损伤机理。
the probabilistic creep damage model would provide the effective means to assess the reliability of the high temperature components.
蠕变损伤的概率计算将为高温构件可靠性评估奠定基础。
the influences of various stress function criteria, operation and stop on the creep damage and service life of the furnace fire bars were studied.
研究了不同应力函数準则、开停车对炉管蠕变损伤及寿命的影响。
in this paper, the stress condition in the surrounding rock of underground tunnel is analysed with the creep damage modelling of damage mechanics.
本文运用损伤力学中考虑蠕变损伤的力学模型对地下巷道围巖的受力状态进行了分析。
creep damage was marked in some bend which local stress is higher.
有的弯管由于局部应力较高,蠕变损伤明显。
creep test data of granite at different temperatures are used to carry out the identification of the creep damage model; and the creep parameters are obtained.
通过不同温度下花岗巖的蠕变试验数据对建立的蠕变损伤模型参数进行识别,得到不同温度下蠕变损伤模型的材料参数。
because of the difficulty to get randomness of the creep data, the former research mainly concentrated on the deterministic creep damage problem.
由于蠕变问题的随机性研究较困难,过去的研究主要集中在确定性蠕变损伤问题上。
a residual life predication method of cracking tube is proposed taking account of the creep damage and the thinning damage of the tube.
提出了考虑裂解管蠕变损伤和减薄损伤的剩余寿命预测方法。
it is a possible, like that of the non-damage creep indentation experiments, to obtain the creep damage law of the indented materials from the creep damage indentation testing.
与无损伤材料一样,也可以通过压痕蠕变损伤实验来得到受压材料的蠕变损伤规律。