CN203365241U - Testing device for interface tensile bonding strength of laminated metal composite - Google Patents
Testing device for interface tensile bonding strength of laminated metal composite Download PDFInfo
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- CN203365241U CN203365241U CN 201320412733 CN201320412733U CN203365241U CN 203365241 U CN203365241 U CN 203365241U CN 201320412733 CN201320412733 CN 201320412733 CN 201320412733 U CN201320412733 U CN 201320412733U CN 203365241 U CN203365241 U CN 203365241U
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Abstract
The utility model discloses a testing device for interface tensile bonding strength of a laminated metal composite. The testing device comprises two L-shaped metal clamp arms which can be assembled in a mutual conjunction manner, wherein long sections of the two metal clamp arms are provided with a concave square non-through groove and a square channel respectively; when the two metal clamp arms perform antisymmetry layout assembly, a laminated metal composite test sample is mounted in a bottom limiting position of the non-through groove in a pushing manner by the square channel, so that an interface of the laminated metal composite test sample is flush with an assembly contact surface of the two metal clamp arms; and short sections of the two metal clamp arms are mounted in two jaw fixtures of a tensile testing machine respectively, so that an axis of the tensile testing machine applying a tensile load and the interface of the laminated metal composite test sample are in the same plane, and a tensile test is performed. The testing device can rapidly, conveniently and qualitatively measure the interface tensile bonding strength of the laminated metal composite; sample preparation of a testing piece is simple; and a smaller dimension can be taken for testing.
Description
Technical field
The utility model relates to a kind of mechanics test device of material, particularly relates to a kind of compound substance cohesive strength proving installation, is applied to analytical test and the selection manufacturing technology field of composite materials property.
Background technology
Laminated-metal composite is to utilize the Material cladding technology to make two or more physics, chemistry, metal that mechanical property is different realize a kind of advanced composite material (ACM) of metallurgical binding at interface.It can comprehensively bring into play the performance advantage of different metal, and the use amount of saving valuable precious metal, and all many-sides such as applying, reduce costs in engineering are significant.
The interface binding intensity of laminated-metal composite is the important indicator that determines this material mechanical performance, and to a great extent, the quality of interfacial bond property can determine the serviceable life of whole member and equipment.But all the time, numerous investigation of materials persons are being perplexed in the quantitative measurment of the interface binding intensity of laminated-metal composite, especially the quantitative measurment of the cohesive strength of some thin layer laminated-metal composites.Some researchers use the crooked test method, see GB-232 material bending test standard, can only qualitative explanation laminated-metal composite adhesion quality, and can not the quantitative data.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of laminated-metal composite interface tension cohesive strength proving installation is provided, this device is observational measurement laminated-metal composite interface tension cohesive strength quickly and easily, the test block sample preparation is simple, and desirable reduced size can be tested.
Create purpose for reaching foregoing invention, the utility model adopts following technical proposals:
A kind of laminated-metal composite interface tension cohesive strength proving installation, comprise two L shaped metal jig arm can mutually agreeing with assembling, be respectively the first jig arm and the second jig arm, L shaped metal jig arm is divided with short section part one and is connected to form by long section part, the long section part of two metal jig arm divides an inflexed side surface for the assembling surface of contact, also be provided with the square groove that do not connect of indent at the assembling surface of contact of the first jig arm, the assembling surface of contact of vertical the second jig arm is provided with the square duct that the long section part that runs through the second jig arm divides, the notch consistent size that does not connect groove of the internal diameter size of the square duct of the second jig arm and the first jig arm, form concavo-convex joint portion corresponding to position on the assembling surface of contact of two metal jig arm, making the first jig arm and the second jig arm carry out antisymmetry arranges while assembling, the internal diameter size of the square duct of the second jig arm docks with the notch that does not connect groove of the first jig arm, form the installation slideway of square laminated-metal composite sample, after the laminating of the assembling surface of contact of the first jig arm and the second jig arm is agreed with to assembling, the projection of the inside surface that does not connect groove on the assembling surface of contact of the inside surface of the square duct of the second jig arm projection on surface of contact and first jig arm in assembling overlaps, the laminated-metal composite sample is processed, make the material thickness of interface one side of unlike material layer of laminated-metal composite sample identical with the degree of depth that does not connect groove of the first jig arm, and make the outside surface of laminated-metal composite sample, the square duct inside surface of the second jig arm is identical with the roughness of the inside surface that does not connect groove of the first jig arm, the material hardness of two metal jig arm is greater than the hardness that forms any metal material in the laminated-metal composite sample, when by the laminated-metal composite sample square duct by the second jig arm push be installed to the first jig arm do not connect the bottom limit position of groove the time, make the interface of laminated-metal composite sample concordant with the assembling surface of contact of two metal jig arm, short section part of two metal jig arm is arranged on respectively in two tiger’s jaw fixtures of cupping machine, make cupping machine apply the isoplanar, interface of tensile load axis and laminated-metal composite sample, carry out tension test, in the tension test process, concavo-convex joint portion fits together two metal jig arm all the time closely.
