Growth of damage in additively manufactured metal-composite joints

P.N. Parkes, R. Butler, D.P. Almond

Research output: Contribution to conferencePaper

16 Citations (Scopus)

Abstract

The mechanical behaviour of a novel metallic-composite joining technology (HYPER) is investigated. Joints are strengthened with an array of pins built using additive layer manufacture. A new approach to pulse-echo ultrasonic evaluation was developed for this application in order to allow damage within joints to be monitored. It was found that the orientation of the specimen is critical due to the potential for the pins to scatter the incident ultrasonic wave. Damage was progressively induced within a batch of single lap HYPER coupons through repeated tensile loadings. The inspection methodology was successful at capturing the propagation of damage. It was found that the interface between adherends achieved a complete disbond without observable laminate damage or pin fracture. All pins then failed in an catastrophic manner due to excessive shear stress at their bases. Limit load was 21% higher than the ultimate load of a comparable unpinned joint. The ultimate load of the HYPER coupons was 650% higher than the same unpinned benchmark joint.

Conference

Conference15th European Conference on Composite Materials: Composites at Venice, ECCM 2012
CountryItaly
CityVenice
Period24/06/1228/06/12

Fingerprint

Ultrasonic waves
Load limits
Joining
Laminates
Shear stress
Inspection
Ultrasonics
Composite materials
Metals

Cite this

Parkes, P. N., Butler, R., & Almond, D. P. (2012). Growth of damage in additively manufactured metal-composite joints. Paper presented at 15th European Conference on Composite Materials: Composites at Venice, ECCM 2012, Venice, Italy.

Growth of damage in additively manufactured metal-composite joints. / Parkes, P.N.; Butler, R.; Almond, D.P.

2012. Paper presented at 15th European Conference on Composite Materials: Composites at Venice, ECCM 2012, Venice, Italy.

Research output: Contribution to conferencePaper

Parkes, PN, Butler, R & Almond, DP 2012, 'Growth of damage in additively manufactured metal-composite joints' Paper presented at 15th European Conference on Composite Materials: Composites at Venice, ECCM 2012, Venice, Italy, 24/06/12 - 28/06/12, .
Parkes PN, Butler R, Almond DP. Growth of damage in additively manufactured metal-composite joints. 2012. Paper presented at 15th European Conference on Composite Materials: Composites at Venice, ECCM 2012, Venice, Italy.
Parkes, P.N. ; Butler, R. ; Almond, D.P. / Growth of damage in additively manufactured metal-composite joints. Paper presented at 15th European Conference on Composite Materials: Composites at Venice, ECCM 2012, Venice, Italy.
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