Mechanical Properties of the Cured Laminates on the Hot-press Tackified Preforms in Vacuum Assisted Resin Transfer Molding  

作　　者：王长春 叶金蕊 YUE Guangquan BAI Guanghui LIU Ling ZHANG Boming 

机构地区：[1]School of Materials Science and Engineering, Beihang University, Beijing 100191, China [2]Association for Science and Technology of Beihang University, Beijing 100191, China [3]Beijing Key Laboratory of Civil Aircraft Structures and Composite Materials, Beijing Aeronautical Science & Technology Research Institute of COMAC, Beijing 102209, China [4]Science and Technology on Space Physics Laboratory, Beijing Institute Nearspace Vehicle's System Engineering, Beijing 100076, China [5]School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2018年第1期242-248,共7页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the National Engineering and Research Center for Commercial Aircraft Manufacturing(No.SAMC 13-JS-15-034)

摘　　要：A hot-press tackified preform was used to improve the uniformity of the laminates thickness and the mechanical properties of the obtained laminates were studied using vacuum assisted resin transfer molding（VARTM）. Two modified preforms were prepared under 0.1 and 0.6 MPa in an autoclave and then were used to fabricate the laminates via VARTM. Permeability and thickness distribution of the laminates were obtained by using a special device. Moreover, the tensile and compressive strengths of the obtained laminates were studied and compared with the unmodified ones. Results show that the tackified laminates present a maximum and minimum thickness under 0.1 and 0.6 MPa, respectively. The thicknesses and in-plane permeability of the tackified laminates, with better thickness uniformity, are significantly decreased compared with that of the unmodified cases, while the tensile and compressive strengths of the tackified laminates are improved obviously. Results show that the mechanical property of the tackified laminates prepared by hotpressing at 0.1 MPa is better than that processed at 0.6 MPa.A hot-press tackified preform was used to improve the uniformity of the laminates thickness and the mechanical properties of the obtained laminates were studied using vacuum assisted resin transfer molding（VARTM）. Two modified preforms were prepared under 0.1 and 0.6 MPa in an autoclave and then were used to fabricate the laminates via VARTM. Permeability and thickness distribution of the laminates were obtained by using a special device. Moreover, the tensile and compressive strengths of the obtained laminates were studied and compared with the unmodified ones. Results show that the tackified laminates present a maximum and minimum thickness under 0.1 and 0.6 MPa, respectively. The thicknesses and in-plane permeability of the tackified laminates, with better thickness uniformity, are significantly decreased compared with that of the unmodified cases, while the tensile and compressive strengths of the tackified laminates are improved obviously. Results show that the mechanical property of the tackified laminates prepared by hotpressing at 0.1 MPa is better than that processed at 0.6 MPa.

关 键 词：hot-press tackified preforms thickness uniformity mechanical property PERMEABILITY VARTM 

分 类 号：TB332[一般工业技术—材料科学与工程]