As the improved technical scheme of the utility model, dovetail shaped draw-in groove and dovetail shaped boss are set respectively on the assembling surface of contact of the first jig arm and the second jig arm, dovetail shaped draw-in groove and dovetail shaped boss agree with mutually, i.e. and assembling forms concavo-convex joint portion.
As the further improved technical scheme of the utility model, dovetail shaped draw-in groove and the dovetail shaped boss surface roughness matched are all consistent with the surfaceness of the assembling surface of contact of two metal jig arm.
The outer surface roughness Ra of above-mentioned dovetail shaped draw-in groove inside surface roughness and the dovetail shaped boss matched is preferably neither lower than 0.2.
After above-mentioned the first jig arm and the second jig arm are agreed with mutually, in the tension test process, make two gap width d1 between the metal jig arm preferably be not more than all the time 0.1mm.
The degree of depth h1 that does not connect groove of above-mentioned the first jig arm is preferably 1～8mm, and the laminated-metal composite sample is processed, and makes the material thickness h2 of interface one side of laminated-metal composite sample also be preferably 1～8mm.
The utility model compared with prior art, has following substantive distinguishing features and advantage:
The utility model laminated-metal composite interface tension cohesive strength proving installation is quantitative measurment laminated-metal composite interface tension cohesive strength quickly and easily, the test block sample preparation is simple, desirable reduced size can be tested, for important data message is provided in serviceable life of composite element and equipment.
The accompanying drawing explanation
Fig. 1 is that the first jig arm and the second jig arm of the utility model embodiment mono-agreed with the package assembly schematic diagram.
Fig. 2 is the laminated-metal composite sample machining sketch chart that matches with the utility model embodiment mono-stratiform metallic composite interface tension cohesive strength proving installation and test.
Fig. 3 is the schematic diagram that the laminated-metal composite sample is packed in the utility model embodiment mono-stratiform metallic composite interface tension cohesive strength proving installation.
Fig. 4 is the constitutional diagram that the utility model embodiment mono-stratiform metallic composite interface tension cohesive strength proving installation is tested.
