Design and fabrication of construction helmet by using hybrid composite material

Composite materials with thermoplastic matrices and a reinforcement of natural fibers are increasingly regarded as an alternative to material replacement for various applications. The substitution of the traditionally used composite of natural fibers such as sisal, banana and jute can lead to a reduction of the component´s weight and furthermore to a significant improvement of specific properties like impact strength, compression strength. One of the major fields of application for such materials can be found in structural components manufacturing of construction helmets. In this project work natural fiber particle reinforced materials such as Sisal, Banana and jute reinforced polymer composite material with epoxy resin has been used for fabrication of construction helmet. Impact strength and compression strength values are identified. The helmet manufacturing aspects are reviewed. Both the thermoplastic and the natural fiber composite shell manufacturing techniques are presented with specific mentioning of the advantages and disadvantages to each type from the manufacturing point of view.