89 citations · 240 across the 9 of their papers we have counts for
10 papers
Non-Speckle-based DVC for Measuring Large Deformations in Homogeneous Solids using Laboratory X-ray CT
Zifan Wang, Akshay Joshi, Angkur Jyoti Dipanka Shaikeea +1
X-ray computed tomography (XCT) has become a reliable metrology tool for measuring internal flaws and other microstructural features in engineering materials. However, tracking of…
Predicting deformation mechanisms in architected metamaterials using GNN
Padmeya Prashant Indurkar, Sri Karlapati, Angkur Jyoti Dipanka Shaikeea +1
The present paradigm in design and modelling of lattice architected mechanical metamaterials is mostly limited to traditional numerical methods like finite element analysis. Recent…
Mechanical metamaterials: does toughness characterize fracture?
Angkur Jyoti Dipanka Shaikeea, Huachen Cui, Mark R. O'Masta +3
Rapid progress in additive manufacturing methods has created a new class of ultralight and strong architected metamaterials that resemble periodic truss structures. The mechanical…
Chemo-mechanical model of a cell as a stochastic active gel
Vikram Deshpande, Antonio DeSimone, Robert McMeeking +1
While it is commonly observed that the shape dynamics of mammalian cells can undergo large random fluctuations, theoretical models aiming at capturing cell mechanics often focus on…
The influence of strut waviness on the tensile response of lattice materials
P. E. Seiler, K. Li, V. S. Deshpande +1
Recent advances in additive manufacturing methods make it possible, for the first time, to manufacture complex micro-architectured solids that achieve desired stress versus strain…
Regulation of notch sensitivity of lattice materials by strut topology
K. Li, P. E. Seiler, V. S. Deshpande +1
We propose a local reinforcement technique for lattices in the vicinity of a stress-raiser such as a notch, in order to elevate the macroscopic strength and ductility. A spatially…
Nanofibril-mediated Fracture Resistance of Bone
Ottman A. Tertuliano, Bryce W. Edwards, Lucas R. Meza +2
Natural hard composites like human bone possess a combination of strength and toughness that exceeds that of their constituents and of many engineered composites. This augmentation…
An assessment of the J-integral test for a metallic foam
H. C. Tankasala, T. Li, P. E. Seiler +2
An assessment is made of the J-integral test procedure for initial crack growth in an open-cell aluminium alloy foam by combining finite element (FE) simulations with experiment. I…
A versatile numerical approach for calculating the fracture toughness and R-curves of cellular materials
Meng-Ting Hsieh, Vikram S. Deshpande, Lorenzo Valdevit
We develop a numerical methodology for the calculation of mode-I R-curves of brittle and elastoplastic lattice materials, and unveil the impact of lattice topology, relative densit…
The role of plastic strain gradients in the crack growth resistance of metals
Emilio Martínez-Pañeda, Vikram S. Deshpande, Christian F. Niordson +1
Crack advance from short or long pre-cracks is predicted by the progressive failure of a cohesive zone in a strain gradient, elasto-plastic solid. The presence of strain gradients…