A fracture mechanics study of stress resultant intensity factors in stiffened panels employing RKPM meshfree FSDT modeling

被引：2

作者：

Tanaka, Satoyuki ^{[1
]}

Takata, Akihiro ^{[1
]}

Matsuoka, Naoki ^{[1
]}

Sadamoto, Shota ^{[1
,2
]}

机构：

[1] Hiroshima Univ, Grad Sch Adv Sci & Engn, 4-1 Kagamiyama 1 Chome, Higashihiroshima 7398527, Japan

[2] Fujitsu Ltd, 4-1-1 Kamikodanaka,Nakahara Ku, Kawasaki, Kanagawa 2118588, Japan

来源：

THIN-WALLED STRUCTURES | 2024年 / 197卷

关键词：

Stiffened panel; Stress intensity factor; Meshfree modeling; Reproducing kernel particle method; CONFORMING NODAL INTEGRATION; SHEAR-DEFORMABLE PLATES; CRACK-GROWTH ANALYSIS; FREE GALERKIN METHOD; FINITE-ELEMENT; VIBRATION ANALYSIS; ULTIMATE STRENGTH; BUCKLING ANALYSIS; THIN; LOCKING;

D O I：

10.1016/j.tws.2024.111634

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Panel cracking for stiffened panels is investigated based on linear elastic fracture mechanics. Meshfree flat shell formulation and fracture modeling are employed. After investigating stress distribution of the intact stiffened panel, the mode -I and mixed -mode crackings are studied using the stress resultant intensity factors (SRIFs). When the crack tip approaches to the stiffener, deformation around the crack is suppressed due to presence of the stiffeners. The mechanical behaviors are carefully examined by changing crack length, loading conditions and thickness of the main panel and stiffeners. Quantitative evaluation of SRIFs is addressed by comparing with the reference solutions. An in-depth discussion is provided for the meshfree modeling of the panel cracking in the stiffened panels. This series studies are useful for examining crack arrest effect of the stiffened panel due to presence of the stiffeners.

引用

页数：15