낙하충격실험을 통한 고무의 충격흡수성능과 전단계수 평가Determination of Shock Absorption Performance and Shear Modulus of Rubbers by Drop Impact Test
- Other Titles
- Determination of Shock Absorption Performance and Shear Modulus of Rubbers by Drop Impact Test
- Authors
- 강동환; 서무열; 김학인; 김태원
- Issue Date
- Apr-2009
- Publisher
- 대한기계학회
- Keywords
- Drop Impact Test; Shock Absorption Performance; Shock Absorption Efficiency; Shear Modulus; Rubber; 낙하충격실험; 충격흡수성능; 충격흡수효율; 전단계수; 고무
- Citation
- 대한기계학회논문집 A, v.33, no.4, pp.321 - 328
- Indexed
- SCOPUS
KCI
- Journal Title
- 대한기계학회논문집 A
- Volume
- 33
- Number
- 4
- Start Page
- 321
- End Page
- 328
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/176937
- DOI
- 10.3795/KSME-A.2009.33.4.321
- ISSN
- 1226-4873
- Abstract
- Shock absorption performances of various rubbers were investigated by using drop impact test. Several types of rubber such as NR, NBR, EPDM, SR and PUR with three respective levels of shore hardness were used for the test. As in the cases, the absorbed impact energies in rubbers were measured under seven different loads against impact energy between 5-80J. The impact absorption efficiencies of the rubbers then were evaluated by means of both single impact energy condition and summation of all impact energy applied condition. As shown in the results, PUR and EPDM have better shock absorption performances than other rubbers. Further analysis was extended to determine a shear modulus of SR through the finite element implementation with Blatz-Ko model. As can be seen, relatively higher level of absorption energy results in a decreasing shear modulus.
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