在玻璃纤维船建造的早期,材料的耐用性和强度被低估了。建造者形成了厚实的船体,带有一体式管状肋和纵梁。当时建造的唯一方法是使用浸渍丙烯酸树脂的玻璃纤维层,在固化时硬化。大型模具允许整个船体制成一体,没有接缝。船体内部增加了一些木结构以增加刚性,并用更多的玻璃纤维材料粘合在一起。如今所做的那样,没有采取预防措施来压缩固化船体或消除结构中的气泡。我们知道这种方法是坚实的核心结构。由于这是计算机辅助设计工具之前的时间,美国西北部的建筑商使用旧的默认方法建造的更好。 1956年,当第一艘玻璃纤维船建成时,这种材料非常新,但已经在航空和汽车行业得到认可。它没有在岩石上撞击让水进入木材层。小裂缝使木材变得浸透并膨胀,然后腐烂。不久,内外玻璃纤维层无法完成其工作,并因反复弯曲而失效。玻璃纤维材料仍然很昂贵,随着对这些新船的需求增加,制造商开始削减成本以在市场上竞争。不久,添加了一层木材来减轻和加强船体和甲板。玻璃纤维和木质三明治是一个很好的组合,直到玻璃纤维的一个外表面被破坏。这被称为木芯构造。这是第一种类型的玻璃纤维分层,由于许多制造商已经过渡到所有玻璃纤维结构,留下了更多传统材料,因此失败严重损坏了造船业。由于分层问题,玻璃纤维结构很快被称为质量差。

新加坡南洋理工学院物理学Assignment代写:玻璃纤维分层

In the early days of fiberglass boat construction the durability and strength of the material was underestimated. Builders formed thick hulls with integrated tubular ribs and stringers. The only way to build at that time used layers of fiberglass impregnated with acrylic resin that hardened when cured. Large molds allowed entire hulls to be made as one piece with no seams. Some wooden structure was added inside the hull for rigidity and it was bonded in with more fiberglass material. No precautions were taken to compress the curing hull or eliminate air bubbles in the structure as is done today. We know this method as solid core construction. Since this was the time before computer aided design tools, builders in the North Western United States built using the old default method of more is better. In 1956, when the first fiberglass boat was built, the material was very new but already found acceptance in aviation and automotive industries. It didn’t take a crash on the rocks to let water into the wood layer. Small cracks allowed the wood to become soaked and it swelled, and then rotted. Soon the inner and outer fiberglass layers couldn’t do their job and broke down from repeated flexing. Fiberglass materials remained expensive, and as demand for these new boats increased, manufactures began cutting costs to compete in the marketplace. Soon a layer of wood was added to lighten and strengthen the hulls and decks. The fiberglass and wood sandwich was a great combination until one of the outer surfaces of the fiberglass was breached. This is called wood core construction. This was the first type of fiberglass delamination and the failures damaged the boat building industry badly since many manufacturers had transitioned to all fiberglass construction, leaving more traditional materials behind. Fiberglass construction was quickly becoming known as poor quality because of delamination issues.

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