CN110146814B - Method and device for detecting energy absorption of carbon fiber composite material wound metal pipe - Google Patents

Method and device for detecting energy absorption of carbon fiber composite material wound metal pipe Download PDF

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CN110146814B
CN110146814B CN201910469753.XA CN201910469753A CN110146814B CN 110146814 B CN110146814 B CN 110146814B CN 201910469753 A CN201910469753 A CN 201910469753A CN 110146814 B CN110146814 B CN 110146814B
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孙佳睿
马其华
董柏岩
陈涛
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Shanghai University of Engineering Science
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Abstract

The invention relates to a method and a device for detecting the energy absorption of a carbon fiber composite material wound metal pipe, wherein the method specifically comprises the following steps: transversely loading the carbon fiber composite material wound metal pipe under a three-point bending test until the metal pipe is subjected to collapse deformation, acquiring test data, and calculating the equivalent yield strength of the carbon fiber composite material wound metal pipe according to the test data; establishing a theoretical bending model M (theta) of the carbon fiber composite material wound metal pipe according to the test data and the equivalent yield strength, wherein M represents bending moment, and theta represents rotation angle; and acquiring the energy absorption W by an integral mode according to a theoretical model. Compared with the prior art, the method and the device have the advantages that the energy absorption of the metal pipe wound by the carbon fiber composite material is detected, the theoretical bending model of the metal pipe wound by the carbon fiber composite material is established, and the method and the device can be suitable for calculating the energy absorption of various metal pipes wound by different fiber composite materials with different diameter-thickness ratios under transverse loads.

Description

Method and device for detecting energy absorption of carbon fiber composite material wound metal pipe
Technical Field
The invention relates to the field of automobile design and manufacture, in particular to a method and a device for detecting the energy absorption of a metal pipe wound by a carbon fiber composite material.
Background
Thin-walled components are widely used in collision avoidance systems in the fields of automobiles, airplanes, and the like. With the dual requirements of safety and energy saving in these fields, it is important to improve the crashworthiness of thin-wall structures while keeping the weight as low as possible. For thin-walled structures such as front and rear impact beams, door impact beams, bumpers, and body B-pillars of vehicles, bending is the primary mode of deformation energy absorption during actual impact, and in engineered practical structures, up to 90% of structural failure is due to transverse load bending failure. Therefore, the method has very important engineering significance for the research on the energy absorption of the thin-wall structure under the transverse load.
The carbon fiber composite material wound metal pipe can be used for manufacturing a thin-wall component which is lighter in weight and better in anti-collision performance, but the carbon fiber composite material wound metal pipe is used as a novel material different from a common metal round pipe, and a detection method for bending moment rotation response and energy absorption of the metal pipe under transverse load is lacked, so that the design of an accurate thin-wall component is difficult to be directly carried out by winding the metal pipe through the carbon fiber composite material at present.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a method and a device for detecting the energy absorption of a carbon fiber composite material wound metal pipe.
The purpose of the invention can be realized by the following technical scheme:
a method for detecting the energy absorption of a carbon fiber composite material wound metal pipe specifically comprises the following steps:
s1, transversely loading a carbon fiber composite material wound metal pipe under a three-point bending test until the metal pipe is deformed by collapse, acquiring test data, and calculating the equivalent yield strength of the carbon fiber composite material wound metal pipe according to the test data;
s2, establishing a theoretical bending model M (theta) of the carbon fiber composite material wound metal pipe according to the test data and the equivalent yield strength, wherein M represents bending moment, and theta represents rotation angle;
s3, acquiring the energy absorption W in an integral mode according to a theoretical model, wherein the calculation expression is as follows:
W＝∫M(θ)dθ。
further, the theoretical model of the bending of the carbon fiber composite material wound metal tube is as follows;
and (3) elastic-plastic stage:
Figure BDA0002080486360000021
wherein M is the bending moment in the elastoplastic phase, L0For the span length of the test device, θ is the rotation angle of the tube in the elastoplastic stage, D0To the mixing tube external diameter, σ0Equivalent yield strength for carbon fiber composite wound metal tubes, EhModulus of elasticity, I, for winding carbon fiber composite material around metal tubeshThe section inertia moment of the carbon fiber composite material wound around the metal pipe is obtained;
and (3) a section ovalization and stabilization stage:
Figure BDA0002080486360000022
wherein M isuIs limit moment, θovalThe carbon fiber composite material is an elliptic corner, R is the outer radius of the carbon fiber composite material wound on the metal pipe, and t is the total thickness of the carbon fiber composite material wound on the metal pipe;
a structure collapse stage:
Figure BDA0002080486360000023
Figure BDA0002080486360000024
M0＝4σ0R2t
wherein M is0The bending moment is the overall plastic bending moment of the section of the circular pipe when the circular pipe is not deformed, phi is the mechanism angle when the circular pipe is deformed, H is the length of the plastic folding area of the circular pipe, and r is the rolling radius when the circular pipe is deformed.
