作业帮英语翻译High-temperature low-cycle fatigue has been recognized t
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/10/06 22:28:18
英语翻译
High-temperature low-cycle fatigue has been recognized to be a life-limiting factor in numerous engineering components,especially in turbine engines.The damages from fatigue and creep and their interaction take place at elevated temperatures.Time-dependent crack growth is an importantdesign consideration for high-temperature components.The subsized cracks in these components cannot be resolved by inspection techniques available,and these cracks could grow to a critical size during service if the inspection intervals are not set correspondingly.The capability to predict the crack growth behavior of these high-temperature components is vital for both design and maintenance.The creep fatigue loading condition can be simulated to some extent in the laboratory using tests with hold times in tension.
High-temperature low-cycle fatigue has been recognized to be a life-limiting factor in numerous engineering components,especially in turbine engines.The damages from fatigue and creep and their interaction take place at elevated temperatures.Time-dependent crack growth is an importantdesign consideration for high-temperature components.The subsized cracks in these components cannot be resolved by inspection techniques available,and these cracks could grow to a critical size during service if the inspection intervals are not set correspondingly.The capability to predict the crack growth behavior of these high-temperature components is vital for both design and maintenance.The creep fatigue loading condition can be simulated to some extent in the laboratory using tests with hold times in tension.
高温低周期疲劳被公认是许多工程部件寿命的限制因素,特别是对于涡轮发动机而言更是如此.疲劳和蠕变及其相互作用造成的损害随着温度的提高而加剧.裂纹随时间而增加的特性对高温部件而言是一个重要的设计考虑因素.现有的检测技术无法这些部件上小尺寸的裂纹,如果在使用期间没有检测时间的话,这些裂纹会扩大到致命的尺寸.对这些高温部件上裂纹发展趋势的预测能力对设计和维护都是非常关键的.在某种程度上,蠕变疲劳加载条件可以在实验室里使用保持松紧交替的实验来进行模拟.
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