The use of a polarimetric fibre sensor to detect impact damage in aircraft composites

2012 ◽  
pp. 205-209
Author(s):  
I Pitropakis ◽  
H Pfeiffer ◽  
M Wevers
Keyword(s):  
Impact Damage ◽  
Aircraft Composites ◽  
Fibre Sensor

Impact Damage Detection in Aircraft Composites Using Knowledge-based Reasoning

2008 ◽  
Vol 7 (3) ◽  
pp. 215-230 ◽  
Author(s):  
L.E. Mujica ◽  
J. Vehí ◽  
W. Staszewski ◽  
K. Worden
Keyword(s):  
Damage Detection ◽  
Impact Damage ◽  
Knowledge Based ◽  
Aircraft Composites

Status Quo of Research on Impact Damage of Composites in Aircraft

2016 ◽  
Vol 719 ◽  
pp. 33-40
Author(s):  
Wen Jun Chen ◽  
Jing Song Chen ◽  
Wen Bo Cheng ◽  
Lu Chun Zhao
Keyword(s):  
Composite Material ◽  
Composite Laminates ◽  
Impact Test ◽  
Impact Damage ◽  
Status Quo ◽  
Low Energy ◽  
Energy Impact ◽  
Aircraft Composites ◽  
Metal Materials ◽  
The Impact

The application of composites in aircraft was introduced. And compare composites with metal materials. The conclusions referring to the impact test on composite laminates and impact damage characteristics of composite laminates, were summarized by referring to a large number of literature. This investigation shows: composite material is more suitable for the preparation of the overall structure; the research of impact damage test on composites mainly concentrated in the layer order; layer direction and low-energy impact test; and there are clear division and judgment method of four kinds of damage body by studying characteristics of impact damage.Keyword: aircraft; composites; impact damage

Analyses and experimental study about impact damage of COPV

2018 ◽  
Vol 12 (4) ◽  
pp. 302
Author(s):  
Daolian Wang ◽  
Chuanjun Liao ◽  
Wenqiang Li ◽  
Haoran Lu
Keyword(s):  
Experimental Study ◽  
Impact Damage

scholarly journals Hygrothermal Ageing Influence on BVI-Damaged Carbon/Epoxy Coupons under Compression Load

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2038
Author(s):  
Maria Pia Falaschetti ◽  
Matteo Scafé ◽  
Nicola Zavatta ◽  
Enrico Troiani
Keyword(s):  
Residual Strength ◽  
Impact Damage ◽  
Mechanical Analysis ◽  
Test Method ◽  
Combined Loading ◽  
Compression Load ◽  
Impact Location ◽  
Hygrothermal Ageing ◽  
Influence Of Water ◽  
Compressive Tests

Composite materials usage in several industrial fields is now widespread, and this leads to the necessity of overcoming issues that are still currently open. In the aeronautic industry, this is especially true for Barely Visible Impact Damage (BVID) and humidity uptake issues. BVID is the most insidious kind of impact damage, being rather common and not easily detectable. These, along with the ageing that a composite structure could face during its operative life, could be a cause of fatal failures. In this paper, the influence of water absorption on impacted specimens compressive residual strength was studied. Specimens were impacted using a modified Charpy pendulum. Two different locations were chosen for comparison: Near-Edge (NE) and Central (CI). Accelerated hygrothermal ageing was conducted on impacted and reference nonimpacted coupons, placing them in a water-filled jar at 70 °C. Compressive tests were performed in accordance with the Combined Loading Compression (CLC) test method. A Dynamic Mechanical Analysis (DMA) was performed as well. The results showed the influence of hygrothermal ageing, as expected. Nevertheless, the influence of impact location on compressive residual strength is not clearly noticeable in aged specimens, leading to the conclusion that hygrothermal ageing may have a greater effect on composite compressive strength than the analysed BVI damage.

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