레포트자료재료실험

레포트자료재료실험

[레포트자료]재료실험.doc

본문 < 보고서 > 인장 시험에 의한 기계적 물성의 측정 이유진† 오병문* 한대섭** 김준태***(11조) Measurement of mechanical properties by tensile test Yu-Jin Lee † Byung-Moon Oh* Dae-Seop Han** Jun-Tae Kim *** Yield strength, elongation, strain rate sensitivity, strain-hardening exponent Abstract The main purpose of this experiment is to figure out some materials' properties by tensile test. Specimens was Al 6061, carbon steel and polycarbonate. Two Al6061 specimens among five was treated by heat until 500℃ and then cooled by quenching, the other two specimens are treated by heat until 300℃ and then cool same way. Each one specimen is applied aging at 150℃ for 8hours. Compare the properties of each specimen through heat treatment and non heat treatment. Carbon steel and Al 6061 are affected by heat treatment. Three carbon steel specimens among six are treated by heat until 850℃ and then cooled by quenching. Observe brittle between quenching and not. And polycarbonate is experimented according to change of crosshead speed. The experiment of polycarbonate will be shown up difference strain and strain rate sensitivity from crosshead speed. (다시쓰기) Introduction Tensile test is very important at ductility materials that mainly applied tensile force. For looking that ductility material like Al6061 is applied tensile. And to know how to applied, brittleness material like carbon steel also is taken tensile test. And each material treated by heating because of searching for difference according to heat treats. But for polycarbonate is thermoplastic, this specimen is applied tensile force with difference crosshead speed. Through this experiment, stress-strain curve will be got about data from linear region to fracture. 이유진, 2008106040 (학번) Tel: 010 4252 0520 E-mail: uzin_good@naver.com * 오병문, 2005106035 (학번) Tel: 010 9380 0501 ** 한대섭, 2005106061 (학번) Tel: 010 6345 1726 *** 김준태, 2006106016 (학번) Tel: 010 6377 0539 Background 2.1 True stress and true strain 하고 싶은 말 좀 더 업그레이드하여 자료를 보완하여, 과제물을 꼼꼼하게 정성을 들어 작성했습니다. 위 자료 요약정리 잘되어 있으니 잘 참고하시어 학업에 나날이 발전이 있기를 기원합니다 ^^ 구입자 분의 앞날에 항상 무궁한 발전과 행복과 행운이 깃들기를 홧팅 키워드 학번, 김준태, 오병문, 이유진, 인장, 측정