국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Study of Compression-Loaded and Impact-Damaged Structurally Efficient Graphite-Thermoplastic Trapezoidal-Corrugation Sandwich and Semisandwich Panel
저자	Dawn C. Jegley
Keyword	Graphite-thermoplastic; Corrugation; Thermoforming; Sandwich; Semisandwich; Structural efficiency
URL	http://techreports.larc.nasa.gov/ltrs/PDF/tp3264.pdf
보고서번호	NASA TP-3264
발행년도	1992
출처	NASA Langley Research Center
ABSTRACT	The structural efficiency of compression-loaded trapezoidal-corrugation sandwich and semisandwich composite panels is studied to determine their weight savings potential. Sandwich panels with two identical face sheets and a trapezoidal corrugated core between them and semisandwich panels with a corrugation attached to a single skin are considered. An optimization code is used to find the minimum weight designs for critical compressive load levels ranging from 3000 to 24thinspace 000 lb/in. Graphite-thermoplastic panels based on the optimal minimum weight designs were fabricated and tested. A finite-element analysis of several test specimens was also conducted. The results of the optimization study, the finite-element analysis, and the experiments are presented. The results of testing impact-damaged panels are also discussed.