Enhancing toughness through geometric control of the process zone
Enhancing toughness through geometric control of the process zone
复制标题
通过加工区域的几何控制增强韧性
DOI:
10.1016/j.jmps.2024.105548
复制
发表时间:
2024
影响因子:
5.3
通讯作者:
Turner, Kevin T.
中科院分区:
文献类型:
--
作者:
Fulco, Sage;Budzik, Michal K.;Turner, Kevin T.
Material architecture provides an opportunity to alter and control the fracture process zone shape and volume by redistributing the local stresses at a crack tip. Properly designed structures can enlarge the plastic zone and enhance the effective toughness. Here, we use a pillar array as a model structure to demonstrate how variations in geometry at a crack tip control the size and shape of the plastic zone and can be used to engineer the effective toughness. Elastic–plastic finite element simulations are used to quantify how the pillar width, spacing, and height can be varied to tailor the size and shape of the plastic zone. A set of analytical mechanics models that accurately estimate the shape, volume, and resulting toughness as a function of the base material properties and geometry are also presented. A case study extends the analysis to sets of non-regular pillar arrays to illustrate how architecture can be used to alter toughness along the crack path.
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DOI:
--
发表时间:
2020
期刊:
影响因子:
--
作者:
Rajaprakash Ramachandramoorthy;Maxime Mieszala;C. Manzano;X. Maeder;J. Michler;L. Philippe
通讯作者:
L. Philippe
DOI:
10.1016/j.ijsolstr.2017.05.013
发表时间:
2017-08
影响因子:
3.6
作者:
Simon Heide-Jørgensen;M. Budzik
通讯作者:
Simon Heide-Jørgensen;M. Budzik
影响因子:
5.3
作者:
Shengzhi Luan;Enze Chen;Stavros Gaitanaros
通讯作者:
Stavros Gaitanaros
影响因子:
5.3
作者:
O'Masta, M. R.;Dong, L.;Deshpande, V. S.
通讯作者:
Deshpande, V. S.
影响因子:
5.3
作者:
Heide-Jørgensen, Simon;Budzik, Michal K.;Turner, Kevin T.
通讯作者:
Turner, Kevin T.