Damage Detection in Laminated Composite Beams

Author(s):

Reuben Philip , SAINTGITS COLLEGE OF ENGINEERING; Lerin T Punnoose, SAINTGITS COLLEGE OF ENGINEERING; Sebin Mathew Simon, SAINTGITS COLLEGE OF ENGINEERING; Mathew Tharayil Thomas, SAINTGITS COLLEGE OF ENGINEERING; Parvathy Venugopal, SAINTGITS COLLEGE OF ENGINEERING

Keywords:

Natural frequency, delamination, laminates

Abstract:

Delamination is a mode of failure that occurs in laminated composite materials. In laminates repeated cyclic stresses and impact causes layers to separate, forming a mica like structures of separate layers and significant loss in toughness. Delamination mainly occurs due to weak adhesive bonding between fibre and polymer matrix. Laminates are used in aircraft and space shuttles and thus delamination in such case leads to catastrophe. When a delamination occurs there will be a change in natural frequency of the material. The change in natural frequency is used to locate the position of delamination. Natural frequencies of normal and delaminated composites are experimentally obtained by an accelerometer. It is then determined numerically by using ABAQUS 6.14 software.

Other Details:

Manuscript Id	:	IJSTEV3I10125
Published in	:	Volume : 3, Issue : 10
Publication Date	:	01/05/2017
Page(s)	:	255-259

Download Article