title: Understanding compressive deformation behavior of porous Ti using finite element analysis.
abstract: In the present study, porous commercially pure (CP) Ti samples with different volume fraction of porosities were fabricated using a commercial additive manufacturing technique namely laser engineered net shaping (LENS™). Mechanical behavior of solid and porous samples was evaluated at room temperature under quasi-static compressive loading. Fracture surfaces of the failed samples were analyzed to determine the failure modes. Finite Element (FE) analysis using representative volume element (RVE) model and micro-computed tomography (CT) based model have been performed to understand the deformation behavior of laser deposited solid and porous CP-Ti samples. In vitro cell culture on laser processed porous CP-Ti surfaces showed normal cell proliferation with time, and confirmed non-toxic nature of these samples.
authors.affiliation: Department of Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science and Technology, Shibpur, India.
authors.forename: Sandipan
authors.initials: S
authors.lastname: Roy
authors.affiliation: Department of Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science and Technology, Shibpur, India.
authors.forename: Niloy
authors.initials: N
authors.lastname: Khutia
authors.affiliation: Department of Metallurgy and Materials Engineering, Indian Institute of Engineering Science and Technology, Shibpur, India.
authors.forename: Debdulal
authors.initials: D
authors.lastname: Das
authors.affiliation: Bioceramics and Coating Division, CSIR-Central Glass and Ceramic Research Institute, Kolkata, India. Electronic address: mitun@cgcri.res.in.
authors.forename: Mitun
authors.initials: M
authors.lastname: Das
authors.affiliation: Bioceramics and Coating Division, CSIR-Central Glass and Ceramic Research Institute, Kolkata, India.
authors.forename: Vamsi Krishna
authors.initials: VK
authors.lastname: Balla
authors.affiliation: W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA.
authors.forename: Amit
authors.initials: A
authors.lastname: Bandyopadhyay
authors.affiliation: Department of Aerospace Engineering and Applied Mechanics, Indian Institute of Engineering Science and Technology, Shibpur, India. Electronic address: arcbesu@gmail.com.
authors.forename: Amit Roy
authors.initials: AR
authors.lastname: Chowdhury
mesh_terms: D002460:Cell Line; D049109:Cell Proliferation; D019245:Compressive Strength; D020342:Finite Element Analysis; D006801:Humans; D010006:Osteoblasts / Q000166:cytology / Q000378:metabolism*; D016062:Porosity; D014025:Titanium / Q000737:chemistry*; D055114:X-Ray Microtomography
chemical_list: D014025:Titanium
keywords: Biocompatibility; CP-Ti; Finite Element Analysis; LENS; Porous materials; Static loadings