Experimental investigations on thermo mechanical behaviour of aluminium alloys subjected to tensile loading and laser irradiation

Mohsan Jelani; Zewen Li; Zhonghua Shen; Maryam Sardar; Aasma Tabassum

doi:10.1117/12.2267781

12 May 2017 Experimental investigations on thermo mechanical behaviour of aluminium alloys subjected to tensile loading and laser irradiation

Mohsan Jelani, Zewen Li, Zhonghua Shen, Maryam Sardar, Aasma Tabassum

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Proceedings Volume 10173, Fourth International Symposium on Laser Interaction with Matter; 101730E (2017) https://doi.org/10.1117/12.2267781
Event: 4th International Symposium on Laser Interaction with Matter, 2016, Chengdu, China

Abstract

The present work reports the investigation of the thermal and mechanical behaviour of aluminium alloys under the combined action of tensile loading and laser irradiations. The two types of aluminium alloys (Al-1060 and Al-6061) are used for the experiments. The continuous wave Ytterbium fibre laser (wavelength 1080 nm) was employed as irradiation source, while tensile loading was provided by tensile testing machine. The effects of various pre-loading and laser power densities on the failure time, temperature distribution and on deformation behaviour of aluminium alloys are analysed. The experimental results represents the significant reduction in failure time and temperature for higher laser powers and for high load values, which implies that preloading may contribute a significant role in the failure of the material at elevated temperature. The reason and characterization of material failure by tensile and laser loading are explored in detail. A comparative behaviour of under tested materials is also investigated. This work suggests that, studies considering only combined loading are not enough to fully understand the mechanical behaviour of under tested materials. For complete characterization, one must consider the effect of heating as well as loading rate.

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Mohsan Jelani, Zewen Li, Zhonghua Shen, Maryam Sardar, and Aasma Tabassum "Experimental investigations on thermo mechanical behaviour of aluminium alloys subjected to tensile loading and laser irradiation", Proc. SPIE 10173, Fourth International Symposium on Laser Interaction with Matter, 101730E (12 May 2017); https://doi.org/10.1117/12.2267781

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KEYWORDS

Aluminum

Failure analysis

Laser irradiation

Continuous wave operation

Aerospace engineering

Thermal effects

Ytterbium

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