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Proceedings Papers

Inhomogeneous Microstructure due to Non-Uniform Solidification Rate in NiTi Triply Periodic Minimal Surface (TPMS) Structures Fabricated via Laser Powder Bed Fusion

Shahadat Hussain, Ali N. Alagha, Wael Zaki
Proc. ASME. IMECE2022, Volume 3: Advanced Materials: Design, Processing, Characterization and Applications; Advances in Aerospace Technology, V003T03A003, October 30–November 3, 2022
Paper No: IMECE2022-95320
https://doi.org/10.1115/IMECE2022-95320
View Paper titled, Inhomogeneous Microstructure due to Non-Uniform Solidification Rate in NiTi Triply Periodic Minimal Surface (TPMS) Structures Fabricated via Laser Powder Bed Fusion
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Topics: Additive manufacturing, Lasers, Nickel titanium alloys, Solidification
Journal Articles

Fatigue of Shape Memory Alloys With Emphasis on Additively Manufactured NiTi Components

Adriano Cebrian Carcavilla, Wael Zaki
Journal: Applied Mechanics Reviews
Article Type: Review Articles
Appl. Mech. Rev. July 2022, 74(4): 040801.
Paper No: AMR-22-1022
https://doi.org/10.1115/1.4055175
Published Online: September 12, 2022
View Article titled, Fatigue of Shape Memory Alloys With Emphasis on Additively Manufactured NiTi Components
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Topics: Additive manufacturing, Fatigue, Nickel titanium alloys, Shape memory alloys, Temperature, Stress, Fatigue life, Fracture (Materials)
Proceedings Papers

Derivation of Loading Surfaces for a Nitinol Triply Periodic Minimal Surface Unit Cell Subjected to Cyclic Loading

Adriano Cebrián Carcavilla, Wael Zaki
Proc. ASME. IMECE2021, Volume 12: Mechanics of Solids, Structures, and Fluids; Micro- and Nano- Systems Engineering and Packaging, V012T12A035, November 1–5, 2021
Paper No: IMECE2021-71534
https://doi.org/10.1115/IMECE2021-71534
View Paper titled, Derivation of Loading Surfaces for a Nitinol Triply Periodic Minimal Surface Unit Cell Subjected to Cyclic Loading
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Topics: Fatigue, Nickel titanium alloys, Stress, Boundary-value problems, Constitutive equations, Cycles, Deformation, Displacement, Heat, Phase transitions
Proceedings Papers

Effective Initial and Subsequent Loading Surfaces for Phase Transformation in TPMS-SMAs

Ali N. Alagha, Nguyen Van Viet, Wael Zaki
Proc. ASME. SMASIS2021, ASME 2021 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T07A011, September 14–15, 2021
Paper No: SMASIS2021-68269
https://doi.org/10.1115/SMASIS2021-68269
View Paper titled, Effective Initial and Subsequent Loading Surfaces for Phase Transformation in TPMS-SMAs
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Topics: Phase transitions, Shape memory alloys, Anisotropy, Diamonds, Finite element analysis, Geometry, Hardening, Shapes
Proceedings Papers

A Phenomenological Model for Shape Memory Alloys With Uniformly Distributed Porosity

Wael Zaki, N. V. Viet
Proc. ASME. SMASIS2020, ASME 2020 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T03A013, September 15, 2020
Paper No: SMASIS2020-2396
https://doi.org/10.1115/SMASIS2020-2396
View Paper titled, A Phenomenological Model for Shape Memory Alloys With Uniformly Distributed Porosity
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Topics: Porosity, Porous materials, Shape memory alloys
Proceedings Papers

Analytical Model of Shape Memory Alloy Helical Springs

Wael Zaki, N. V. Viet
Proc. ASME. SMASIS2018, Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation, and Control of Adaptive Systems; Integrated System Design and Implementation, V001T03A015, September 10–12, 2018
Paper No: SMASIS2018-8075
https://doi.org/10.1115/SMASIS2018-8075
View Paper titled, Analytical Model of Shape Memory Alloy Helical Springs
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Topics: Shape memory alloys, Springs, Constitutive equations, Deformation, Engineering systems and industry applications, Finite element analysis, Phase transitions
Proceedings Papers

Analytical Model for a Functionally Graded Material/Shape Memory Alloy Laminated Composite Cantilever Beam

Wael Zaki, N. V. Viet
Proc. ASME. SMASIS2018, Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation, and Control of Adaptive Systems; Integrated System Design and Implementation, V001T03A016, September 10–12, 2018
Paper No: SMASIS2018-8076
https://doi.org/10.1115/SMASIS2018-8076
View Paper titled, Analytical Model for a Functionally Graded Material/Shape Memory Alloy Laminated Composite Cantilever Beam
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Topics: Cantilever beams, Composite materials, Functionally graded materials, Shape memory alloys, Finite element analysis, Phase transitions, Young's modulus
Proceedings Papers

Modeling and Simulation of Architectured Iron-Based SMA Materials

Wael Zaki, Cheikh Cissé, Tarak Ben Zineb
Proc. ASME. SMASIS2017, Volume 2: Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation; Structural Health Monitoring, V002T03A010, September 18–20, 2017
Paper No: SMASIS2017-3759
https://doi.org/10.1115/SMASIS2017-3759
View Paper titled, Modeling and Simulation of Architectured Iron-Based SMA Materials
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Topics: Iron, Modeling, Simulation, Finite element analysis, Boundary-value problems, Bulk solids, Computation, Constitutive equations, Finite element model, Shape memory alloys
Proceedings Papers

