Simulation of the Transient Behavior of Matter with Characteristic Geometrical Variations &amp; Defects Irradiated by Nanosecond Laser Pulses Using FEA

Evaggelos Kaselouris; Emmanouil Skarvelakis; Ioannis K. Nikolos; Georgios E. Stavroulakis; Yannis Orphanos; M. Bakarezos; Nektarios A. Papadogiannis; Michael Tatarakis; Vasilios Dimitriou

doi:10.4028/www.scientific.net/KEM.665.157

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Simulation of the Transient Behavior of Matter with Characteristic Geometrical Variations & Defects Irradiated by Nanosecond Laser Pulses Using FEA
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 665Simulation of the Transient Behavior of Matter...

Simulation of the Transient Behavior of Matter with Characteristic Geometrical Variations & Defects Irradiated by Nanosecond Laser Pulses Using FEA

Abstract:

The thermomechanical transient response of matter illuminated by nanosecond laser pulses is modeled and simulated using the Finite Element Analysis (FEA). Matter’s behavior is numerically described by a three-dimensional (3D) multiphysics, coupled thermal structural, transient FEA, experimentally validated, model. FEA offers substantial insights into the materials’ micro-mechanical behaviour providing detailed information for the spatiotemporal evolution of acoustic waves. In this computational approach the impact of the geometric characteristics of the modeled metallic films to the generation and propagation of the ultrasonic waves, in relation to temperature, is investigated. The study is expanded to the dynamic reactions of matter in the presence of surface and solid volume defects and enclosures e.g.: gaps, holes or bubbles. The transient behavior of matter in the time and the space solution domains is obtained by the FEA model and presented.

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Periodical:

Key Engineering Materials (Volume 665)

Pages:

157-160

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.665.157

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Online since:

September 2015

Authors:

Evaggelos Kaselouris*, Emmanouil Skarvelakis, Ioannis K. Nikolos, Georgios E. Stavroulakis, Yannis Orphanos, M. Bakarezos, Nektarios A. Papadogiannis, Michael Tatarakis, Vasilios Dimitriou

Keywords:

Finite Elements, Laser-Matter Interactions, Matter Defects, Metallic Films

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