Abstract
Investigation of fracture mechanics problems with computational tools has always been a great challenge due to singularities present at the crack tip. FRAC3D is an effective finite element tool that benefits from enriched element methodology. The dynamic version of this code enables the analysis of structures with stationary cracks subjected to impact loading. Response of the components in these problems are highly influenced by stress wave propagation phenomenon. In this study, bimaterial interface cracking in an electronic packaging structure is analyzed considering transient behavior. Besides the complications associated with the finite element solution of such a problem, long computational times may also be an issue considering model sizes. Multiprocessing of finite element codes could save significant times if corresponding algorithms are restructured with parallel processing tools in an efficient form. Up to 75 % reductions in time for the given example were obtained by using newly implemented multiprocessing code.
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Acknowledgments
Contributions from Herman F. Nied (ME&M Department, Lehigh University) are greatly acknowledged. His support was valuable for this research.
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Murat Saribay is currently an Assistant Professor of Mechanical Engineering at Istanbul Bilgi University, Istanbul, Turkey. He received his B.S. degree in Mechanical Engineering from Bogazici University, Istanbul, Turkey in 2002. He then received his M.S. and Ph.D. degrees in 2005 and 2009, respectively, from Lehigh University, PA, US. During his career, he has been involved in multiple international projects in collaboration with industrial companies and universities. His research interests include computational mechanics, structural integrity, dynamic fracture mechanics, elastic-plastic fracture, wave propagation effects, welding, multiscale methods, and parallel processing.
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Saribay, M. Multiprocessing implementations for time-dependent fracture analysis of an electronic packaging structure. J Mech Sci Technol 37, 2831–2841 (2023). https://doi.org/10.1007/s12206-023-0510-x
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DOI: https://doi.org/10.1007/s12206-023-0510-x