In this paper, the uniaxial tensile mechanical characteristics after synchronous biaxial pre-tension analysis are investigated on a ETFE film crown model. After the biaxial pre-stretching is completed, the rectangular specimens are cut along the MD and TD directions of the biaxially pre-stretched ETFE film to conduct the uniaxial stretching test. The uniaxial tensile mechanical properties of the ETFE film after biaxial pre-stretching are investigated, the specific uniaxial tensile mechanical property parameters of the biaxially pre-stretched film are determined, and the influence of biaxial pre-stretching on the uniaxial tensile mechanical properties of the ETFE film is analyzed.

Abstract
1. 서론
2. 동시인장을 받는 ETFE필름 제작
    2.1 동시인장 양방향 인장 재료 및 장치
    2.2 동시인장을 받는 필름에서 변형율과 크라운 높이의 관계
    2.3 일축인장 시편의 절단
    2.4 대상 이미지 후처리
    2.5 동시인장 시 확장 데이터 처리
    2.6 동시인장 필름의 일축인장시험 결과
3. 동시인장 후 필름의 일축인장 기계적특성 분석
4. 결론
감사의 글
References

• 김재열(협성대학교 건축공학과 교수, 공학박사) | Kim Jae-Yeol (Professor, Ph.D, Department of Architectural Engineering, Hyupsung University)
• 심천보(협성대학교 건축공학과 연구원, 공학석사) | Shim Chun-Bo (Dept. of Architectural Eng., Hyupsung University) Corresponding author
• 전상현(지원이엔지 대표, 공학박사) | Jeon Sang-Hyun
• 김희균(㈜에코닝 연구소장, 이사, 공학박사) | Kim Hee-Kyun