Experimental Characterisation of Thin Sandwich Panel of Polymer Composite

Advanced Composites Letters

Article

Prashant Kumar¹  J. Ramkumar¹  Kamal K. Kar¹  Axay Kumar² 

[1] Department of Mechanical Engineering, IIT Kanpur 208 016, India;ISRO Satellite Centre, Bangalore 560 017, India;

关键词: Sandwich structure;    chopped strand mat;    impact induced damage;    polymer composite;    flexural stiffness;   

DOI  :  10.1177/096369350601500303

来源: Sage Journals

【 摘 要 】

A thin sandwich panel using 3 mm coremat and FRP skins of glassfibre chopped strand mat – epoxy was constructed through the hand lay-up technique. This kind of sandwich structure might replace a mild steel sheet enclosure used in many appliances and machines including auto bodies. The sandwich panels were characterized with three kinds of experimental investigation to find (i) flexural stiffness (ii) in-plane shear strength and (iii) impact-induced-damage by a low velocity foreign object. In comparison to mild steel, the sandwich panels were lighter with considerable saving in weight, the static strength was found to be attractively higher, flexural stiffness was better, and in-plane strength was reasonable. The impact-induced-damage and their mechanism of failure of these sandwich panels is also studied.

【 授权许可】

Unknown   
© 2006 SAGE Publications Ltd

【 图 表 】

Figure 3

Figure 3.

Figure 2

Figure 1

Figure 3.

Figure 3.

Figure 6.

Fig. 1