The Charpy and Izod impact tests are the most prevalent techniques used to characterize the effects of high impulse loads on polymeric materials. An analysis method for rubber toughened PVC is suggested to evaluated critical dynamic strain energy release rates(Gc) from the Charpy impact tester was used to extract ancillary information concerning fracture parameters in additional to total fracture energies and maximum critical loads. The dynamic stress intensity factor KID was computed for varying amounts of rubber contents from the obtain maximum critical loads and also toughening effects were investigated as well. The fracture surfaces produced under low velocity impact for PVC/MBS composites were investigated by SEM. The results show that MBS rubber is very effective reinforcement material for toughening PVC.

Abstract
 1. 서론
 2. 기본이론
  2.1 파단에너지로부터 동적 에너지 해방률 (Gc ) 계산
  2.2 동적 파괴 인성치(KID)의 계산
 3. 실험방법 및 절차
  3.1 실험 장치
  3.2 실험 방법
 4. 실험결과 및 고찰
 5. 결론
 6. 참고문헌

• 구본성
• 박명균
• 박세만