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RISStephen P. Timoshenko Medal Acceptance Speech
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Presented at the ASME Applied Mechanics Division Banquet, IMECE’19, Salt Lake City, UT, Nov. 12, 2019.The Timoshenko Medal was established by ASME in 1957 to recognize the enormous and distinguished works and legacy of ...
Thermodynamically Consistent Variational Approach for Modeling Brittle Fracture in Thick Plates by a Hybrid Phase Field Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this work, we propose a thermodynamically consistent phase-field model for the brittle fracture analysis of thick plates. A hybrid model, which is fast and accurate, is proposed for the phase-field modeling of fracture ...
Effective Higher-Order Time Integration Algorithms for the Analysis of Linear Structural Dynamics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: For the development of a new family of higher-order time integration algorithms for structural dynamics problems, the displacement vector is approximated over a typical time interval using the pth-degree Hermite interpolation ...
A New Family of Higher-Order Time Integration Algorithms for the Analysis of Structural Dynamics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: For the development of a new family of implicit higher-order time integration algorithms, mixed formulations that include three time-dependent variables (i.e., the displacement, velocity, and acceleration vectors) are ...
Material Model for Creep-Assisted Microcracking Applied to S2 Sea Ice
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A material model is presented that includes the following deformation mechanisms: the instantaneous response of ice due to distortion of crystal lattices, creep, the formation of microcrack nuclei due to creep, the formation ...
A Nonlinear Finite Element Framework for Viscoelastic Beams Based on the High Order Reddy Beam Theory
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A weak form Galerkin finite element model for the nonlinear quasistatic and fully transient analysis of initially straight viscoelastic beams is developed using the kinematic assumptions of the thirdorder Reddy beam theory. ...
Green’s Functions for Infinite and Semi-infinite Anisotropic Thin Plates
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents fundamental solutions of an anisotropic elastic thin plate within the context of the Kirchhoff theory. The plate material is inhomogeneous in the thickness direction. Two systems of problems with ...
An Overview of Theories of Continuum Mechanics With Nonlocal Elastic Response and a General Framework for Conservative and Dissipative Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The aim of this review is to classify and provide a summary of the most widely used theories of continuum mechanics with nonlocal elastic response ranging from generalized continua to peridynamics showing, in broad outlines, ...
A Geometrically Inspired Model for Brittle Damage in Compressible Elastomers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Regularized continuum damage models such as those based on an order parameter (phase field) have been extensively used to characterize brittle damage of compressible elastomers. However, the prescription of the surface ...
Topology Optimization of Lightweight Structures With Application to Bone Scaffolds and 3D Printed Shoes for Diabetics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An automatic complex topology lightweight structure generation method (ACTLSGM) is presented to automatically generate 3D models of lightweight truss structures with a boundary surface of any shape. The core idea of the ...