SCRIMP和手積法試片之疲勞強度探討

在90年代，SEEMANN公司研發出SCRIMP法來取代傳統的手積法；在1999年由聯設引進國內，形成一種工法上的改革。但手積法和SCRIMP法在製造的過程和成品都有顯著的差異，如樹脂受壓的大小、厚度和纖維含有率等等，也因此吸引吾人想要去研究，2種工法做出的試片，機械性質表現上是否也是有顯著的差異呢？本文先介紹SCRIMP的實驗流程及所需的工具材料，因為整個SCRIMP也是一各寬廣及深入的題目，所以本文將不著重在工法流程，強調實驗上的一些心得建議；接著對2種工法（SCRIMP＆手積法）製做出的五種積層試片，進行4種材料試驗從靜態（拉伸試驗和彎曲試驗）、動態（疲勞試驗和衝擊試驗）來做一個整理和比較，看看是否有哪個工法表現較佳，甚至是哪個積層用哪個工法會表現更好。本文主要的研究焦點是在疲勞試驗，研究試片的疲勞破壞過程、疲勞破壞模式、耐疲勞強度和疲勞破壞相片之整理，此外比較2種工法製做出的試片機械性質強弱與否，以讓未來工程師在設計結構和使用積層組合上有更充分的運用。同時在衝擊試驗從能量的觀點來出發，從實驗方法，到比較單位面積衝擊能量、單位寬衝擊能量，依照4種不同的衝擊能量來做一個比較，以知道哪種工法可以吸收較多的衝擊能量，以及何種工法製做出的試片屬於脆性破壞，剩餘強度較高。透過4種實驗，可以對這兩種工法做一個更深入的瞭解，當以後要應用在不同材料、不同工法時，可以更放心擇其長處加以運用。

關鍵字

疲勞強度； SCRIMP

並列摘要

In 90 decade, SEMANN’s company invented the method of SCRIMP to replace the method of Hand lay-up(HLU) traditionally. In 1999,USDDC introduced from USA, it becomed a revolution of manufacture. But they had differences obious between process of manufacture and product by methods of SCRIMP and hand lay-up, for example the pressure of resin, thickness and fiber content etc. . It cause people wanted to study spicemen of differences of mechanical properties by 2 methods. First, this thesis introduce processes of experiment and tools by SCRIMP, we don’t focus in process of experiment because method of SCRIMP is also wide topic, and to emphasize suggestion of experiment. Then the mechanical properties, tension, bending, fatigue and impact behavior of composite materical manufactured by methods of SCRIMP and hand lay-up are tested. Four types of material test (tension, bending, fatigue and impact) and five kinds of specimens were considered in the experiments This thesis focus in the fatigue experiment, we studied the fatigue damage processes, fatigue damage modes, fatigue strength and pictures of destruct, then to compared and discussed in the thesis, experimental processes of SCRIMP. In impact test, our points of view by energy, to compare impact energy of unit area, impact energy of unit wide, we could know which one method could accept higher impact energy, which one specimen of methods belonged destroy of brittle. The bending load by method of hand lay-up was better than one by method of SCRIMP, the fatigue strength by method of hand lay-up was better, the impact behavior by method of hand lay-up was also better, but ductility by method of SCRIMP was better. The test data may useful for structure design of marine engineer.

並列關鍵字

SCRIMP

參考文獻

[11] C.D.Williams,S.M.Grove and J.Summerscales”The compression response of fiber-reinforced plastic plate during manufacture by the resin infusion under flexible tooling method”,Composites Part A 29A(1998),pp111-114.

[13] Kerang Han,Shunliang Jiang,Chuck Zhang,Ben Wang,”Flow modeling and simulation of SCRIMP for composites manufacturing”,composites Part A 31(2000),pp79-86.

[1] JIS K 7054。