Relaxation of residual stresses during curing of polymer matrix composites

2018 ◽  
Author(s):  
Francesca Lionetto ◽  
Antonio Greco ◽  
Francesco Montagna ◽  
Anna Moscatello ◽  
Alfonso Maffezzoli
Keyword(s):  
Residual Stresses ◽  
Polymer Matrix ◽  
Polymer Matrix Composites ◽  
Matrix Composites ◽  
Curing Of Polymer

scholarly journals A Review of Prestressed Fibre-Reinforced Polymer Matrix Composites

Polymers ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 60
Author(s):  
Raphael Olabanji Ogunleye ◽  
Sona Rusnakova
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Residual Stresses ◽  
Matrix Composite ◽  
Polymer Matrix ◽  
Moisture Absorption ◽  
Polymer Matrix Composites ◽  
Great Influence ◽  
Polymer Matrix Composite ◽  
Matrix Composites

This review examines various studies on reducing tensile stresses generated in a polymer matrix composite without increasing the mass or dimension of the material. The sources of residual stresses and their impacts on the developed composite were identified, and the different techniques used in limiting residual stresses were also discussed. Furthermore, the review elaborates on fibre-prestressing techniques based on elastically (EPPMC) and viscoelastically (VPPMC) prestressed polymer matrix composites, while advantages and limitations associated with EPPMC and VPPMC methods are also explained. The report shows that tensile residual stresses are induced in a polymer matrix composite during production as a result of unequal expansion, moisture absorption and chemical shrinkage; their manifestations have detrimental effects on the mechanical properties of the polymer composite. Both EPPMC and VPPMC have great influence in reducing residual stresses in the polymer matrix and thereby improving the mechanical properties of composite materials. The reports from this study provide some basis for selecting a suitable technique for prestressing as well as measuring residual stresses in composite materials.

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