Further, the calculation expression of the equivalent yield strength of the carbon fiber composite material wound metal pipe is as follows:
Figure BDA0002080486360000025
in the formula, tmAnd tcThickness of the metal tube and thickness of the carbon fiber composite material, σmIs the yield strength, σ, of the metal tubecThe yield strength of the carbon fiber composite material is shown, epsilon is true strain, K is a strain strength coefficient, and n is a strain hardening index.
Further, the yield strength calculation expression of the carbon fiber composite material is as follows:
Figure BDA0002080486360000031
wherein alpha is the i-th layer winding angle of the carbon fiber composite material, tci[α]Is the thickness, σ, of the ith winding layer of the carbon fiber composite material1And σ2Respectively parallel to the carbon fibre composite fibres and perpendicular to the carbon fibre composite fibres, tau12Is the in-plane shear strength of the carbon fiber composite.
The device comprises a processor and a memory, wherein the processor calls data in the memory to execute a program and is used for realizing the following steps:
s1, acquiring test data of transversely loading the carbon fiber composite material wound metal pipe under a three-point bending test until the metal pipe is subjected to collapse deformation, and calculating the equivalent yield strength of the carbon fiber composite material wound metal pipe according to the test data;
s2, establishing a theoretical bending model M (theta) of the carbon fiber composite material wound metal pipe according to the test data and the equivalent yield strength, wherein M represents bending moment, and theta represents rotation angle;
s3, acquiring the energy absorption W in an integral mode according to a theoretical model, wherein the calculation expression is as follows:
W＝∫M(θ)dθ。
further, the theoretical model of the bending of the carbon fiber composite material wound metal tube is as follows;
and (3) elastic-plastic stage:
Figure BDA0002080486360000032
wherein M is the bending moment in the elastoplastic phase, L0For the span length of the test device, θ is the rotation angle of the tube in the elastoplastic stage, D0To the mixing tube external diameter, σ0Equivalent yield strength for carbon fiber composite wound metal tubes, EhModulus of elasticity, I, for winding carbon fiber composite material around metal tubeshThe section inertia moment of the carbon fiber composite material wound around the metal pipe is obtained;
and (3) a section ovalization and stabilization stage:
Figure BDA0002080486360000033
wherein M isuIs limit moment, θovalThe carbon fiber composite material is an elliptic corner, R is the outer radius of the carbon fiber composite material wound on the metal pipe, and t is the total thickness of the carbon fiber composite material wound on the metal pipe;
a structure collapse stage:
Figure BDA0002080486360000034
Figure BDA0002080486360000041
Figure BDA0002080486360000042
M0＝4σ0R2t
wherein M is0The bending moment is the overall plastic bending moment of the section of the circular pipe when the circular pipe is not deformed, phi is the mechanism angle when the circular pipe is deformed, H is the length of the plastic folding area of the circular pipe, and r is the rolling radius when the circular pipe is deformed.
Further, the calculation expression of the equivalent yield strength of the carbon fiber composite material wound metal pipe is as follows:
Figure BDA0002080486360000043
in the formula, tmAnd tcThickness of the metal tube and thickness of the carbon fiber composite material, σmIs the yield strength, σ, of the metal tubecThe yield strength of the carbon fiber composite material is shown, epsilon is true strain, K is a strain strength coefficient, and n is a strain hardening index.
