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Pore ​​structure with repeating pattern of elongated pores

A technology of pore structure, elongated holes, applied to components of pumping devices for elastic fluids, manufacturing tools, lighting and heating equipment, etc.

Active Publication Date: 2019-05-31
PRESIDENT & FELLOWS OF HARVARD COLLEGE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As such, the manufacturing process has become a bottleneck in the actual development process towards the application

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  • Pore ​​structure with repeating pattern of elongated pores
  • Pore ​​structure with repeating pattern of elongated pores
  • Pore ​​structure with repeating pattern of elongated pores

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Embodiment Construction

[0017] The present invention is susceptible to many different forms of embodiment. which are shown in the drawings and will be described herein in terms of detailed representative embodiments of the invention, it is to be understood that this disclosure is to be considered as an illustration of the principles of the invention and is not intended to The broad aspects of the invention are limited to the illustrated embodiments. To the extent, for example, elements and limitations disclosed in the Abstract, Summary, and Detailed Description sections, but not expressly set forth in the claims, should not be taken by implication, inference, or otherwise and included in the claims. Unless expressly excluded, for the purposes of the present elaboration: the singular includes the plural and vice versa; the words "and" and "or" shall be both conjunctive and disjunctive; the word "all" means "any / any and all ”; the phrase “any / any” means “any / any and all”; and the phrase “including / co...

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Abstract

Disclosed herein are porous structures, systems and devices having porous structures, and methods of making porous structures. Pore ​​structures are disclosed with a repeating pattern of elongated pores designed to provide negative Poisson's ratio behavior under macroscopic stress and strain loading. The pattern may comprise horizontal and vertical oval holes arranged in horizontal and vertical lines spaced at equal distances in both dimensions. The center of each hole is located at the intersection of the two lines. Vertical elliptical holes and horizontal elliptical holes alternate on horizontal and vertical lines, so that any vertical hole is surrounded by a horizontal hole along the line (and vice versa), and the next vertical hole is found to lie on both diagonals superior. Due to the arrangement of the pores, they can also function as cooling and / or damping holes, as well as stress reducing features.

Description

technical field [0001] In general, the present disclosure relates to pore structures and porous solids. In particular, aspects of the present disclosure relate to materials having a repeating hole pattern that imparts extraordinary mechanical properties (eg, negative Poisson's ratio), and systems, methods, and devices using such materials. Background technique [0002] When materials are compressed along a particular axis, they are most commonly observed to stretch in a direction orthogonal to the applied load. The property that characterizes this behavior is Poisson's ratio, which is defined as the ratio between negative transverse strain and longitudinal strain. Most materials are characterized by a positive Poisson's ratio, with rubber having a Poisson's ratio of about 0.5, and glass and steel having a Poisson's ratio of about 0.3. Materials with a negative Poisson's ratio will shrink (stretch) in the transverse direction when compressed (stretched), and although they c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63H1/14F04D29/58
CPCF23M2900/05004F23R3/002F23R3/06F23R2900/00005B23K15/08B23K26/38B32B3/266Y10T428/24314
Inventor 卡蒂娅·贝托尔迪迈克尔·泰勒阿里·沙尼安米克洛斯·格里安达斯卡尔·卡森
Owner PRESIDENT & FELLOWS OF HARVARD COLLEGE
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