Creep Damage Evaluation using Uniaxial Miniature Specimens for Multiaxially Damaged Components

Creep Damage Evaluation using Uniaxial Miniature Specimens for Multiaxially Damaged Components
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使用单轴微型样本评估多轴损坏部件的蠕变损坏

DOI:
10.1051/matecconf/201930007003
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发表时间:
2019
影响因子:
--
通讯作者:
Masao Sakane
Masao Sakane
中科院分区:
--
文献类型:
--
作者:
Rui Kosaka;Fumio Ogawa;Takamoto Itoh;Masao Sakane

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相似文献

本文探讨了一种利用微型蠕变试验评估高温构件多轴蠕变损伤的方法。基于线性蠕变损伤累积和von Mises等效应力作为多轴蠕变损伤的度量,提出了一种新的损伤评估模型。该模型清楚地表明,传统的蠕变损伤评估方法,利用单向微型蠕变试验给出了一个不保守的估计,在某些情况下,多轴蠕变损坏的组件。为了验证所提出的模型的适当性,多轴蠕变试验进行了使用十字形试样的Mod.9Cr-1 Mo钢。在两个方向上的微型试样加工从预损伤的十字形试样和单轴蠕变断裂寿命的微型试样证明了所提出的模型的有效性。
This study discusses a method of evaluating multiaxial creep damage for high temperature components subjected to multiaxial creep damage utilizing a miniature creep testing. A new model of the damage evaluation is proposed based on a linear creep damage accumulation and von Mises equivalent stress being a measure of multiaxial creep damage. The model clearly indicates that conventional creep damage evaluation methods utilizing a unidirectional miniature creep testing give an unconservative estimate in some cases for multiaxially creep damaged components. To verify the appropriateness of the proposed model, multiaxial creep tests were performed using cruciform specimens of a Mod.9Cr-1Mo steel. Miniature specimens in two directions were machined from a pre-damaged cruciform specimen and the uniaxial creep rupture lifetimes of the miniature specimens demonstrate the validity of the proposed model.
DOI: --
发表时间: 1973
期刊: --
影响因子: --
作者:
火力発電技術協会;火力原子力発電技術協会
通讯作者: 火力原子力発電技術協会
DOI: 10.2472/jsms.45.559
发表时间: 1996
期刊: Journal of The Society of Materials Science, Japan
影响因子: --
作者:
S. Mukai;T. Takada;M. Sakane;M. Ohnami;T. Tsurui
通讯作者: T. Tsurui
通过应力与断裂时间图的区域划分方法改进高铬铁素体抗蠕变钢的蠕变寿命预测。
DOI: 10.2472/jsms.52.57
发表时间: 2003
期刊: Journal of The Society of Materials Science, Japan
影响因子: --
作者:
K. Kimura;H. Kushima;F. Abe
通讯作者: F. Abe