Further, the yield strength calculation expression of the carbon fiber composite material is as follows:
Figure BDA0002080486360000044
wherein alpha is the i-th layer winding angle of the carbon fiber composite material, tci[α]Is the thickness, σ, of the ith winding layer of the carbon fiber composite material1And σ2Respectively parallel to the carbon fibre composite fibres and perpendicular to the carbon fibre composite fibres, tau12Is the in-plane shear strength of the carbon fiber composite.
Compared with the prior art, the invention has the following advantages:
1. the invention realizes the detection of the energy absorption of the metal pipe wound by the carbon fiber composite material, establishes the theoretical bending model of the metal pipe wound by the carbon fiber composite material, and can be suitable for calculating the energy absorption of various metal pipes wound by different fiber composite materials with different diameter-thickness ratios under transverse load.
2. The invention considers the hardening behavior of the plastic deformation of the round tube which is easy to occur in the detection process, and can enable the detection result to be more accurate.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic layout of a three-point bending test.
FIG. 3 is a schematic view of a bending moment-rotation angle curve of a carbon fiber composite material wound around a metal pipe.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1, the embodiment provides a method for detecting energy absorption of a carbon fiber composite material wound metal pipe, which specifically includes the following steps:
s1, transversely loading a carbon fiber composite material wound metal pipe under a three-point bending test until the metal pipe is collapsed and deformed, acquiring test data, and calculating the equivalent yield strength of the carbon fiber composite material wound metal pipe according to the test data;
s2, establishing a theoretical bending model M (theta) of the carbon fiber composite material wound metal pipe according to the test data and the equivalent yield strength, wherein M represents bending moment, and theta represents rotation angle;
and S3, acquiring the energy absorption amount through an integral mode according to the theoretical model.
The three-point bending test is carried out on the carbon fiber composite material wound metal pipe, and the distribution of the three-point bending test is specifically arranged as shown in figure 2. The loading rate of the transverse load is 10mm/min, and the loading length is 40 mm. The diameters of the loading roller and the supporting roller are both 15mm, the span of the supporting roller is 250mm, and the sampling length of the carbon fiber composite material wound on the metal pipe is 300 mm.
The winding mode of the carbon fiber composite material for winding the metal pipe is [90 degrees +/-45 degrees/90 degrees ], and the geometric parameters and the material performance parameters of the carbon fiber composite material for winding the steel pipe are shown in tables 1 and 2. The metal pipe is a steel pipe.
TABLE 1 geometric parameters of carbon fiber composite material wound metal tube
Figure BDA0002080486360000051
TABLE 2 Material parameters
Figure BDA0002080486360000052
Figure BDA0002080486360000061
Before calculating the equivalent yield strength of the carbon fiber composite material wound metal pipe according to the test data, determining the yield strength of the carbon fiber composite material, wherein the calculation expression is as follows:
Figure BDA0002080486360000062
wherein alpha is the i-th layer winding angle of the carbon fiber composite material, tci[α]Is the thickness, σ, of the ith winding layer of the carbon fiber composite material1And σ2Respectively parallel to the carbon fibre composite fibres and perpendicular to the carbon fibre composite fibres, tau12Is the in-plane shear strength of the carbon fiber composite.
The equivalent yield strength calculation expression of the carbon fiber composite material wound metal pipe is as follows:
Figure BDA0002080486360000063
in the formula, tmAnd tcThickness of the metal tube and thickness of the carbon fiber composite material, σmIs the yield strength, σ, of the metal tubecThe yield strength of the carbon fiber composite material is shown, epsilon is true strain, K is a strain strength coefficient, n is a strain hardening index, and E is the elastic modulus of the metal pipe.
The bending rigidity of the carbon fiber composite material wound metal pipe is obtained, and the calculation expression is as follows:
Figure BDA0002080486360000064
in the formula, EciIs the equivalent modulus of elasticity of the I-th layer of the carbon fiber composite material in the fiber direction, E is the modulus of elasticity of the metal pipe, IiIs the section moment of inertia of the ith layer of the carbon fiber composite material, and I is the section moment of inertia of the metal.
