CN104180933A - Method for detecting residual stress of in-service composite component through X-rays - Google Patents
Method for detecting residual stress of in-service composite component through X-rays Download PDFInfo
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- CN104180933A CN104180933A CN201410436999.4A CN201410436999A CN104180933A CN 104180933 A CN104180933 A CN 104180933A CN 201410436999 A CN201410436999 A CN 201410436999A CN 104180933 A CN104180933 A CN 104180933A
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- service composite
- residual stress
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Abstract
The invention discloses a method for detecting residual stress of an in-service composite component through X-rays, and relates to a method for detecting residual stress of an in-service composite component. The method aims to solve the technical problems that in an existing method for detecting residual stress of an in-service composite component, damage is caused to the component, and the obtained magnitude of the residual stress is inaccurate. The method comprises the steps that metal wires are stuck onto the surface of the in-service composite component in parallel; 2 residual stress of the metal wires stuck onto the surface of the in-service composite component is detected through the X-ray detecting method, the residual stress of all the parts of the in-service composite component is obtained through calculation, and then the processes are completed. When the method is adopted to detect the residual stress of the in-service composite component, it can be guaranteed that no damage can be caused to the component, the magnitude of the residual stress of the in-service component can be obtained accurately and quickly, namely, the detecting method has the advantages of being lossless, capable of detecting the in-service component, simple and convenient to operate and the like. The method for detecting the residual stress of the in-service composite component through the X-rays is applied to the field of detection of residual stress of in-service composite components.
Description
Technical field
The present invention relates to a kind of method that detects in-service composite element unrelieved stress.
Background technology
Compound substance and metal material, Inorganic Non-metallic Materials, macromolecular material also claim four large material systems.Because the performance of compound substance is better than component material, make it obtain gradually application widely.Especially in recent years, because the advantage such as can designing, high specific strength, high ratio modulus, the performance of compound substance made it in fields such as Aero-Space, have good development prospect.Along with China is more and more higher to the requirement of aircraft industry, improve the application of compound substance in aircraft industry, can make large aircraft loss of weight and improve the performance of large aircraft.Meanwhile, along with the use proportion of compound substance in aircraft industry constantly increases, the safety detection of compound substance is also become to the problem that modern science worker need to pay attention to.Due to, large aircraft tends to cause various damages (impact injury etc.) in process under arms, brings the hidden danger of security conventionally can to large aircraft.In order not affect the normal work of large aircraft and to guarantee its safe flight, it is very important that the Dynamic Non-Destruction Measurement of compound substance becomes, and the detection of unrelieved stress is also paid attention to widely as one of important indicator detecting.Present stage does not have effective method for above-mentioned material and detects its unrelieved stress.
Summary of the invention
The present invention be to solve that the method for the in-service composite element unrelieved stress of existing detection exists member is caused to damage, the inaccurate technical matters of unrelieved stress size obtaining, thus a kind of method that detects in-service composite element unrelieved stress with X ray is provided.
Of the present invention a kind of by the method that X ray detects in-service composite element unrelieved stress, be to carry out according to the following steps:
One, by the tinsel of 6～10 sections by the parallel in-service composite element surface that is pasted on of 0.1～0.5mm spacing;
Two, with being pasted on the unrelieved stress wiry on in-service composite element surface in X ray detection method detecting step one, then as calculated, draw the unrelieved stress at each position of in-service composite element, complete the detection of in-service composite element unrelieved stress.
The present invention includes following beneficial effect:
Adopt the present invention to measure the unrelieved stress of in-service composite element, can guarantee can not cause damage to member, can obtain again the unrelieved stress size of the existing members of accurate quick, this detection method have harmless, can detect existing members, the advantage such as easy and simple to handle.
Embodiment
Embodiment one: a kind of of present embodiment is to carry out according to the following steps by the method that X ray detects in-service composite element unrelieved stress:
One, by the tinsel of 6～10 sections by the parallel in-service composite element surface that is pasted on of 0.1～0.5mm spacing;
Two, with being pasted on the unrelieved stress wiry on in-service composite element surface in X ray detection method detecting step one, then as calculated, draw the unrelieved stress at each position of in-service composite element, complete the detection of in-service composite element unrelieved stress.
Present embodiment comprises following beneficial effect:
Adopt present embodiment to measure the unrelieved stress of in-service composite element, can guarantee can not cause damage to member, can obtain again the unrelieved stress size of the existing members of accurate quick, this detection method have harmless, can detect existing members, the advantage such as easy and simple to handle.
Embodiment two: present embodiment is different from embodiment one: in step 1 by the tinsel of 8 sections by the parallel in-service composite element surface that is pasted on of 0.2mm spacing.Other is identical with embodiment one.
Embodiment three: present embodiment is different from embodiment one or two: in step 1, tinsel is steel wire.Other is identical with embodiment one or two.
