Impact Strength Analysis of Lake Tana Papyrus/Glass Fiber Hybrid Composite with Polyester Resin. Wondem Sewagegnehu Bahir Dar University, 2018 The main objective of this thesis is to Fabricate and characterize the impact strength of hybrid composite Lake Tana papyrus and glass fiber with polyester Resin. This is achieved by conducting different arrangement methods to investigate the hybrid composite impact strength, the first one is by varying the percentage content of the natural fiber for papyrus composite (30%/70%), (20%/80%) and for Papyrus Glass fiber hybrid composite (15%/15%/70%) and (10%/10%/70%) with 70% fixed value of polyester. The other method is by changing the arrangement of the fibers as follows; unidirectional, woven and random/Chopped/ both fiber glass and papyrus respectively. The Papyrus/Glass fiber hybrid composite is prepared manually by hand lay-up method. Twelve samples were fabricated for each lamina and percentage content. After the samples are manufactured the test pieces are cut according to ASTM E23 standard. Tests are conducted on IZOD impact testing machine for low velocity. Addition to experimental work, samples were analysed using Finite Element Analysis with ANSYS. The maximum impact strength is observed for composite with 15 wt% Papyrus fiber loading and unidirectional fiber orientations that is 28.53kJ/m2 with Equivalent Von-Mises 45.403 MPa. And minimum values of impact strength were observed in chopped 30%/70%, which is 18.27kJ/m2 with Equivalent VonMises 317.88 MPa.