Embodiment
Preferred embodiment accompanying drawings of the present utility model is as follows:
embodiment mono-:
In the present embodiment, referring to Fig. 1～Fig. 4,
A kind of laminated-metal composite interface tension cohesive strength proving installation, comprise two L shaped metal jig arm can mutually agreeing with assembling, be respectively the first jig arm 1 and the second jig arm 2, L shaped metal jig arm is divided with short section part one and is connected to form by long section part, the long section part of two metal jig arm divides an inflexed side surface for the assembling surface of contact, also be provided with the square groove 5 that do not connect of indent at the assembling surface of contact of the first jig arm 1, the assembling surface of contact of vertical the second jig arm 2 is provided with the square duct 4 that the long section part that runs through the second jig arm 2 divides, the notch consistent size that does not connect groove 5 of the internal diameter size of the square duct 4 of the second jig arm 2 and the first jig arm 1, form concavo-convex joint portion 3 corresponding to position on the assembling surface of contact of two metal jig arm, making the first jig arm 1 and the second jig arm 2 carry out antisymmetry arranges while assembling, the internal diameter size of the square duct 4 of the second jig arm 2 docks with the notch that does not connect groove 5 of the first jig arm 1, form the installation slideway of square laminated-metal composite sample 9, after the laminating of the assembling surface of contact of the first jig arm 1 and the second jig arm 2 is agreed with to assembling, the projection of the inside surface that does not connect groove 5 on the assembling surface of contact of the inside surface of the square duct 4 of the second jig arm 2 projection on surface of contact and first jig arm 1 in assembling overlaps, laminated-metal composite sample 9 is processed, make the unlike material layer 6 of laminated-metal composite sample 9, the material thickness h2 of 7 interface 8 one sides is identical with the degree of depth h1 that does not connect groove 5 of the first jig arm 1, and make the outside surface of laminated-metal composite sample 9, square duct 4 inside surfaces of the second jig arm 2 are identical with the roughness of the inside surface that does not connect groove 5 of the first jig arm 1, the material hardness of two metal jig arm is greater than the hardness that forms any metal material in laminated-metal composite sample 9, when by laminated-metal composite sample 9 square duct by the second jig arm 24 push be installed to the first jig arm 1 do not connect the bottom limit position of groove 5 time, make the interface 8 of laminated-metal composite sample 9 concordant with the assembling surface of contact of two metal jig arm, short section part of two metal jig arm is arranged on respectively in two tiger’s jaw fixtures of cupping machine, make cupping machine apply 8 isoplanars, interface of tensile load axis and laminated-metal composite sample 9, carry out tension test, in the tension test process, concavo-convex joint portion 3 fits together two metal jig arm all the time closely.
In the present embodiment, on the assembling surface of contact of the first jig arm 1 and the second jig arm 2, dovetail shaped draw-in groove and dovetail shaped boss are set respectively, dovetail shaped draw-in groove and dovetail shaped boss agree with mutually, i.e. assembling forms concavo-convex joint portion 3.
In the present embodiment, take copper/steel laminated-metal composite sample as laminated-metal composite sample 9 to be measured, while using laminated-metal composite interface tension cohesive strength proving installation to be tested copper/steel laminated-metal composite sample, first copper to be measured/steel laminated-metal composite sample is cut into to 10mm * 10mm * 6mm square, it is 5mm that steel layer thickness and the first jig arm 1 square do not connect groove 5 degree of depth h1 consistent, as shown in Figure 2, copper/steel laminated-metal composite specimen surface is polished into identical with the roughness of the inside surface that does not connect groove 5 of square duct 4 inside surfaces of the second jig arm 2 and the first jig arm 1, for Ra0.2.Then make two metal clip facies medialis brachiis be parallel to each other, and the dovetail shaped boss that makes two dovetail shaped draw-in grooves on the metal jig arm and match that slides agree with mutually.By ready copper to be recorded/steel laminated-metal composite sample, by the square duct 4 of the second jig arm 2 the square of the first jig arm 1 of packing into, do not connect in groove 5, the copper layer, towards square duct 4 opening one sides of the second jig arm 2, is sent into sample the square end that does not connect groove 5 of the first jig arm 1 with thin rod.
The laminated-metal composite interface tension cohesive strength proving installation the assembled microcomputer of packing into is controlled on CMT5305 type electronic universal drawing machine, and upper and lower tiger’s jaw fixture clamps respectively short section part of the first jig arm 1 and the second jig arm 2, and loads tensile force.After starting imposed load, get microcomputer and record maximal force
p tC for this interface load-bearing capacity.
Calculate the interface tension cohesive strength by following formula:
Wherein
σ t for the interface tension cohesive strength,
p tC corresponding critical load during for the interface unsticking,
sfor the interface critical area.Corresponding critical load while mutually peeling off by testing, obtaining copper/steel sample interface
p tC be 12.4 KN, S=10mm * 10mm=100 mm
2, calculate this copper/steel sample
σ t =124MPa, this copper/steel sample interface tensile bond strength is 124MPa.Utilize the present embodiment laminated-metal composite interface tension cohesive strength proving installation quantitative measurment laminated metal laminar composite interface tension cohesive strength easily.
embodiment bis-:
The present embodiment and embodiment mono-are basic identical, and special feature is:
In the present embodiment, dovetail shaped draw-in groove and the dovetail shaped boss surface roughness matched are all consistent with the surfaceness of the assembling surface of contact of two metal jig arm, be convenient to processing, when bearing tensile load, laminated-metal composite interface tension cohesive strength proving installation more stable work.
