This study discussed the effects of inclined interface location to apply the design of inclined interface of composite materials subjected to shear loading. The fracture parameters are analyzed by finite element method of ANSYS. As a results, If in case of the angle of inclination is 45 degrees, inclined interface is longer and the crack tip is closer, the less the crack suppression effect. If the inclined interface location is a more than twice the length of the inclined interface, the effect of suppressing crack propagation are constant regardless of the location. In case of the inclined interface is longer and the crack tip is closer, the cause of increase of energy release rate is a due to the increase of shear stress. If in case of the angle of inclination is 90 degrees, inclined interface is closer to the crack tip, the better the crack suppression effect. If the inclined interface location is a less than twice the length of the inclined interface, the effect of suppressing crack propagation are dominant. And if the inclined interface location is a more than twice the length of the inclined interface, crack suppression effect is gradually reduced.

ABSTRACT
1. 서 론
2. 파라메타와 해석 모델
    2.1 매개 변수(Parameter)
    2.2 해석 모델
3. 변위법과 응력확대계수의 결정
    3.1 변위법에 의한 응력확대계수의 분리
    3.2 변위법 적용을 위한 외삽 영역 결정
4. 해석 결과
    4.1 음의 전단변위 부여하의 경사계면의 위치 효과
    4.2 경사계면의 위치에 따른 응력분포(Φ=45º)
    4.3 경사계면 위치의 일반화
5. 결 론
References

• 최병선(School of Mechanical & Automotive Engineering, Daegu Catholic University) | Byung-Sun Choi Corresponding Author