조적요소의 인장응력-변형률 관계 평가 = Evaluation of Tensile Stress-strain Relationship of Masonry Elements

다국어 초록 (Multilingual Abstract)

The purpose of this study is to provide and evaluate the tensile properties of masonry element such as tensile strength, strain, modulus of elasticity and stress-strain relationship through the direct tension test with varies of mortar strength. From the experiment, the tension fracture was observed along the interfaces between the brick and the mortar. Tension properties of masonry element was significantly affected by compressive strength of mortar, , indicating that higher tensile strength and modulus of elasticity of masonry element were obtained with increase of . The strain of a masonry element was inversely proportional to due to the lower ductility of a higher mortar strength. A tensile stress-strain relationship of masonry element was generalized based on the numerical analysis and the regression analysis using test data. The proposed model shows fairly good agreement with the test measurements.

국문 초록 (Abstract)

본 연구의 목적은 모르타르 강도를 변수로한 직접인장실험을 통해 조적요소의 인장강도, 변형률, 탄성계수 그리고 응력-변형률 관계와 같은 인장특성을 제공하고 평가하는데 있다. 실험으로 부터 벽돌과 모르타르 접촉면을 따라 인장파괴가 발생함을 관찰하였다. 조적요소의 인장특성은 모르타르 강도의 영향을 받았다. 즉, 모르타르 강도가 증가하면 인장강도와 인장탄성계수가 증가한 반면,변형률은 모르타르 강도에 반비례하였다. 수치해석 및 실험 데이터의 회귀분석을 통해 조적요소의 인장응력-변형률 모델을 제시하였다.

참고문헌 (Reference)

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