Rotational 3D printing of damage-tolerant composites with programmable mechanics
Abstract
Natural composites exhibit hierarchical and spatially varying structural features that give rise to high stiffness and strength as well as damage tolerance. Here, we report a rotational 3D printing method that enables exquisite control of fiber orientation within engineered composites. Our approach broadens their design, microstructural complexity, and performance space by enabling site-specific optimization of fiber arrangements within short carbon fiber–epoxy composites. Using this approach, we have created composites with programmable strain distribution and failure as well as enhanced damage tolerance.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 18, 2018
- Source ID
- 10.1073/pnas.1715157115
Entities
People
- Brett G. Compton
- Jennifer A. Lewis
- Jochen Mueller
- Jordan R. Raney
- Kristina Shea
- Thomas J. Ober
Organizations
- ETH Zurich
- Harvard University
- Office of Naval Research
- University of Pennsylvania
- University of Tennessee