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논문 국내 국제일반학술지 An Experimental Investigation on Low-Velocity Impact Responses of Sandwich Panels with Changes of Impact Location and the Wall Partition Angle of Honeycomb Core
- 학술지 구분 국제일반학술지
- 게재년월 2012-10
- 저자명 Kwang-Woo Jeon, Kwang-Bok Shin
- 학술지명 International Journal of Precision Engineering and Manufacturing
- 발행처명 한국정밀공학회
- 발행국가 국내
- 논문언어 외국어
- 전체저자수 2
- 논문 다운로드 링크(외부) https://www.kci.go.kr/kciportal/ci/sereArticleSearch/ciSereArtiView.kci?sereArticleSearchBean.artiId=ART001701701
- 연구분야 공학 > 기계공학
논문 초록 (Abstract)
This paper describes an experimental investigation on low-velocity impact responses and damage modes of sandwich composites due to the changes of impact loading location and wall partition angle of honeycomb core. The sandwich panels were composed of a glass/epoxy laminated facesheet and an aluminum honeycomb core. Square samples of 100mm by 100mm sides were subjected to a low-velocity impact load using an instrumented testing machine at three different energy levels. Impact parameters such as maximum force, time to maximum force, deflection at maximum force, and absorbed energy were evaluated and compared. Sandwich specimens were cut to analyze damage modes after impact. The experimental results showed that low-velocity impact responses and damage mechanism of sandwich panels were affected significantly by the changes of wall partition angle of honeycomb core, and the energy absorption capacity of sandwich panels with wall partition angle of 45o was improved by about 25%.
