LATERAL IMPACT OF SIMPLE SUPPORTED MULTI LAYERED COMPOSITE BEAMS

The dynamic response of a composite laminated beam made up of different materials may differ from that of a homogenous beam. The investigation reported compares experimental results of the strain behaviour of composite laminated beams under impact loads with theoretical predictions. The beams tested had three or five layers of alternately acryl resin and steel. It was found that at the point of impact the bending strain in the upper layer was very briefly higher than that expected from the normal distribution of strain in the cross section, but after a short time had elapsed it changed to that for the natural vibration of a beam. The finite strip method described the behaviour adequately throughout, but the classical and Timoshenko beam theories agreed only after natural vibration had become established.

• Supplemental Notes:
  • J. Soc. Materials Science (Japan) 34 (1985), p. 1375 (Dec.) [7 pp., 13 ref., 1 tab., 8 fig.]
• Authors:
  • Kishi, N
  • Matsukoa, K
  • Nomachi, S
• Publication Date: 1985

Language

• Japanese

Subject/Index Terms

• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00689192
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM