Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
770724 | Engineering Fracture Mechanics | 2011 | 6 Pages |
Abstract
We propose a model which computes the fracture distance of materials (reactor pressure vessel steel, C–Mn steel, and four heat-treated HSLA steels) as a function of temperature. The fracture distance, an important length scale for predicting cleavage fracture, is determined using the parameters such as mean grain size, fracture toughness and yield stress of the material in the range of −250 to 0 °C. The fracture distances computed from the proposed model agreed with measurements for the materials. Some differences between the predictions and the measurements were observed for HSLA steel with fine grain size (30 μm) and coarse grain size (55 μm).
Related Topics
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Mechanical Engineering
Authors
Yun-Chan Jang, Youngseog Lee,