【摘要】 泡沫夹层复合材料作为一种新型轻质高强材料,目前越来越受到航天、航海及能源等领域的重视,但其应用大部分仍局限于次级结构,主要是由于其可靠性评价未得到广泛深入研究。概述了其吸水性能、吸水后静态和动态力学性能及断裂韧性变化规律,最后提出了防水措施。更多还原

【Abstract】 As a new load carrying efficient material,foam core sandwich composite has gained more and more attention in aerospace,marine and energy fields.However,most sandwich composites have been limited to secondary structures,because the reliability has not been widely investigated.The water uptake,static and dynamic mechanical properties and fracture toughness after water immersion are reviewed.Finally,a water-proof method is proposed.更多还原