- Advanced Materials and Mechanics
- Structural Analysis and Optimization
- Electrospun Nanofibers in Biomedical Applications
- Tissue Engineering and Regenerative Medicine
- Reconstructive Surgery and Microvascular Techniques
- Vehicle Noise and Vibration Control
- Liquid Crystal Research Advancements
- Cellular and Composite Structures
- Cellular Mechanics and Interactions
- Aerodynamics and Fluid Dynamics Research
- Bone Tissue Engineering Materials
- Advanced Sensor and Energy Harvesting Materials
- Tendon Structure and Treatment
- Aerodynamics and Acoustics in Jet Flows
University of Massachusetts Amherst
2019-2021
Zhengzhou University
2019-2020
Micron (United States)
2019
Jiangsu University
2012
Biomimetic structures play an important role in controlling the cell behaviors of adhesion, proliferation, migration, and differentiation, which is beneficial for regeneration defective tissues. Scaffolds with a biomimetic structure are highly desirable tissue engineering. In this study, we successfully fabricated three different types tubular scaffold randomly, circumferentially, axially aligned structures, using synthetic bioabsorbable poly(L-lactide-co-caprolactone) via electrospinning....
The suture retention strength of artificial vascular grafts is a key mechanical property that affects the function grafts. Different from conventional method testing strength, this study simulated actual suturing state scaffolds approximately and investigated effect graft type, wall thickness, number stitches on poly(l-lactide-co-ε-caprolactone) P(LLA-CL) results showed tissue-engineered have excellent performance and, when thickness greater than 0.24 mm, will meet transplantation standard....
Micro/nanofibers have been widely applied to mimic the fibrillary structure of collagen type I from a bionic point view, however, wavy fibers in biological tissues such as arteries and ligaments has hardly fabricated. In this study, universal method was developed fabricate crimped different biopolymers by controlling relaxation residual stress, allowing resulting scaffold stable nonlinear elasticity. The effects processing conditions pre-strain, temperature plasticizer, fixed contraction...
We demonstrate with experiments that wrinkling in stretched latex sheets occur over finite strains, and their amplitudes grow then decay to zero a greater range of applied strains compared linear elastic materials. The wrinkles provided the sheet is sufficiently thin its width, only length-to-width ratios. show simulations Mooney-Rivlin hyperelastic model describes observed growth our experiments. decrease wavelength tension found be consistent far-from-threshold scenario proposed by Cerda...
We address the fully-developed wrinkle pattern formed upon stretching a Hookean, rectangular-shaped sheet, when longitudinal tensile load induces transverse compression that far exceeds stability threshold of purely planar deformation. At this "far from threshold" parameter regime, which has been subject celebrated Cerda-Mahadevan (CM) model, expands throughout length sheet and characteristic wavelength undulations is much smaller than its width. Employing Surface Evolver simulations over...
The wrinkle pattern exhibited upon stretching a rectangular sheet has attracted considerable interest in the "extreme mechanics" community. Nevertheless, key aspects of this notable phenomenon remain elusive. Specifically -- what is origin compressive stress underlying instability planar state? nature ensuing bifurcation? how does shape evolve from critical, near-threshold regime to fully-developed parallel wrinkles that permeate most sheet? In paper we address some these questions through...