Zobrazeno 1 - 10
of 43
pro vyhledávání: '"ASHLEY D. SPEAR"'
Autor:
Nadia Kouraytem, John Varga, Behnam Amin-Ahmadi, Hadi Mirmohammad, Raphaël A. Chanut, Ashley D. Spear, Owen T. Kingstedt
Publikováno v:
Materials & Design, Vol 198, Iss , Pp 109228- (2021)
The aim of the current study is to investigate the suitability of a solutionizing recrystallization (RC) heat-treatment to improve the yield strength of laser powder-bed fusion (L-PBF) Inconel 718 (IN718), while decreasing deformation anisotropy unde
Externí odkaz:
https://doaj.org/article/d9bc64fad7fe4c5bb85201817ac3501c
Publikováno v:
Data in Brief, Vol 16, Iss , Pp 601-603 (2018)
Three stochastic open-cell aluminum foam samples were incrementally compressed and imaged using X-ray Computed Tomography (CT). One of the samples was created using conventional investment casting methods and the other two were replicas of the same f
Externí odkaz:
https://doaj.org/article/4bb75470148845b8a682f55d81dc54af
Autor:
PRATHAMESH P. DESHPANDE, KAREN J. DEMILLE, AOWABIN RAHMAN, SUSANTA GHOSH, ASHLEY D. SPEAR, GREGORY M. ODEGARD
Publikováno v:
American Society for Composites 2022.
The matrix-reinforcement interface has been studied extensively to enhance the performance of polymer matrix composites (PMCs). One commonly practiced approach is functionalization of the reinforcement, which significantly improves the interfacial in
Publikováno v:
Integrating Materials and Manufacturing Innovation. 10:157-176
The efficacy of an elasto-viscoplastic fast Fourier transform (EVPFFT) code was assessed based on blind predictions of micromechanical fields in a sample of Inconel 625 produced with additive manufacturing (AM) and experimentally characterized with h
Publikováno v:
Carbon. 174:605-616
Carbon fiber reinforced composites are finding increased usage in a wide variety of applications, ranging from aerospace to energy harvesting to sporting goods and more. Carbon fiber manufacturing is an extremely time- and cost-intensive process with
Publikováno v:
International Journal of Fracture. 225:47-67
Porosity, a commonly occurring void defect in casting and additive manufacturing, is known to affect the mechanical response of metals, making it difficult or impossible to predict response variability. We introduce a new method of uniquely character
Publikováno v:
Biomechanics and Modeling in Mechanobiology. 19:1595-1605
Infant skull fractures are common in both accidental and abusive head trauma, but identifying the cause of injury may be challenging without adequate evidence. To better understand the mechanics of infant skull fracture and identify environmental var
Autor:
Ahmed Mostafa, Joseph E. Bishop, Michael K. Neilsen, Rémi Dingreville, Matthew Parno, Steven Cooreman, Kurtis R. Ford, Spencer Grange, Hari Simha, Babak Ravaji, Brett Davis, Keunhwan Pack, Aida Nonn, Bradley Salzbrenner, Kyle N. Karlson, Jeremy Stein, Ashley D. Spear, Steffen Brinckmann, Mark Gesing, Sharlotte Kramer, Christian C. Roth, John L. Bignell, Lindsay Gilkey, Christopher I. Hammetter, Thomas Tancogne-Dejean, Philippe Thibaux, James C. Sobotka, V. Keim, Brad L. Boyce, J. Jackiewicz, Kyle Johnson, John T. Foster, Devin O. Connor, Scott Edward Sanborn, Amanda Jones, Thomas A. Ivanoff, Masoud Behzadinasab, Bruce W. Williams, Krishnaswamy Ravi-Chandar, Michael W. Czabaj, John M Emery, Judith Brown, John McFarland, Jakob T. Ostien, A. R. Cerrone, Nicoli M. Ames, Joseph C. Tucker, Maysam Gorji Bandpay, James W. Foulk, Christopher Andrew Jones, Baptiste Coudrillier, Pania Newell
Publikováno v:
International Journal of Fracture
The Sandia Fracture Challenges provide a forum for the mechanics community to assess its ability to predict ductile fracture through a blind, round-robin format where mechanicians are challenged to predict the deformation and failure of an arbitrary
Autor:
Eric Edelman, Stuart Childs, Clay Audd, Jonathan Tayler, Nathan Briggs, Dongfang Zhao, Renan Ichi, Megan Buelte, Kristoffer E. Matheson, Gregory A. Clark, Pania Newell, Eric Brodbine, Austin J. Smith, Ashley D. Spear, Caitlin M. Arndt, Karen J. DeMille, Edward J. Dorrian, Isaac Nelson, Peter J. Creveling, Christopher John Creveling, Jordan French, Faramarz Safazadeh, Michael W. Czabaj, Brian R. Phung
Publikováno v:
International Journal of Fracture. 218:171-194
Three computational methods for modeling fracture are compared in the context of a class’ participation in the Third Sandia Fracture Challenge (SFC3). The SFC3 was issued to assess blind predictions of ductile fracture in a complex specimen geometr
Autor:
Brian R. Phung, Ashley D. Spear
Publikováno v:
Engineering Fracture Mechanics. 209:404-422
A framework for the simulation of fully arbitrary three-dimensional crack growth in heterogeneous materials is proposed. The framework relies on iteratively updating a voxel-based representation of a heterogeneous material and crack surface. The voxe