Discrete element approach to simulate debonding process in 3D short glass fibre composite materials: Application to PA6/GF30

2021 ◽  
Vol 270 ◽  
pp. 114035
Author(s):  
A. Ammar ◽  
W. Leclerc ◽  
M. Guessasma ◽  
N. Haddar
Keyword(s):  
Composite Materials ◽  
Glass Fibre ◽  
Fibre Composite ◽  
Discrete Element ◽  
Short Glass Fibre ◽  
Element Approach ◽  
Short Glass ◽  
Glass Fibre Composite ◽  
Debonding Process

scholarly journals Processing and Testing of Reinforced PA66 Based Composites

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7299
Author(s):  
Alejandro Pereira ◽  
Alberto Tielas ◽  
Teresa Prado ◽  
Maria Fenollera ◽  
José Antonio Pérez
Keyword(s):  
Composite Materials ◽  
Glass Fibre ◽  
High Rate ◽  
Injection Process ◽  
Production Processes ◽  
Short Glass Fibre ◽  
The Matrix ◽  
Plastic Injection ◽  
Short Glass ◽  
Resistance Tests

The new requirements in different sectors, such as aerospace, automotive and construction, for lightweight materials have led to an increase in demand for composite materials suitable for use in high rate production processes, such as plastic injection. This makes it necessary to look for matrices and reinforcements that, in addition to being compatible with each other, are also compatible with the injection process. It is in this area of research where the work presented here arises. To meet the two requirements mentioned above, this study contemplates a battery of composite materials obtained by combining PA66 and fiberglass, in different proportions and configuration, both for the preparation of the matrix and for reinforcement. For the elaboration of the matrix, two options have been evaluated, PA66 and PA66 reinforced at 35% with short glass fibre. To obtain reinforcement, six different options have been evaluated; two conventional fiberglass fabrics (each with different density) and four hybrid fabrics obtained from the previous ones by adding PA66 in different configurations (two over-stitched fabrics and two other fabrics). The different composite materials obtained were validated by means of the corresponding adhesion, peeling and resistance tests.

scholarly journals The Effect of Accelerated Ageing on Reaction-to-Fire Properties–Composite Materials

2021 ◽  
Author(s):  
Anna Sandinge ◽  
Per Blomqvist ◽  
Lars Schiøtt Sørensen ◽  
Anne Dederichs
Keyword(s):  
Composite Materials ◽  
Glass Fibre ◽  
Fibre Composite ◽  
Thermal Ageing ◽  
Gas Analysis ◽  
Accelerated Ageing ◽  
Fire Behaviour ◽  
Increased Temperature ◽  
Fire Properties ◽  
Glass Fibre Composite

AbstractAs material age, the durability, strength, and other mechanical properties are impacted. The lifespan of a material generally decreases when exposed to weathering conditions such as wind, temperature, humidity, and light. It is important to have knowledge of how materials age and how the material properties are affected. Regarding materials´ fire behaviour and the effect of ageing on these properties, the knowledge is limited. The research questions of the current work are: Are the fire properties of composite materials affected by ageing? And if so, how is it affected? The study is on material at Technology Readiness Level 9 (TRL). In this study, three composite fibre laminates developed for marine applications were exposed to accelerated ageing. Two different ageing conditions were selected, thermal ageing with an increased temperature of 90°C and moisture ageing in a moderately increased temperature of 40°C and a relative humidity of 90%. Samples were collected after one, two and four weeks of ageing. The reaction-to-fire properties after ageing was evaluated using the ISO 5660–1 cone calorimeter and the EN ISO 5659–2 smoke chamber with FTIR gas analysis. The test results showed that the fire behaviour was affected. Two of the composite laminates, both phenolic/basalt composites, showed a deteriorated fire behaviour from the thermal ageing and the third composite laminate, a PFA/glass fibre composite, showed an improved fire behaviour both for thermal and moisture ageing. The smoke toxicity was affected by the accelerated ageing, especially for the PFA/glass fibre composite that showed a higher production of CO and HCN, both for the thermal aged and the moisture aged samples.

scholarly journals Repeated impact of simulated hail ice on glass fibre composite materials

Wear ◽  
2019 ◽  
Vol 432-433 ◽  
pp. 102926
Author(s):  
Hamish Macdonald ◽  
David Nash ◽  
Margaret M. Stack
Keyword(s):  
Composite Materials ◽  
Glass Fibre ◽  
Fibre Composite ◽  
Repeated Impact ◽  
Glass Fibre Composite

scholarly journals Optimization of Piezo-fibre Composite with IDE Embedded in a Multilayer Glass Fibre Composite

2014 ◽  
Vol 6 ◽  
pp. 1207-1216 ◽  
Author(s):  
B. Vinod Kumar ◽  
Anoop Raveendran ◽  
Victor Davis
Keyword(s):  
Glass Fibre ◽  
Fibre Composite ◽  
Glass Fibre Composite
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