Optimisation of the durability of high-stress fabric for nautical application

风筝、风帆冲浪和冷水冲浪是一项竞争激烈的水上运动，对其设备的机械性能有大量的特殊要求。事实上，这项运动的核心要求之一是大型充气风筝，这些风筝用于利用风力，将冲浪者高速发射到空中。与任何专为飞行而设计的产品一样，飞行特性(空气动力学、重量、抗撕裂性...)在性能(速度、飞行高度)和易用性方面，这些风筝对冲浪者来说是极其重要的。在过去的一年里，主要品牌制造商专注于风筝设计的一个关键领域：迎风航行。更好的雷风性能可以让用户在风和海比大风更平静、更不可怕的时候更快地下水。在比赛中，即使风降到低水平，也能确保赛事的连续性。这种专注导致业界对他们的产品进行了大规模的减重。在过去的十年里，一只风筝的平均重量从4.5公斤下降到3.2公斤。然而，以目前市场上使用的帆板材料来说，技术极限很快就会达到。在这种速度下，高性能风筝的苛刻和要求将不再被满足。该项目的目标是开发和优化一种新材料：一种层压轻质聚合物机织材料。聚合物的性质将赋予风筝抗冲击和耐磨性，而组装工艺将为风筝提供轻便和可操作性。这种新材料是为水上运动而设计的，未来可能会扩大他在其他极端户外领域的应用范围，如航空航天或帆船运动。

Kiteboarding, wind surfing and cold water surfing are highly competitive water sport with a large number of specific needs on the mechanical properties of their equipment. Indeed, one of the central requirements of the sports is the large and inflatable kites which are used to harness the power of the wind and launch the surfer into the air at high speed. As with any product that is designed to fly, the flight characteristics (aerodynamics, weight, resistance to tear...) of theses kites are extremely important for the surfer, in terms of performance (speed, altitude of flight) and ease of use.Over the last year, the major brand manufacturers focused on one key area of the kite design: lightwind sailing. Better lightwind performance allows users to get on the water sooner, when the wind and the sea are calmer and less intimidating than high wind days. In competition, it ensures the continuity of the event even if the wind drops to low levels.This focus led industry to perform massive weight reduction on their products. Over the past decade, the average weight of a kite drop from 4,5 kgs to 3,2 kgs. However, the technical limit will be soon reached with the current sail materials used in the market. The rigors and demands of the high performance kites would no longer be fulfilled at this rate.The objective of this project is the development and the process optimization of a new material: a laminated lightweight polymer woven. The nature of the polymer will confer shock and abrasion resistance while the assembly processes will provide lightness and maneuverability to the kite. Built for the water sport, this new material could, in the future, expand his range of application in other "extreme outdoor" field like aerospace or sailing.