Carbon fiber fabrics have been largely used in composite structures as they provide high mechanical strength and potential weigh reduction, allowing more efficiency in product design. However, the production of the parts generates scraps that is discarded as a waste, becoming a challenge to recycle the carbon fiber with predictable mechanical strength. Within this context, this research analyzed strategies of laying up carbon woven fabrics based scraps, in order to reach a desirable mechanical properties in bending loading. Three types of laminates were manufactured using varied fabric size and number of discontinuities in the layup combined with polyethylene terephthalate (PET) film as a matrix. The obtained composites were tested under four-point-bending test and an energy-strength based analysis was conducted. This analysis explained a strategic position of fabric scrap to maximize the bending strength: providing a value of 106.33 MPa for a composite with high number of discontinuities against 83.11 MPa for another with less discontinuity.

碳纤维织物已大量用于复合结构，因为它们提供高机械强度和潜在的减重能力，从而提高产品设计的效率。然而，零件的生产会产生作为废物丢弃的废料，这成为回收具有可预测机械强度的碳纤维的挑战。在此背景下，本研究分析了以碳纤维织物为基础的废料堆放策略，以在弯曲载荷下达到理想的机械性能。三种类型的层压板使用不同的织物尺寸和叠层中的不连续性数量与聚对苯二甲酸乙二醇酯 (PET) 膜作为基质制造而成。获得的复合材料在四点弯曲试验下进行了测试，并进行了基于能量强度的分析。