Evaluating the compressive strength of stepped scarf repaired single stiffener composite panels

被引：4

作者：

Psarras, Spyridon ^{[1
,2
]}

Loutas, Theodoros ^{[1
]}

Sotiriadis, George ^{[1
]}

Kostopoulos, Vassilis ^{[1
]}

机构：

[1] Univ Patras, Mech Engn & Aeronaut Dept, Lab Appl Mech, Patras, Greece

[2] Univ Patras, Mech Engn & Aeronaut Dept, Lab Appl Mech, Rio Campus, Patras 26504, Greece

来源：

JOURNAL OF COMPOSITE MATERIALS | 2023年 / 57卷 / 18期

关键词：

Repairs; composites; stepped scarf; finite elements; POSTBUCKLING BEHAVIOR; JOINTS; OPTIMIZATION;

D O I：

10.1177/00219983231178684

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

In this study, tests were carried out on repaired 300 x 250 mm composite stiffened panels. The initial damage was assumed to be extended in a depth of the first six plies and a repair with scarf ratio of 1:50 was employed. A circular repair took place, utilizing laser-assisted ablation and the wet patches approach. The panels were tested in compression and Digital Image Correlation (DIC) and Acoustic Emission (AE) were used in order to monitor the damage initiation and propagation of the panels. In addition, Phased Array (PA) was used in order to monitor the patch failure. Detailed Finite Elements (FE) models were validated against the test findings and their performance as a prediction tool for the performance of repairs on composite aeronautical structures was assessed.

引用

页码：2887 / 2898

页数：12

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