Experimental observations of “reversible” transformation toughening

Experimental observations of “reversible” transformation toughening
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“可逆”相变增韧的实验观察

DOI:
10.1016/j.scriptamat.2020.09.018
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发表时间:
2021
期刊:
影响因子:
6
通讯作者:
Baxevanis, T.
Baxevanis, T.
中科院分区:
材料科学1区
文献类型:
--
作者:
Makkar, J.;Young, B.;Karaman, I.;Baxevanis, T.

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具有经历不可逆变形的倾向的材料显示出对渐进裂纹前进的增加的抵抗力,即,稳定裂纹扩展。在特定条件下,通过断裂韧性与裂纹前进(阻力)曲线的单参数描述稳定裂纹扩展是可能的。在这里,实验观察报告(i)表明,由于裂纹的滞后材料的进展,韧性增强可能会被“逆转”的部分卸载,这有影响的阻力曲线和其有效性条件的评价,和(ii)提供了一个实验验证的理论洞察力的力学稳定裂纹扩展。
Materials with the propensity to undergo irreversible deformation display an increasing resistance to progressive crack advance,i.e., stable crack growth. A one-parameter description of stable crack growth by a fracture toughness vs. crack advance (resistance) curve is possible under specific conditions. Here, experimental observations are reported to (i) demonstrate that the toughness enhancement due to crack advance in hysteretic materials may be “reversed” by partial unloading, which has implications on the evaluation of the resistance curve and its validity conditions, and (ii) provide an experimental verification of the theoretical insight into the mechanics of stable crack growth.
DOI: 10.1016/0167-6636(94)00074-3
发表时间: 1995
影响因子: 3.9
作者:
G. Stam;V. Giessen
通讯作者: V. Giessen
DOI: 10.1177/1045389x19888730
发表时间: 2020
影响因子: 2.7
作者:
J. Makkar;T. Baxevanis
通讯作者: T. Baxevanis