Multistable structure and a method for making thereof
AssigneeCity University of Hong Kong
InventorsJian Lu, Xiaoqiao He, Shenghui Yi
Life of this patent
Estimating the term…
Abstract
A multistable structure including local portions arranged to undergo processing by at least one of the physical treatment and chemical treatment so as to form localized stimulations of the treated portions; wherein the treated portions are arranged to interact with the untreated portion of the structure to form a prescribed residual stress distribution associated with the treated portions and the untreated portion of the structure, the prescribed residual stress distribution being arranged to provide at least one alternative stable configuration to the structure.
Claims22
A multistable structure comprising:
- local portions arranged to undergo processing by at least one of a physical treatment and chemical treatment so as to form localized stimulation of the treated portions;
- wherein the treated portions are arranged to interact with the untreated portion of the structure to form a prescribed residual stress distribution associated with the treated portions and the untreated portion of the structure, the prescribed residual stress distribution being arranged to provide at least one alternative stable configuration to the structure;
- and
- wherein the treated portion becomes a nanostructured portion.
A multistable structure comprising:
- local portions arranged to undergo processing by at least one of a physical treatment and chemical treatment so as to form localized stimulation of the treated portions;
- wherein the treated portions are arranged to interact with the untreated portion of the structure to form a prescribed residual stress distribution associated with the treated portions and the untreated portion of the structure, the prescribed residual stress distribution being arranged to provide at least one alternative stable configuration to the structure;
- and
- wherein the stimulation is an accumulation of in-plane uniform and transversely gradient plastic deformation in the treated portion.
A multistable structure comprising:
- local portions arranged to undergo processing by at least one of a physical treatment and chemical treatment so as to form localized stimulation of the treated portions;
- wherein the treated portions are arranged to interact with the untreated portion of the structure to form a prescribed residual stress distribution associated with the treated portions and the untreated portion of the structure, the prescribed residual stress distribution being arranged to provide at least one alternative stable configuration to the structure;
- and
- wherein the optimal stability of the structure has a treated portion to structure ratio of 25%-53%.
Dependencies are inferred from the claim text.