Crack path competition and biomimetic toughening strategy in soda-lime glass: Experimental study and phase-field simulation

被引：0

作者：

Cao, Miao ^{[1
]}

Qin, Ying ^{[1
]}

Cao, Xiaofei ^{[1
]}

Wang, Siying ^{[1
]}

Liu, Jili ^{[1
]}

Xu, Shuang ^{[1
]}

Lin, Yongshui ^{[1
]}

Cao, Weidong ^{[2
]}

He, Chunwang ^{[3
]}

机构：

[1] Wuhan Univ Technol, Sch Phys & Mech, Dept Engn Mech, Hubei Key Lab Theory & Applicat Adv Mat Mech, Wuhan 430070, Peoples R China

[2] Jiangsu Univ, Res Ctr Fluid Machinery Engn & Technol, Zhenjiang 212013, Peoples R China

[3] Beijing Inst Technol, Inst Adv Struct Technol, Beijing 100081, Peoples R China

来源：

THEORETICAL AND APPLIED FRACTURE MECHANICS | 2025年 / 139卷

基金：

中国国家自然科学基金;

关键词：

Brittle fracture; Crack propagation path; Phase field method; Competition mechanism; Bio-inspired toughening design; FRACTURE; FAILURE; PROPAGATION;

D O I：

10.1016/j.tafmec.2025.105092

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Catastrophic fracture in brittle materials has brought persistent challenges in engineering applications. The geometry-induced competition mechanisms as well as the toughening design strategies were limited. In this work, the fracture behavior of soda-lime glass plates was investigated through a combined approach of experimental testing and phase-field numerical simulation. Linear groove defects with varying thickness and inclination angles were introduced to manipulate the crack trajectory and load response. Three representative fracture modes, including Complete deflection, Partial deflection, and Penetration, were observed and the inner competition mechanisms were clarified. Then, a bio-inspired trapezoidal groove structure was proposed and its toughening effect was discussed, which provided a geometrically tunable strategy for crack guidance and toughening. This study revealed the intrinsic mechanisms behind crack path competition in brittle materials. It also provided a practical applicable method for the toughening design of brittle structures.

引用

页数：15

共 58 条

[1] Phase-field modeling of crack propagation in piezoelectric and ferroelectric materials with different electromechanical crack conditions [J].