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Method for carrying out deformation characterization on human tongue based on equivalent thickness bulk modulus

A technology of bulk modulus and characterization, which is applied in the direction of measuring devices, strength characteristics, and the use of stable tension/pressure to test the strength of materials, etc., can solve problems such as three-dimensional deformation of soft materials, and achieve the effect of eliminating influence

Pending Publication Date: 2022-04-05
JIANGNAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a soft material deformation characterization method based on equivalent thickness bulk modulus. According to the characterization method based on equivalent thickness bulk modulus IVMET of the present invention, it can solve the problem of local three-dimensional deformation of soft materials under compression conditions. Representation problem

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  • Method for carrying out deformation characterization on human tongue based on equivalent thickness bulk modulus
  • Method for carrying out deformation characterization on human tongue based on equivalent thickness bulk modulus
  • Method for carrying out deformation characterization on human tongue based on equivalent thickness bulk modulus

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Embodiment 1

[0065] Preferred embodiment 1: Deformation characterization of PDMS soft materials using IVMET

[0066] According to this preferred embodiment, first, the bionic soft material polydimethylsiloxane (PDMS) is used as the test material, and the mass ratio of the base liquid and the curing agent is 25:1, and the same process is used to prepare four thicknesses For different soft material samples, the sample thicknesses are 5.93mm, 4.83mm, 4.16mm and 3.21mm respectively.

[0067] According to this preferred embodiment, according to the above-mentioned specific steps of the IVMET-based soft material characterization method of the present invention, first, the obtained four kinds of soft material samples are successively placed on the MFT-5000 friction and wear testing machine, using a 10N sensor and a diameter of 3.2 mm flat indenter for compression test to obtain the force-displacement value curve; secondly, the compressive stress is calculated according to the force-displacement v...

Embodiment 2

[0071] Preferred embodiment 2: Deformation characterization of SEEPS thermoplastic elastomer soft material (SEEPS-TPE) using IVMET

[0072] According to this preferred embodiment, the SEEPS-TPE soft material is prepared by molding method, and the prepared samples have seven samples whose paraffin oil addition amounts are (0, 50, 100, 150, 200, 250, 300) phr respectively, and the obtained seven The samples were successively placed on the MFT-5000 friction and wear testing machine for compression tests using a 10N sensor and a flat indenter with a diameter of 3.2mm. Since it is difficult to obtain samples with the same thickness by molding method, the characterization method based on IVMET is used to characterize SEEPS-TPE with different paraffin oil additions to analyze the influence of different paraffin additions on SEEPS-TPE, see Figure 4 ( a) and Figure 4(b).

[0073] From the data in Figure 4(a) and Figure 4(b), it can be seen that with the increase of paraffin oil additi...

Embodiment 3

[0074] Preferred embodiment 3: Utilize IVMET to carry out deformation characterization to the SEEPS-TPE soft material that adds Talc

[0075] According to this preferred embodiment, first add quantitative Talc and antioxidant (1phr) to paraffin oil (140phr) and mix uniformly to form a suspension, then mix and stir the SEEPS material and suspension uniformly, and place for 8 hours. Finally, Talc-SEEPS-TPE was prepared by molding method, and the prepared samples were Talc-SEEPS-TPE with Talc addition amount of (0, 5, 10, 15, 20, 25, 30) phr. Put the obtained seven kinds of samples on the MFT-5000 friction and wear testing machine successively, and use the 10N sensor and the flat indenter with a diameter of 3.2mm to carry out the compression test. Talc-SEEPS-TPE with different Talc additions was characterized by IVMET to analyze the effect of different Talc additions on SEEPS-TPE, as shown in Figure 5(a) and Figure 5(b).

[0076] From the data in Figure 5(a) and Figure 5(b), it ...

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Abstract

The invention discloses a method for carrying out deformation characterization on a human tongue based on an equivalent thickness bulk modulus, and the method comprises the steps: dividing a tongue surface region into five parts according to the muscle distribution of a natural tongue, namely, dividing the five parts into a tongue tip, a tongue middle part, a tongue right side, a tongue left side and a tongue root part; moreover, the different measurement areas of the human tongue are divided according to the measurable range of the measurement device, and tongue muscle structure distribution in the same measurement area is relatively close; furthermore, different compression methods are adopted for different measurement areas, so that characterization data for the part are obtained. According to the characterization method disclosed by the invention, deformation characterization can be performed on different areas of the human tongue, so that a basis can be provided for selection and characterization of an oral cavity bionic soft material.

Description

[0001] This application is a divisional application of patent application publication number CN113075033A; the application date of the original application CN113075033A is: March 12, 2021, the application number is: 2021102691593, and the invention name is: Soft material deformation characterization based on equivalent thickness bulk modulus method and its application. technical field [0002] The invention relates to a method for characterizing deformation of human tongue based on equivalent thickness bulk modulus, and belongs to the technical fields of soft material indentation experiment and soft material characterization. Background technique [0003] Elastomer soft material is a polymer material with high elasticity and low permanent deformation, which is widely used in various fields of industrial production and daily life, and also has important applications in the field of bionics. However, the following problems will arise during the application of soft materials: o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G16C60/00G06F30/20G06F119/14
CPCG01N3/08G16C60/00G06F30/20G01N2203/0019G06F2119/14
Inventor 钱善华刘智丁宗如王亮倪自丰俞经虎
Owner JIANGNAN UNIV
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