Application of the size effect law to the determination of R-curves for transverse cracking in polymer matrix composite laminates using single edge notched bend specimens

被引：0

作者：

Kusaka, Takayuki ^{[1
]}

Oshima, Sota ^{[2
]}

Gao, Chong ^{[1
]}

机构：

[1] Ritsumeikan Univ, Dept Mech Engn, 1-1-1 Noji Higashi, Kusatsu 5258577, Japan

[2] Tokyo Metropolitan Univ, Dept Aeronaut & Astronaut, Asahigaoka 6-6, Hino 1910065, Japan

来源：

ENGINEERING FRACTURE MECHANICS | 2024年 / 309卷

关键词：

Composite materials; Transverse cracking; Size effect law; R-curve; Crack growth behavior; INTRALAMINAR FRACTURE; RESISTANCE CURVE; ENERGY;

D O I：

10.1016/j.engfracmech.2024.110425

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The R-curves for transverse cracking could be determined based on the size effect law using SENB specimens, where the R-curves determined by the size effect law were consistent with those determined by the compliance method. The crack growth resistance in the steady-state and the crack extension at the onset of the steady-state of carbon-fiber/epoxy laminates, T800S/2592, were determined to be 0.22 N/mm and 0.36 mm, respectively. The crack growth stability in SENB specimens depended not only on the load control method but also on the specimen geometry, whereas a unique R-curve could be obtained regardless of the crack growth stability.

引用

页数：18