Establishing bending moment-rotation angle of the carbon fiber composite material wound metal pipe based on a bending theory, and establishing a model according to deformation forms of the carbon fiber composite material wound metal pipe at different stages under transverse load: the bending moment-rotation angle relation of the carbon fiber composite material wound metal pipe is mainly divided into three stages:
(1) and (3) elastic-plastic stage:
Figure BDA0002080486360000065
wherein M is the bending moment in the elastoplastic phase, L0For the span length of the test device, θ is the rotation angle of the tube in the elastoplastic stage, D0To the mixing tube external diameter, σ0Equivalent yield strength for carbon fiber composite wound metal tubes, EhModulus of elasticity, I, for winding carbon fiber composite material around metal tubeshThe section inertia moment of the carbon fiber composite material wound around the metal pipe is obtained; when the bending moment of the elastic-plastic stage reaches the limit moment, the second stage is the beginning of the ovalization and stabilization stage.
(2) And (3) a section ovalization and stabilization stage:
Figure BDA0002080486360000071
wherein M isuIs limit moment, θoval is an elliptic corner, R is the outer radius of the carbon fiber composite material wound metal pipe, and t is the total thickness of the carbon fiber composite material wound metal pipe. Since the rotation angle of the second stage cannot be theoretically determined, it can be determined by the relationship between the bending moment-rotation angle curves of the second and third stages, i.e., the ending angle of the ovalizing plateau is the starting angle of the structure collapse stage.
(3) A structure collapse stage:
Figure BDA0002080486360000072
Figure BDA0002080486360000073
M0＝4σ0R2t
wherein M is0The bending moment is the overall plastic bending moment of the section when the round pipe is not deformed, phi is the mechanism angle when the round pipe is deformed, H is the length of the plastic folding area of the round pipe, H is 1.31R, R is the rolling radius when the round pipe is deformed, and R is 0.6R.
And combining the relationship between the bending moment and the rotation angle in the three stages to obtain a bending moment-rotation angle curve of the carbon fiber composite material wound metal pipe, as shown in fig. 3. The absorption energy of the carbon fiber composite material wound metal pipe under the transverse load obtained according to curve integration can be calculated as follows:
W＝∫M(θ)dθ
the rotation angle corresponding to the maximum bending moment obtained by the theoretical model of bending moment-rotation angle is 10.1 degrees, and the energy absorption is 305.7J.
In conclusion, the method for detecting the energy absorption of the metal pipe wound by the carbon fiber composite material can accurately predict the energy absorption of the bending and crushing of the metal pipe wound by the carbon fiber composite material, can realize early-stage rapid evaluation and timely modification of a design scheme, and reduces the manufacturing cost and the test cost of a sample.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims (2)

1. The method for detecting the energy absorption of the carbon fiber composite material wound metal pipe is characterized by comprising the following steps of:
s1, transversely loading a carbon fiber composite material wound metal pipe under a three-point bending test until the metal pipe is deformed by collapse, acquiring test data, and calculating the equivalent yield strength of the carbon fiber composite material wound metal pipe according to the test data;
s2, establishing a theoretical bending model M (theta) of the carbon fiber composite material wound metal pipe according to the test data and the equivalent yield strength, wherein M represents bending moment, and theta represents rotation angle;
s3, acquiring the energy absorption W in an integral mode according to a theoretical model, wherein the calculation expression is as follows:
W＝∫M(θ)dθ；
the theoretical model for bending the carbon fiber composite material wound metal tube is as follows;
and (3) elastic-plastic stage:
Figure FDA0002971352690000011
wherein M is1Bending moment in the elastoplastic phase, L0For the test apparatus span length, θ1The angle of rotation of the tube in the elastoplastic stage, D0To the mixing tube external diameter, σ0Equivalent yield strength for carbon fiber composite wound metal tubes, EhModulus of elasticity, I, for winding carbon fiber composite material around metal tubeshThe section inertia moment of the carbon fiber composite material wound around the metal pipe is obtained;
and (3) a section ovalization and stabilization stage:
Mu＝3σ0tR2，
Figure FDA0002971352690000012
wherein M isuIs limit moment, θovalIs an elliptic corner, R is the outer radius of the carbon fiber composite material wound metal pipe, and t is the total of the carbon fiber composite material wound metal pipeThickness;
a structure collapse stage:
Figure FDA0002971352690000013
Figure FDA0002971352690000014
M0＝4σ0R2t
wherein M is2Bending moment for the collapse phase of the structure, M0The bending moment is an all-plastic bending moment of the section of the circular pipe when the circular pipe is not deformed, phi is a mechanism angle when the circular pipe is deformed, H is the length of a plastic folding area of the circular pipe, and r is the rolling radius when the circular pipe is deformed;
the equivalent yield strength calculation expression of the carbon fiber composite material wound metal pipe is as follows:
Figure FDA0002971352690000021
in the formula, tmAnd tcThickness of the metal tube and thickness of the carbon fiber composite material, σmIs the yield strength of the metal tube, E is the modulus of elasticity, σ, of the metal tubecThe yield strength of the carbon fiber composite material is shown, epsilon is true strain, K is a strain strength coefficient, and n is a strain hardening index;
the yield strength calculation expression of the carbon fiber composite material is as follows:
Figure FDA0002971352690000022
wherein alpha is the i-th layer winding angle of the carbon fiber composite material, tci[α]Is the thickness, σ, of the ith winding layer of the carbon fiber composite material1And σ2Respectively parallel to the carbon fiber composite material fiber and perpendicular to the carbon fiber composite material fiberIntensity of dimension, τ12Is the in-plane shear strength of the carbon fiber composite.