The above is illustrated the utility model embodiment by reference to the accompanying drawings; but the utility model is not limited to above-described embodiment; the purpose that can also create according to utility model of the present utility model is made multiple variation; the change of making under all Spirit Essences according to technical solutions of the utility model and principle, modification, substitute, combination, simplify; all should be equivalent substitute mode; as long as meet structure and aufbauprinciple for the utility model laminated-metal composite interface tension cohesive strength proving installation, all belong to protection domain of the present utility model.
Claims (6)
1. a laminated-metal composite interface tension cohesive strength proving installation, it is characterized in that: comprise two L shaped metal jig arm can mutually agreeing with assembling, be respectively the first jig arm (1) and the second jig arm (2), L shaped metal jig arm is divided with short section part one and is connected to form by long section part, the long section part of two described metal jig arm divides an inflexed side surface for the assembling surface of contact, also be provided with the square groove (5) that do not connect of indent at the assembling surface of contact of described the first jig arm (1), the assembling surface of contact of vertical described the second jig arm (2) is provided with the square duct (4) that the long section part that runs through described the second jig arm (2) divides, the internal diameter size of the square duct (4) of described the second jig arm (2) and the notch consistent size that does not connect groove (5) of described the first jig arm (1), form concavo-convex joint portion (3) corresponding to position on the assembling surface of contact of two described metal jig arm, making described the first jig arm (1) and described the second jig arm (2) carry out antisymmetry arranges while assembling, the internal diameter size of the square duct (4) of described the second jig arm (2) docks with the notch that does not connect groove (5) of described the first jig arm (1), form the installation slideway of square laminated-metal composite sample (9), after the laminating of the assembling surface of contact of described the first jig arm (1) and described the second jig arm (2) is agreed with to assembling, the projection of the inside surface that does not connect groove (5) on the assembling surface of contact of the inside surface of the square duct (4) of described the second jig arm (2) projection on surface of contact and described first jig arm (1) in assembling overlaps, laminated-metal composite sample (9) is processed, make the unlike material layer (6 of laminated-metal composite sample (9), the material thickness (h2) of interface (8) one sides 7) is identical with the degree of depth that does not connect groove (5) (h1) of described the first jig arm (1), and make the outside surface of laminated-metal composite sample (9), the roughness of square duct (4) inside surface of described the second jig arm (2) and the inside surface that does not connect groove (5) of described the first jig arm (1) is identical, the material hardness of two described metal jig arm is greater than the hardness that forms any metal material in laminated-metal composite sample (9), when by laminated-metal composite sample (9) square duct (4) by described the second jig arm (2) push be installed to described the first jig arm (1) do not connect the bottom limit position of groove (5) time, make the interface (8) of laminated-metal composite sample (9) concordant with the assembling surface of contact of two described metal jig arm, short section part of two described metal jig arm is arranged on respectively in two tiger’s jaw fixtures of cupping machine, make cupping machine apply the isoplanar, interface (8) of tensile load axis and laminated-metal composite sample (9), carry out tension test, in the tension test process, concavo-convex joint portion (3) fits together two described metal jig arm all the time closely.
2. laminated-metal composite interface tension cohesive strength proving installation according to claim 1, it is characterized in that: on the assembling surface of contact of described the first jig arm (1) and described the second jig arm (2), dovetail shaped draw-in groove and dovetail shaped boss are set respectively, dovetail shaped draw-in groove and dovetail shaped boss agree with mutually, i.e. assembling forms concavo-convex joint portion (3).
3. laminated-metal composite interface tension cohesive strength proving installation according to claim 2 is characterized in that: dovetail shaped draw-in groove and the dovetail shaped boss surface roughness matched are all consistent with the surfaceness of the assembling surface of contact of two described metal jig arm.
