The objectives and novelty of this paper are to create a hybrid-natural fibre composite by the Response Surface Methodology RMS technique, and then compared this hybrid composite with the individual fibre reinforced composites in the bending test. The first aim of this study is devoted to analyse, modelize and optimise the various independent variables such as the type of fibres (X₁), the types of chemical treatment (X₂), the volume fraction of fibre (X₃) and the treatment duration (X₄) used on the output parameters which are the mechanical characteristics namely, ultimate flexural stress and flexural modulus in the bending test using a Box-Behnken experimental design. Mathematical models for ultimate flexural strength and flexural modulus were developed using the response surface methodology (RSM). These models would be helpful in selecting independent variables in order to maximize the flexural mechanical properties. Statistical analysis of the results showed that selected variables had a significant effect on the flexural properties, except the treatment time that has a very weak significance effect on the flexural properties. In the second section, the impact behaviors of the natural hybrid composites found by the RMS method were confirmed experimentally. Finally, the experimental results indicate that the flexural properties of the natural hybrid composites increase with an increase in the composition of jute fibres.

本文的目的和新颖性是通过响应表面方法RMS技术创建一种杂化天然纤维复合材料，然后在弯曲试验中将该杂化复合材料与单独的纤维增强复合材料进行比较。这项研究的第一个目标是致力于分析，建模和优化各种独立变量，例如纤维类型（X ₁），化学处理类型（X ₂），纤维体积分数（X ₃）和治疗时间（X ₄）在输出参数上使用，这些参数是机械特性，即使用Box-Behnken实验设计进行的弯曲测试中的极限弯曲应力和弯曲模量。使用响应表面方法（RSM）建立了极限弯曲强度和弯曲模量的数学模型。这些模型将有助于选择自变量以最大化弯曲机械性能。结果的统计分析表明，选定的变量对弯曲性能有显着影响，但处理时间对弯曲性能的影响很小。在第二部分中，通过实验证实了通过RMS方法发现的天然杂化复合材料的冲击行为。最后，