The flexural properties of plain-weave woven fabric-reinforced composites have been investigated to clarify the effects of
equi-biaxially fabric prestressing on flexural characteristics. The prestressed composite samples were manufactured by
applying the symmetrical tension load to both warp and weft yarns prior to matrix curing. The fabricated samples were
tested under different fabric orientation angles, i.e. from warp to bias direction. The decline in the flexural properties of
the prestressed composite due to matrix creep was checked. From three-point bending tests, the prestressed samples
exhibited a maximum increase in the flexural performance, such as the strength and modulus, of 16% at a prestressing
level of 50 MPa when compared with unprestressed counterparts. The level of improvement in the flexural properties
reduced with increasing fabric orientation angle. The creep was induced in the prestressed matrix and subsequent
decline in the improved flexural properties was indicated in the prestressed samples. The decline in flexural properties
occurred mostly during the short-term creep.