P-S-N curve representation method for additive manufacturing material and application thereof

A P-S-N, additive manufacturing technology, applied in the direction of analyzing materials, measuring devices, instruments, etc., can solve the problem of unsatisfactory single-peak characterization results and achieve reasonable results

Active Publication Date: 2019-03-15
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] The purpose of the present invention is to provide additive manufacturing material P-S-N curve characterization method and its application, to solve the unsatisfactory problem of single peak characterization results

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  • P-S-N curve representation method for additive manufacturing material and application thereof
  • P-S-N curve representation method for additive manufacturing material and application thereof
  • P-S-N curve representation method for additive manufacturing material and application thereof

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Embodiment Construction

[0054] Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the present invention is described in further detail. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0055] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. "First", "second", "third" and "fourth" do not represent any sequence relationship, but are only for the convenience of description. For those of ordinary skill in the art, the specific m...

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Abstract

The invention relates to the field of representing fatigue property of materials, in particular to a P-S-N curve representation method for an additive manufacturing material and application thereof. The method comprises the following steps: describing a mode of a fatigue service life distributing characteristic under a given stress level by adopting double peak logarithmic normal distribution andestablishing a distributing parameter evaluation method; on this basis, establishing a fatigue P-S-N curve parameter evaluation method; and acquiring a fatigue test result under the given stress level, carrying out data processing of double peak logarithmic normal distribution and establishing the distributing parameter evaluation method to form the fatigue service life distribution characteristicof a curve representation describing material of P-S-N. Compared with single peak logarithmic normal distribution, the method is more reasonable and can better reflect the fatigue service life dispersibility problem induced by factors such as process characteristics, so that a result based on a limited test piece test is more reasonable.

Description

technical field [0001] The invention relates to the field of material fatigue performance characterization, in particular to a P-S-N curve characterization method and application of additive manufacturing materials. Background technique [0002] Manufacturing is the focus of attention at home and abroad, and has obvious advantages: Compared with traditional technology, it can achieve low cost, high efficiency, and easy modification in the early stage of research and development and sample trial production; in the production of complex parts such as mold manufacturing and direct product molding, it can be optimized Design, reduce costs, shorten the cycle, realize the product structure that could not be realized before, and also reduce the number of parts and improve the reliability of the system; the damaged parts can be repaired without repeated production, and the utilization rate is greatly improved. Therefore, manufacturing has become a research hotspot at home and abroad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/00
CPCG01N3/00G01N2203/0073G01N2203/021G01N2203/067
Inventor 贺小帆王天帅隋芳媛王晓波董颖豪李玉海
Owner BEIHANG UNIV
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