Brian Simonds

Accurate keyhole instability prediction in metal additive manufacturing through machine learning-aided numerical simulation

February 20, 2025

Author(s)

Jiahui Zhang, Runbo Jiang, Kangming Li, Pengyu Chen, Xiao Shang, Zhiying Liu, Brian Simonds, Qianglong Wei, Hongze Wang, Jason Hattrick-Simpers, Tao Sun, Anthony Rollet, Yu Zou

A primary obstacle impeding the use of metal additive manufacturing technologies in fatigue-sensitive applications is the presence of porosity, primarily caused

Direct Realization of the Optical Watt from Planck's Constant

October 28, 2024

Author(s)

Brian Simonds, Kyle Rogers, Sven Schulze, David Newell, Gordon Shaw, Paul A. Williams

A primary force standard is implemented to directly realize Planck's constant to the optical Watt by means of radiation pressure at the kilowatt level. The high

Benchmark Study of Melt Pool and Keyhole Dynamics, Laser Absorption, and Porosity in Additive Manufacturing of Ti-6Al-4V

April 29, 2024

Author(s)

Arash Samaei, Joseph Leonor, zhengtao gan, Zhongsheng Sang, Xiaoyu Xie, Brian Simonds, Wing Kam Liu, Gregory Wagner

Metal 3D printing involves a multitude of operational and material parameters that exhibit intricate interdependencies, which pose challenges to real-time

Ability to simulate laser absorption and melt pool dynamics in solid aluminum: results and insights from the 2022 asynchronous AM-Bench challenge

February 1, 2024

Author(s)

Brian Simonds, Jack Tanner, Alexandra Artusio-Glimpse, Niranjan Parab, Cang Zhao, Tao Sun, Paul A. Williams

The 2022 Asynchronous AM-Bench challenge was designed to test the ability of simulations to accurately predict laser power absorption as well as various melt

Deep learning approaches for time-resolved laser absorptivity prediction

January 5, 2024

Author(s)

Runbo Jiang, John Smith, Yu-Tsen Yi, Tao Sun, Brian Simonds, Anthony D. Rollett

The quantification of the amount of absorbed light is essential for understanding laser-material interactions and melt pool dynamics in order to minimize

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Brian Simonds (Fed)

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