METHOD OF EVALUATING DELAYED FRACTURE PROPERTIES
To improve evaluation accuracy of delayed fracture properties.SOLUTION: A delayed fracture property evaluation method is provided, comprising conducting a corrosion test on a test piece loaded with a stress, computing fracture mechanics parameters based on sizes of corrosion holes appearing on the t...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To improve evaluation accuracy of delayed fracture properties.SOLUTION: A delayed fracture property evaluation method is provided, comprising conducting a corrosion test on a test piece loaded with a stress, computing fracture mechanics parameters based on sizes of corrosion holes appearing on the test piece during the corrosion test, and evaluating delayed fracture properties based on a result of comparison between the fracture mechanics parameters and thresholds.SELECTED DRAWING: Figure 1
【課題】遅れ破壊特性の評価精度の向上を実現することを課題とする。【解決手段】遅れ破壊特性の評価方法は、応力が負荷された試験片に腐食試験を実施する工程と、腐食試験で試験片に生じる腐食孔のサイズに基づいて破壊力学パラメータを算出する工程と、破壊力学パラメータおよび閾値の比較結果に基づいて遅れ破壊特性を評価する工程と、を含む。【選択図】図１ |
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