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Mixed structure and its preparation method

A hybrid structure and metal structure technology, applied in substructure, superstructure, subassembly of superstructure, etc., can solve problems such as fragile and unreliable attachment mechanisms

Active Publication Date: 2022-03-25
SABIC GLOBAL TECH BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Furthermore, the attachment mechanisms used for such reinforcement structures are often weak and unreliable

Method used

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  • Mixed structure and its preparation method
  • Mixed structure and its preparation method
  • Mixed structure and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] For the purposes of this example, simulations were performed using LS-DYNA. LS-DYNA is an advanced general-purpose multiphysics simulation software package developed by Livermore Software Technology Corporation (LSTC). figure 1 Represents a framing member forming a centrally located deformation. image 3 represents a frame member according to the present disclosure that includes a concave deformation along a convex curvature in the frame wall. Steel is used to simulate frame members. Such as figure 1 As shown in , the deformation of the frame walls is not uniform in thickness. with the rest of the frame wall (thickness 1.2 mm (t 1 )) compared to the deformed outer edge is significantly thinner and only 0.7 millimeters (mm) in thickness (t 2 ) (see Figure 2A and 2B ). In contrast, according to variations of the present disclosure, such as image 3 shown, maintain a uniform thickness of 1.2 mm (see Figure 4A and 4B ). The uniform thickness of the present def...

Embodiment 2

[0057] For the purposes of this example, simulations were performed using LS-DYNA. Figure 6 is a graph comparing the intrusion during impact of Structure A (line 32 ) compared to Structure B (line 34 ). For example purposes, an impact velocity of 50 kilometers per hour is used. A hybrid structure with deformations in the flat parts of the frame members (Structure A) was simulated using all steel components weighing a total of 4.5 kg. Simulate convex curvature (e.g., corners) along frame members (Structure B) with deformations using a steel frame (1.0 mm, 2.2 kg) and plastic reinforcements (2-3.5 mm, 0.8 kg) (weighing a total of 3.0 kg) mixed structure. Figure 6 The unexpectedly advantageous properties of Structure B are shown. Such as Figure 6 As shown, hybrid structure B is surprisingly superior to metallic structure A in terms of stiffness during impact.

Embodiment 3

[0059] For the purposes of this example, simulations were performed using LS-DYNA. Figure 7 The injection molding time for Structure B is depicted as 2.6 seconds. Figure 8 The maximum injection pressure for Structure B is depicted as 77.87 MPa. It should be noted that these values ​​conform to industry standards.

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Abstract

A hybrid structure comprising: a frame member comprising at least three walls forming a channel having a convex portion where two walls meet; a concave deformation in at least one convex portion, wherein the concave a plastic reinforcement member in the channel, wherein a portion of the reinforcement member extends into the opening and extends over the deformation.

Description

technical field [0001] The present invention relates to hybrid structures and methods for their preparation. Background technique [0002] Reinforced structures such as energy absorbers are often used in the manufacture of high load-bearing applications such as automotive components and racks. These structures are usually composed of metals and / or composite materials. As such, reinforcement structures are often heavy and / or expensive to manufacture and difficult to incorporate into vehicles and other machinery. It is often difficult to achieve the right balance of desired properties such as stiffness, impact resistance, affordability, ease of manufacture and lightweight design. For example, additional metal inserts are often required to achieve the required stiffness. Forming metal components into more complex geometries is also difficult. [0003] Furthermore, the attachment mechanisms used for such reinforcement structures are often weak and unreliable. For example, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D21/15B62D25/04B60R19/34
CPCB62D21/152B62D25/04B60R19/03B29C70/68B29K2101/12B29K2705/02B29K2705/12B29L2031/3002B60R19/18B60R2019/1806B62D21/02B62D21/15B62D25/08B62D25/20B62D27/02B62D27/026B62D29/004
Inventor 普万纳·特蒂拉·库沙拉帕迪内希·蒙久鲁利马纳阿鲁纳恰拉·帕拉默什瓦拉拉加文德拉·贾尼瓦拉德德汉恩德拉·库马尔·纳格万什马修·迈克尔·德拉尼
Owner SABIC GLOBAL TECH BV