By following verification experimental verification beneficial effect of the present invention:
Test one: a kind of of this test is to carry out according to the following steps by the method that X ray detects in-service composite element unrelieved stress:
One, by the steel wire of 8 sections by the parallel in-service composite element surface that is pasted on of 0.2mm spacing;
Two, with being pasted on the unrelieved stress of the steel wire on in-service composite element surface in X ray detection method detecting step one, then as calculated, draw the unrelieved stress at each position of in-service composite element, complete the detection of in-service composite element unrelieved stress.
Adopt the unrelieved stress of the in-service composite element of this test determination, can guarantee can not cause damage to member, can obtain again the unrelieved stress size of the existing members of accurate quick, this detection method have harmless, can detect existing members, the advantage such as easy and simple to handle.
Claims (3)
1. with X ray, detect a method for in-service composite element unrelieved stress, the method that it is characterized in that detecting with X ray in-service composite element unrelieved stress is to carry out according to the following steps:
One, by the tinsel of 6～10 sections by the parallel in-service composite element surface that is pasted on of 0.1～0.5mm spacing;
Two, with being pasted on the unrelieved stress wiry on in-service composite element surface in X ray detection method detecting step one, then as calculated, draw the unrelieved stress at each position of in-service composite element, complete the detection of in-service composite element unrelieved stress.
2. a kind of method that detects in-service composite element unrelieved stress with X ray according to claim 1, is characterized in that in step 1 the tinsel of 8 sections by the parallel in-service composite element surface that is pasted on of 0.2mm spacing.
3. a kind of method that detects in-service composite element unrelieved stress with X ray according to claim 1, is characterized in that in step 1, tinsel is steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410436999.4A CN104180933A (en) | 2014-08-29 | 2014-08-29 | Method for detecting residual stress of in-service composite component through X-rays |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410436999.4A CN104180933A (en) | 2014-08-29 | 2014-08-29 | Method for detecting residual stress of in-service composite component through X-rays |
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| CN104180933A true CN104180933A (en) | 2014-12-03 |
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| CN201410436999.4A Pending CN104180933A (en) | 2014-08-29 | 2014-08-29 | Method for detecting residual stress of in-service composite component through X-rays |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908177A (en) * | 2017-03-15 | 2017-06-30 | 哈尔滨工业大学 | A kind of device for measuring anisotropic material plane stress |
| CN108459343A (en) * | 2017-12-19 | 2018-08-28 | 成都飞机工业（集团）有限责任公司 | A kind of beam angle measurement method |
| CN113340503A (en) * | 2021-06-24 | 2021-09-03 | 武汉东海石化重型装备有限公司 | Material increase manufacturing method of pressure-bearing equipment convenient for stress sensing |
Citations (4)
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| CN1375689A (en) * | 2001-03-16 | 2002-10-23 | 中国科学院金属研究所 | Residual stress measuring method |
| JP2012013423A (en) * | 2010-06-29 | 2012-01-19 | Nippon Steel Corp | X-ray stress measuring apparatus |
| CN103278513A (en) * | 2013-04-22 | 2013-09-04 | 广州市特种机电设备检测研究院 | In-situ detection system for residual stress, and detection method thereof |
| CN103808438A (en) * | 2014-01-16 | 2014-05-21 | 浙江工业大学 | Method for measuring sheet welding residual stress |
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2014
- 2014-08-29 CN CN201410436999.4A patent/CN104180933A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1375689A (en) * | 2001-03-16 | 2002-10-23 | 中国科学院金属研究所 | Residual stress measuring method |
| JP2012013423A (en) * | 2010-06-29 | 2012-01-19 | Nippon Steel Corp | X-ray stress measuring apparatus |
| CN103278513A (en) * | 2013-04-22 | 2013-09-04 | 广州市特种机电设备检测研究院 | In-situ detection system for residual stress, and detection method thereof |
| CN103808438A (en) * | 2014-01-16 | 2014-05-21 | 浙江工业大学 | Method for measuring sheet welding residual stress |
Non-Patent Citations (1)
| Title |
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| 温磊: "复合材料层压板残余应力的研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908177A (en) * | 2017-03-15 | 2017-06-30 | 哈尔滨工业大学 | A kind of device for measuring anisotropic material plane stress |
| CN108459343A (en) * | 2017-12-19 | 2018-08-28 | 成都飞机工业（集团）有限责任公司 | A kind of beam angle measurement method |
| CN108459343B (en) * | 2017-12-19 | 2021-11-30 | 成都飞机工业（集团）有限责任公司 | Ray bundle angle testing method |
| CN113340503A (en) * | 2021-06-24 | 2021-09-03 | 武汉东海石化重型装备有限公司 | Material increase manufacturing method of pressure-bearing equipment convenient for stress sensing |
| CN113340503B (en) * | 2021-06-24 | 2024-06-18 | 武汉东海石化重型装备有限公司 | Material increase manufacturing method for pressure equipment convenient for stress sensing |
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Application publication date: 20141203 |