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EFFECT OF RESIDUAL STRESS ON IMPACT DAMAGE IN A DISSIMILAR LAMINATED PLATE AT A BIAXIAL BENDING MODE
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  • EFFECT OF RESIDUAL STRESS ON IMPACT DAMAGE IN A DISSIMILAR LAMINATED PLATE AT A BIAXIAL BENDING MODE
  • EFFECT OF RESIDUAL STRESS ON IMPACT DAMAGE IN A DISSIMILAR LAMINATED PLATE AT A BIAXIAL BENDING MODE
저자명
Oh. S.Y.
간행물명
International journal of automotive technology
권/호정보
2008년|9권 3호|pp.347-352 (6 pages)
발행정보
한국자동차공학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

Systematic investigations have been performed on the mechanisms that lead to impact damage in a dissimilar laminated plate with a thermal residual stress at a biaxial bending mode. Glass/polymer laminated plates are often used as blast-proof safety screens, and bullet-proof windows, and in windshields in the automotive and the aerospace and aeronautical fields. Their many advantages, the development of new materials, and the need for high-performance, low-weight structures ensure that laminated plate construction will continue to be in demand. In this work, the impact damage in glass/Al alloy laminated circular plates cured at RT and $80^{circ}C$ was investigated using an instrumented long bar impact tester at a biaxial bending mode. A circular plate was cured at different curing temperatures to form a thermally induced residual stress at the bonding interface. To improve the damage tolerance of laminated circular plates, various geometric (thickness ratio of the inner to outer layer) and material parameters are considered by determining their effects of maximizing impact absorbed energy. The measured impact force profiles and the impulse of the force explained the impact damage behaviors induced in the laminated circular plates. We show that a compressive residual stress could reduce the initiation of radial cracks and the impact damaged area of the laminated plate in the outer layer. Greater an inner layer thickness results in smaller a damaged area. A design guideline for effective dissimilar laminated plate construction is proposed.