Bistable Auxetic Mechanical Metamaterials
A. Rafsanjani and D. Pasini, Bistable Auxetic Mechanical Metamaterials Inspired by Ancient Geometric Motifs. Extreme Mechanics Letters 9, 291-296 (2016).
Ahmad Rafsanjani's blog
Snapping Mechanical Metamaterials under Tension
We present a monolithic mechanical metamaterial comprising a periodic arrangement of snapping units with tunable tensile behavior. Under tension, the metamaterial undergoes a large extension caused by sequential snap-through instabilities, and exhibits a pattern switch from an undeformed wavy-shape to a diamond configuration.
Expansion behavior of cellular solids
The expansion behavior of cellular materials is especially attractive for potential applications such as design and development of bio-inspired adaptive materials since most of biological materials have a cellular microstructure at least at one of their hierarchical levels. Wood, bone, bamboo, ice plant and honeybee combs are examples of such natural materials.
Writing User Subroutines with ABAQUS
Dear All,
I think that many students are looking for some tutorials about writing a UMAT in ABAQUS.
You can find a comprehensive tutorial for elastic problems.
This file contains:
• Motivation
• Steps Required in Writing a UMAT or VUMAT
• UMAT Interface
• Examples
Example 1: UMAT for Isotropic Isothermal Elasticity
Example 2: UMAT for Non-Isothermal Elasticity
Example 3: UMAT for Neo-Hookean Hyperelasticity
How to Model Moving Mass in ANSYS
I want to model moving mass on a simply supported beam in ANSYS but I can not reach to analytical results, I tried defining CPs and some other methods. I want to find a linear solution and I prefer do not enter in Nonlinear analysis.