2. The device for detecting the energy absorption of the carbon fiber composite material wound metal pipe comprises a processor and a memory, and is characterized in that the processor calls a data execution program in the memory to realize the following steps:
s1, acquiring test data of transversely loading the carbon fiber composite material wound metal pipe under a three-point bending test until the metal pipe is subjected to collapse deformation, and calculating the equivalent yield strength of the carbon fiber composite material wound metal pipe according to the test data;
s2, establishing a theoretical bending model M (theta) of the carbon fiber composite material wound metal pipe according to the test data and the equivalent yield strength, wherein M represents bending moment, and theta represents rotation angle;
s3, acquiring the energy absorption W in an integral mode according to a theoretical model, wherein the calculation expression is as follows:
W＝∫M(θ)dθ；
the theoretical model for bending the carbon fiber composite material wound metal tube is as follows;
and (3) elastic-plastic stage:
Figure FDA0002971352690000023
wherein M is1Bending moment in the elastoplastic phase, L0For the test apparatus span length, θ1The angle of rotation of the tube in the elastoplastic stage, D0To the mixing tube external diameter, σ0Equivalent yield strength for carbon fiber composite wound metal tubes, EhModulus of elasticity, I, for winding carbon fiber composite material around metal tubeshThe section inertia moment of the carbon fiber composite material wound around the metal pipe is obtained;
and (3) a section ovalization and stabilization stage:
Mu＝3σ0tR2，
Figure FDA0002971352690000031
wherein M isuIs limit moment, θovalThe carbon fiber composite material is an elliptic corner, R is the outer radius of the carbon fiber composite material wound on the metal pipe, and t is the total thickness of the carbon fiber composite material wound on the metal pipe;
a structure collapse stage:
Figure FDA0002971352690000032
Figure FDA0002971352690000033
M0＝4σ0R2t
wherein M is2Bending moment for the collapse phase of the structure, M0The bending moment is an all-plastic bending moment of the section of the circular pipe when the circular pipe is not deformed, phi is a mechanism angle when the circular pipe is deformed, H is the length of a plastic folding area of the circular pipe, and r is the rolling radius when the circular pipe is deformed;
the equivalent yield strength calculation expression of the carbon fiber composite material wound metal pipe is as follows:
Figure FDA0002971352690000034
in the formula, tmAnd tcThickness of the metal tube and thickness of the carbon fiber composite material, σmIs the yield strength of the metal tube, E is the modulus of elasticity, σ, of the metal tubecThe yield strength of the carbon fiber composite material is shown, epsilon is true strain, K is a strain strength coefficient, and n is a strain hardening index;
the yield strength calculation expression of the carbon fiber composite material is as follows:
Figure FDA0002971352690000035
wherein alpha is the i-th layer winding angle of the carbon fiber composite material, tci[α]Is the thickness, σ, of the ith winding layer of the carbon fiber composite material1And σ2Respectively parallel to the carbon fibre composite fibres and perpendicular to the carbon fibre composite fibres, tau12Is the in-plane shear strength of the carbon fiber composite.
