1 변철민 Dept. of Biomed. Eng.BME303:Applied Electronic CircuitKyung Hee Univ.

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1 변철민 Dept. of Biomed. Eng.BME303:Applied Electronic CircuitKyung Hee Univ.

2 변철민 Dept. of Biomed. Eng.BME303:Applied Electronic CircuitKyung Hee Univ. 1. Stress and Strain 2. Strain Gage 3. Bridge circuit 4. Ex 2.40 Contents

3 변철민 Dept. of Biomed. Eng.BME303:Applied Electronic CircuitKyung Hee Univ. Stress and Strain Axial load 평균 스트레스 단면적 A F L F 평균 스트레인 n x

4 변철민 Dept. of Biomed. Eng.BME303:Applied Electronic CircuitKyung Hee Univ. 1. Brittle material(glass) rupture nonlinear

5 변철민 Dept. of Biomed. Eng.BME303:Applied Electronic CircuitKyung Hee Univ. 2. Ductile material(Al, steel) rupture Elastic region Plastic region Elas tic regi on rupture Steel For elastic region( < ) Young’s modulus Modulus of elasticity

6 변철민 Dept. of Biomed. Eng.BME303:Applied Electronic CircuitKyung Hee Univ. L S strain

7 변철민 Dept. of Biomed. Eng.BME303:Applied Electronic CircuitKyung Hee Univ. s1s2 s3 s4 s3 s4 F Conti lever s1s2 s3 s4 F

8 변철민 Dept. of Biomed. Eng.BME303:Applied Electronic CircuitKyung Hee Univ. Bridge circuit Strain Gage 는 주로 4arms bridge 회로 Slope=2AV REF

9 변철민 Dept. of Biomed. Eng.BME303:Applied Electronic CircuitKyung Hee Univ. 2 장을 마치며 2.40 해석 !! a 에서 KCL

10 변철민 Dept. of Biomed. Eng.BME303:Applied Electronic CircuitKyung Hee Univ. Thank You!