Gradient foam core materials for sandwich structures: Preparation and characterisation

被引：20
作者：
Danielsson, M
Grenestedt, JL
机构：
[1] Divinycell Int AB, S-31222 Laholm, Sweden
[2] Royal Inst Technol, Dept Aeronaut, S-10044 Stockholm, Sweden
来源：
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 1998年 / 29卷 / 08期
关键词：
gradient core; layered core; sandwich structure; foam core; mechanical properties;
D O I：
10.1016/S1359-835X(97)00058-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A method of combining layers of different low density rigid foam core materials is presented. The core materials, interpenetrating polymer networks (IPNs) based on PVC and polyurea, are fused together in a precursor stage. It is shown that it is possible to join the different core materials, keeping their nominal density and maintaining an overlapping continuous cellular structure. It is also shown that it is possible to combine and utilise extreme specific material characteristics from the individual foam core materials in the composite core by choosing a proper design. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：981 / 988
页数：8
相关论文
共 21 条
  • [1] Allard J.F., 1993, Propagation of sound in porous media, DOI [10.1002/9780470747339, DOI 10.1002/9780470747339]
  • [2] Brekhovskikh L.M., 1980, Waves in Layered Media, V2nd ed.
  • [3] COLOMBES K, 1965, Patent No. 3200089
  • [4] COLOMBES K, 1966, Patent No. 3277028
  • [5] Danielsson M, 1996, CELL POLYM, V15, P417
  • [6] DANIELSSON M, 1995, P 3 INT C SANDW CONS
  • [7] DANIELSSON M, 1996, COMPOSITES N, V14, P139
  • [8] *DIV INT AB, 1991, DIV H GRAD TECHN MAN
  • [9] *DIV INT AB, 1992, DIV HT GRAD TECHN MA
  • [10] GILCHRIST A, 1995, CELLULAR POLYM
123