Analytical Model for a Superelastic SMA Beam

N. V. Viet, Wael Zaki, Rehan Umer
Proc. ASME. SMASIS2017, Volume 2: Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation; Structural Health Monitoring, V002T03A011, September 18–20, 2017
Paper No: SMASIS2017-3763
https://doi.org/10.1115/SMASIS2017-3763
View Paper titled, Analytical Model for a Superelastic SMA Beam
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Topics: Cantilever beams, Deflection, Finite element analysis, Phase transitions, Shape memory alloys, Simulation results, Stress concentration
Proceedings Papers

High-Cycle Fatigue Criterion for Shape Memory Alloys Based on Shakedown Theory

Wael Zaki, Xiaojun Gu, Ziad Moumni, Weihong Zhang
Proc. ASME. SMASIS2016, Volume 2: Modeling, Simulation and Control; Bio-Inspired Smart Materials and Systems; Energy Harvesting, V002T03A015, September 28–30, 2016
Paper No: SMASIS2016-9165
https://doi.org/10.1115/SMASIS2016-9165
View Paper titled, High-Cycle Fatigue Criterion for Shape Memory Alloys Based on Shakedown Theory
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Topics: High cycle fatigue, Shape memory alloys, Stress, Fatigue, Mesoscopic systems, Phase transitions, Constitutive equations, Cycles, Damage, Energy dissipation
Proceedings Papers

Implementation of the Large Time Increment Method for the Simulation of Pseudoelastic Shape Memory Alloys

Xiaojun Gu, Wael Zaki, Ziad Moumni, Weihong Zhang
Proc. ASME. SMASIS2015, Volume 1: Development and Characterization of Multifunctional Materials; Mechanics and Behavior of Active Materials; Modeling, Simulation and Control of Adaptive Systems, V001T03A015, September 21–23, 2015
Paper No: SMASIS2015-8923
https://doi.org/10.1115/SMASIS2015-8923
View Paper titled, Implementation of the Large Time Increment Method for the Simulation of Pseudoelastic Shape Memory Alloys
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Topics: Shape memory alloys, Simulation, Stress, Equilibrium (Physics), Algorithms, Phase transitions, Constitutive equations, Finite element analysis, Hardening, Simulation results
Proceedings Papers

A Model for Iron-Based Shape Memory Alloys Considering Variable Elastic Stiffness and Coupling Between Plasticity and Phase Transformation

Cheikh Cisse, Wael Zaki, Tarak Ben Zineb
Proc. ASME. SMASIS2015, Volume 1: Development and Characterization of Multifunctional Materials; Mechanics and Behavior of Active Materials; Modeling, Simulation and Control of Adaptive Systems, V001T03A012, September 21–23, 2015
Paper No: SMASIS2015-8875
https://doi.org/10.1115/SMASIS2015-8875
View Paper titled, A Model for Iron-Based Shape Memory Alloys Considering Variable Elastic Stiffness and Coupling Between Plasticity and Phase Transformation
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Topics: Iron, Phase transitions, Plasticity, Shape memory alloys, Stiffness, Hardening, Algorithms, Computer simulation, Constitutive equations, Nickel titanium alloys
Proceedings Papers

Time Integration and Assessment of a Model for Shape Memory Alloys Considering Multiaxial Nonproportional Loading Cases

Wael Zaki, Xiaojun Gu, Claire Morin, Ziad Moumni, Weihong Zhang
Proc. ASME. SMASIS2014, Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Structural Health Monitoring; Keynote Presentation, V001T03A024, September 8–10, 2014
Paper No: SMASIS2014-7599
https://doi.org/10.1115/SMASIS2014-7599
View Paper titled, Time Integration and Assessment of a Model for Shape Memory Alloys Considering Multiaxial Nonproportional Loading Cases
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Topics: Shape memory alloys, Algorithms, Engineering simulation, Simulation, Computer simulation, Finite element analysis, Phase transitions
Proceedings Papers

Steady State Crack Growth in Shape Memory Alloys

Selcuk Hazar, Wael Zaki, Ziad Moumni, Gunay Anlas
Proc. ASME. SMASIS2013, Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation, V001T03A018, September 16–18, 2013
Paper No: SMASIS2013-3071
https://doi.org/10.1115/SMASIS2013-3071
View Paper titled, Steady State Crack Growth in Shape Memory Alloys
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Topics: Fracture (Materials), Shape memory alloys, Steady state, Stress concentration, Algorithms, Constitutive equations, Deformation, Martensitic transformations, Nickel titanium alloys, Phase transitions
Proceedings Papers

Modeling and Simulation of the Mechanical Response of Martensitic Shape Memory Alloys

Wael Zaki
Proc. ASME. SMASIS2011, ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1, 189-193, September 18–21, 2011
Paper No: SMASIS2011-5178
https://doi.org/10.1115/SMASIS2011-5178
View Paper titled, Modeling and Simulation of the Mechanical Response of Martensitic Shape Memory Alloys
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Topics: Modeling, Shape memory alloys, Simulation, Deformation, Stress, Algorithms, Numerical analysis, Shapes, Stiffness, Tensors