4. according to the described laminated-metal composite interface tension of claim 2 or 3 cohesive strength proving installation, it is characterized in that: dovetail shaped draw-in groove inside surface roughness is neither lower than 0.2 with the outer surface roughness Ra of the dovetail shaped boss matched.
5. according to the described laminated-metal composite interface tension of any one in claim 1～3 cohesive strength proving installation, it is characterized in that: after described the first jig arm (1) and described the second jig arm (2) are agreed with mutually, in the tension test process, make two gap width d1 between described metal jig arm be not more than all the time 0.1mm.
6. according to the described laminated-metal composite interface tension of any one in claim 1～3 cohesive strength proving installation, it is characterized in that: the degree of depth h1 that does not connect groove (5) of described the first jig arm (1) is 1～8mm, laminated-metal composite sample (9) is processed, and making the material thickness h2 of interface (8) one sides of laminated-metal composite sample (9) is also 1～8mm.
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Cited By (9)
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| CN103760016A (en) * | 2014-02-13 | 2014-04-30 | 北京工业大学 | Fixture for testing composite material interface mechanical properties and experimental method |
| CN105784504A (en) * | 2016-03-01 | 2016-07-20 | 银邦金属复合材料股份有限公司 | Sample and method for detecting performance of metal composite plate |
| CN107328642A (en) * | 2017-05-08 | 2017-11-07 | 银邦金属复合材料股份有限公司 | The mould and method of a kind of test compound material interface shear strength |
| CN109855592A (en) * | 2019-01-08 | 2019-06-07 | 湘潭大学 | Matrix combination surface roughness determines method and device, composite material machining machine |
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| CN114486562A (en) * | 2021-12-30 | 2022-05-13 | 长春长光宇航复合材料有限公司 | Device and method for testing shear strength of composite material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103760016B (en) * | 2014-02-13 | 2016-08-17 | 北京工业大学 | A kind of fixture for test compound material interface mechanical property and experimental technique |
| CN103760016A (en) * | 2014-02-13 | 2014-04-30 | 北京工业大学 | Fixture for testing composite material interface mechanical properties and experimental method |
| CN105784504B (en) * | 2016-03-01 | 2019-02-19 | 银邦金属复合材料股份有限公司 | A method of for detecting composite metal plate performance |
| CN105784504A (en) * | 2016-03-01 | 2016-07-20 | 银邦金属复合材料股份有限公司 | Sample and method for detecting performance of metal composite plate |
| CN107328642B (en) * | 2017-05-08 | 2019-07-30 | 银邦金属复合材料股份有限公司 | A kind of mold and method for testing composite material interface shear strength |
| CN107328642A (en) * | 2017-05-08 | 2017-11-07 | 银邦金属复合材料股份有限公司 | The mould and method of a kind of test compound material interface shear strength |
| CN109855592A (en) * | 2019-01-08 | 2019-06-07 | 湘潭大学 | Matrix combination surface roughness determines method and device, composite material machining machine |
| CN110686972A (en) * | 2019-10-16 | 2020-01-14 | 南京航空航天大学 | Sample for measuring shear modulus of flexible skin of morphing aircraft and experimental method |
| CN113252448A (en) * | 2021-03-22 | 2021-08-13 | 中南大学 | Interface shear strength testing device and method for novel heterogeneous layered gradient composite material |
| CN114047060A (en) * | 2021-09-03 | 2022-02-15 | 北京理工大学 | A sample subassembly for explosive welding interface developments compression tensile mechanical properties test |
| CN114047060B (en) * | 2021-09-03 | 2023-11-03 | 北京理工大学 | Sample assembly for dynamic compression and stretching mechanical property test of explosive welding interface |
| CN114486562A (en) * | 2021-12-30 | 2022-05-13 | 长春长光宇航复合材料有限公司 | Device and method for testing shear strength of composite material |
| CN116223248A (en) * | 2022-12-09 | 2023-06-06 | 中材科技风电叶片股份有限公司 | Tool and method for testing interfacial shear of blade root embedded metal sleeve and composite material |
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