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112560164A (en) * 2019-09-26 2021-03-26 广州汽车集团股份有限公司 Automobile B-pillar section design method and computer readable storage medium
CN116084323B (en) * 2023-03-07 2023-07-04 西南交通大学 Derailment blocking system for high-speed train and structural design method thereof

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006231401A (en) * 2005-02-28 2006-09-07 Jfe Steel Kk Method of manufacturing extra-low yr electric welded tube for building material
DE602004027144D1 (en) * 2003-07-28 2010-06-24 Sumitomo Metal Ind IMPACT-ABSORBING LINK
CN103425848A (en) * 2013-08-30 2013-12-04 吉林大学 Front longitudinal beam anti-collision performance design method for passenger vehicle
CN103582714A (en) * 2011-05-12 2014-02-12 杰富意钢铁株式会社 Vehicle collision energy absorbing member having high collision energy absorbing power, and method for manufacturing same
CN104088947A (en) * 2014-06-06 2014-10-08 中国核电工程有限公司 Energy absorption device adopting material limit characteristic and manufacturing method of energy absorption device
CN104122058A (en) * 2013-04-28 2014-10-29 宝山钢铁股份有限公司 Three-point bending drop collision test method and device for equivalently simplifying beam
CN106282776A (en) * 2016-08-31 2017-01-04 江苏振蓝汽车装备材料有限公司 A kind of New energy electric bus body lightweight welded tube material and processing method thereof
CN106874579A (en) * 2017-01-18 2017-06-20 广西大学 GB150-1998 analysis of Ultimate method based on yield strength and the double key points of tensile strength
CN208239093U (en) * 2018-06-05 2018-12-14 亚太轻合金(南通)科技有限公司 A kind of collision prevention girders three-point bend test device
CN109446561A (en) * 2018-09-21 2019-03-08 吉林大学 Composite material antisymmetry wraps up square tube crush characteristics analysis method

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602004027144D1 (en) * 2003-07-28 2010-06-24 Sumitomo Metal Ind IMPACT-ABSORBING LINK
JP2006231401A (en) * 2005-02-28 2006-09-07 Jfe Steel Kk Method of manufacturing extra-low yr electric welded tube for building material
CN103582714A (en) * 2011-05-12 2014-02-12 杰富意钢铁株式会社 Vehicle collision energy absorbing member having high collision energy absorbing power, and method for manufacturing same
CN104122058A (en) * 2013-04-28 2014-10-29 宝山钢铁股份有限公司 Three-point bending drop collision test method and device for equivalently simplifying beam
CN103425848A (en) * 2013-08-30 2013-12-04 吉林大学 Front longitudinal beam anti-collision performance design method for passenger vehicle
CN104088947A (en) * 2014-06-06 2014-10-08 中国核电工程有限公司 Energy absorption device adopting material limit characteristic and manufacturing method of energy absorption device
CN106282776A (en) * 2016-08-31 2017-01-04 江苏振蓝汽车装备材料有限公司 A kind of New energy electric bus body lightweight welded tube material and processing method thereof
CN106874579A (en) * 2017-01-18 2017-06-20 广西大学 GB150-1998 analysis of Ultimate method based on yield strength and the double key points of tensile strength
CN208239093U (en) * 2018-06-05 2018-12-14 亚太轻合金(南通)科技有限公司 A kind of collision prevention girders three-point bend test device
CN109446561A (en) * 2018-09-21 2019-03-08 吉林大学 Composite material antisymmetry wraps up square tube crush characteristics analysis method

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
Energy absorption mechanics and design optimization of CFRP/aluminium hybrid structures for transverse loading;Guangyong Sun 等;《International Journal of Mechanical Sciences》;20181023;第767-783页 *
Numerical analysis of the damage behavior of an aluminum/CFRP hybrid beam under three point bending;D.K. Shin 等;《Composites: Part B》;20130820;第397-407页 *
Parametric study of the cross-section shape of aluminium tubes in dynamic three-point bending;David Bilston 等;《Thin-Walled Structures》;20190107;第315-322页 *
金属与复合材料的混合结构吸能特性研究;余航;《中国优秀硕士学位论文全文数据库 工程科技I辑》;20190115;B020-545 *

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