Mechanical properties of materials are usually measured by simple one-dimensional tests. The growing field of data-driven mechanics requires development of experimental methods to obtain large quantities of multi-axial data from a single test. To complement this data is the requirement to develop computational methods that can deal with the inevitable measurement noise.
Mechanical properties of materials are usually measured by simple one-dimensional tests. The growing field of data-driven mechanics requires development of experimental methods to obtain large quantities of multi-axial data from a single test. To complement this data is the requirement to develop computational methods that can deal with the inevitable measurement noise.
I am using Johnson-Cook material model to simulate foam response, but am confused about which stress rate definition the material model uses. The manual mentions that Abaqus/Explicit uses Green-Naghdi stress rate for viscoelastic materials, but the Johnson-Cook model definition shows viscoplastic behavior, while the elasticity limi depends on the strain rate. Thus I am confuesd if Abaqus/Explicit uses Jaumann or Green-Naghdi stress rate for Johnson-Cook material model. Can someone please guide me,
I am using Johnson-Cook material model to simulate foam response, but am confused about which stress rate definition the material model uses. The manual mentions that Abaqus/Explicit uses Green-Naghdi stress rate for viscoelastic materials, but the Johnson-Cook model definition shows viscoplastic behavior, while the elasticity limi depends on the strain rate. Thus I am confuesd if Abaqus/Explicit uses Jaumann or Green-Naghdi stress rate for Johnson-Cook material model. Can someone please guide me,
The contact between a rigid Hertzian indenter and an adhesive broad-band viscoelastic substrate is considered. The material behavior is described by a modified power law model, which is characterized by only four parameters, the glassy and rubbery elastic moduli, a characteristic exponent n and a timescale tau0.
The Kang Group for Bioinspired Extreme Materials is looking for outstanding candidates to join the group. We have openings as below. Due to the large volume of applications received, we will contact only those selected for interviews. Thank you for your understanding.
Postdoctoral Fellow
One postdoctoral fellow position is available in the area of bioinspired materials with focus on experimental aspects.
The Department of Mechanical and Production Engineering (MPE) at Aarhus University is expanding its research and teaching activities in the field of “Renewable Energy Technologies” and invites applications for two Tenure-track Assistant / Associate Professor positions within the Section of “Fluids and Energy”.
The Department of Mechanical and Production Engineering (MPE) at Aarhus University is expanding its research and teaching activities in the field of “CO2 capture or conversion” and invites applications for Tenure-track Assistant / Associate Professor position within the Section of “Fluids and Energy”.
The Computational Mechanics and Methods (CM3) Group in the Department of Mechanical and Aerospace Engineering at the University of Kentucky is seeking highly self-motivated individuals who have great interest in the broad research areas of computational solid mechanics and methods, beginning either Spring 2025 or Fall 2025. Interested individuals should send a detailed CV and official transcripts to Dr.
