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Author:

杜培 (杜培.) | 王晶 (王晶.)

Abstract:

本文创建了4130X材料的真应力应变本构的三点弯试样有限元模型,通过提取不同裂纹长度下弹性区内的裂纹张开位移,拟合得到裂纹尖端的张开位移,绘制裂纹扩展阻力δ-Δa曲线,计算得到非敏感断裂抗力δ0.2BL值。模拟结果与实测得到的阻力曲线、非敏感断裂抗力对比可知,二者差异均在10%以内,有限元模拟得到的材料抗断裂性能可应用于实际工程。

Keyword:

断裂韧性 非敏感断裂抗力 裂纹尖端张开位移

Author Community:

  • [ 1 ] 北京工业大学

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Source :

Year: 2022

Language: Chinese

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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