Coupled analysis of low-velocity impact damage and compression after impact strength of composite laminates

No Thumbnail Available
Authors
Borkowski, Luke B.
Kumar, Rajesh S.Dinesh
Palliyaguru, Upul R.
Advisors
Issue Date
2021-09
Type
Article
Keywords
Compressive strength , Laminated composites , Transient analysis
Research Projects
Organizational Units
Journal Issue
Citation
Borkowski, L. B., Kumar, R. S., & Palliyaguru, U. R. (2021). Coupled analysis of low-velocity impact damage and compression after impact strength of composite laminates. Journal of Aerospace Engineering, 34(5) doi:10.1061/(ASCE)AS.1943-5525.0001281
Abstract

A coupled analysis of impact damage and compression-after-impact (CAI) strength of laminated composite plates was conducted using efficient analytical and semianalytical models with the goal of demonstrating and validating the overall coupled impact/CAI strength model. Within this coupled framework, the impact model determines the transient response of the plate subjected to low-velocity impact, followed by an estimation of impact damage using a combination of strength and energy-based criteria. The predicted impact damage is idealized and used in conjunction with analytical buckling and postbuckling or kink-band analysis to predict the residual compressive strength. The coupled analysis approach was validated by applying it to impact and compression-after-impact experiments conducted on AS4/8552 laminates. It was shown that the coupled analysis model is able to predict accurately the compression-after-impact strength for a range of impact scenarios and material layups in a fraction of the time required by detailed finite-element models.

Table of Contents
Description
Click on the DOI link to access the article (may not be free).
Publisher
American Society of Civil Engineers
Journal
Book Title
Series
Journal of Aerospace Engineering;Vol.34, Iss. 5
PubMed ID
DOI
ISSN
0893-1321
1943-5525
EISSN